BENDER PEM575 (01) PDF MANUAL


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Universal measuring device Software version 2.00.xx PEM575_D00016_01_M_XXEN/05.2016 B 9310 0575 B 9310 0576 B 9310 0577 B 9310 0578 B 9310 0579 B 9310 0580 Bender GmbH & Co. KG Londorfer Str. 65 • 35305 Gruenberg • Germany Postfach 1161 • 35301 Gruenberg • Germany Tel.: +49 6401 807-0 Fax: +49 6401 807-259 E-Mail: info@bender.de bender.de © Bender GmbH & Co. KG All rights reserved. Reprinting only with permission of the publisher. Subject to change! Photos: Bender

Table of Contents 1. Making effective use of this document ............................................... 9 1.1 How to use this manual ......................................................................................... 9 1.2 Technical support: Service and support ........................................................ 10 1.3 Workshops ............................................................................................................... 11 1.4 Delivery conditions, guarantee, warranty and liability ............................ 11 2. Safety ...................................................................................................... 13 2.1 Intended use ........................................................................................................... 13 2.2 Qualified personnel .............................................................................................. 13 2.3 General safety instructions ................................................................................ 14 3. Device description ............................................................................... 15 3.1 Area of application ................................................................................................ 15 3.2 Device features ....................................................................................................... 15 3.3 Versions ..................................................................................................................... 16 3.4 Application example ............................................................................................ 17 3.5 Description of function ....................................................................................... 17 3.6 Front view and rear view .................................................................................... 18 4. Installation and connection ............................................................... 19 4.1 Project planning ..................................................................................................... 19 4.2 Safety instructions ................................................................................................. 19 4.3 Installing the device ............................................................................................. 19 4.3.1 Dimension diagrams ................................................................................... 19 4.3.2 Front panel mounting ................................................................................ 20 4.4 Connection of the device ................................................................................... 21 4.4.1 Safety information ....................................................................................... 21 4.4.2 Back-up fuses ................................................................................................. 21 4.4.3 Connection of measuring current transformers ............................... 21 3 PEM575_D00016_01_M_XXEN/05.2016 Table of Contents 4.5 Instructions for connection ................................................................................ 21 4.6 Wiring diagram ....................................................................................................... 22 4.7 Connection diagram voltage inputs ............................................................... 23 4.7.1 Three-phase 4-wire system (TN, TT, IT system) .................................. 23 4.7.2 Three-phase 3-wire system ....................................................................... 24 4.7.3 Connection via voltage transformers ................................................... 25 4.8 Digital inputs ........................................................................................................... 25 4.9 Digital outputs ........................................................................................................ 26 4.10 Modbus TCP (connector pin assignment) .................................................... 26 5. Commissioning ...................................................................................... 27 5.1 Check proper connection ................................................................................... 27 5.2 Before switching on .............................................................................................. 27 5.3 Switching on ............................................................................................................ 27 5.4 System ....................................................................................................................... 27 6. Operation ............................................................................................... 29 6.1 Getting to know the operating elements .................................................... 29 6.2 LCD testing ............................................................................................................... 30 6.3 Getting to know standard display areas ....................................................... 30 6.4 Power and current demands (demand display) ......................................... 32 6.5 LED indication ......................................................................................................... 34 6.6 Standard display .................................................................................................... 34 6.7 Data display ............................................................................................................. 34 6.7.1 "V/I" button ..................................................................................................... 35 6.7.2 "POWER"button ............................................................................................ 37 6.7.3 "HARMONICS" button ................................................................................. 39 6.7.4 "ENERGY" button .......................................................................................... 40 6.8 Setup configuration via the front panel ........................................................ 41 6.8.1 Setup: Function of buttons ....................................................................... 41 6.8.2 Setup: Overview diagram menu ............................................................. 42 6.9 Setup: adjustment possibilities ........................................................................ 43 6.10 Configuration example: ....................................................................................... 49 4 PEM575_D00016_01_M_XXEN/05.2016 Table of Contents 7. Application/inputs and outputs ......................................................... 51 7.1 Digital inputs (DI) ................................................................................................... 51 7.2 Digital outputs (DO) ............................................................................................. 51 7.3 Energy pulsing output ......................................................................................... 52 7.4 Power and energy ................................................................................................. 52 7.4.1 Basic measurements ................................................................................... 52 7.4.2 High-speed measurements ...................................................................... 53 7.4.3 Voltage and current phase angles ......................................................... 53 7.4.4 Energy .............................................................................................................. 53 7.5 Demand DMD ......................................................................................................... 53 7.5.1 Max/Min values per demand period ..................................................... 55 7.6 Setpoints ................................................................................................................... 55 7.7 Logic modules ........................................................................................................ 59 8. Logging ................................................................................................... 61 8.1 Peak demand log ................................................................................................... 61 8.2 Max/Min log ............................................................................................................. 61 8.3 Data recorder (DR) ................................................................................................. 62 8.3.1 Setup parameters ......................................................................................... 63 8.3.2 Selectable measured quantities for data recorders DR .................. 64 8.4 Energy log ................................................................................................................ 76 8.5 Waveform recording (WFR) ................................................................................ 77 8.6 Power Quality log (PQ log) ................................................................................. 78 8.7 Event log (SOE log) ................................................................................................ 79 9. Power Quality ........................................................................................ 81 9.1 Fundamentals ......................................................................................................... 81 9.2 Harmonic distortion .............................................................................................. 81 9.3 Deviation from the pre-set nominal value (ΔU, Δ❆) .................................. 83 9.4 Undervoltage/overvoltage setpoint (sag/swell setpoint) ...................... 84 9.5 Transient events setpoint ................................................................................... 84 9.6 Time synchronisation ........................................................................................... 84 5 PEM575_D00016_01_M_XXEN/05.2016 Table of Contents 10. Modbus Register Map ........................................................................ 85 10.1 Basic measurements ............................................................................................. 87 10.2 Energy measurement ........................................................................................... 91 10.3 Pulse counter .......................................................................................................... 92 10.4 Fundamental measurements (Power quality) ............................................. 93 10.5 Harmonic measurements (Power quality) .................................................... 95 10.6 High-speed measurement ................................................................................. 97 10.7 Demand ..................................................................................................................... 99 10.7.1 Present demand ........................................................................................... 99 10.7.2 Predicted demand .................................................................................... 100 10.7.3 Maximum values per demand period ............................................... 102 10.7.4 Minimum values per demand period ................................................ 104 10.7.5 Peak demand of this month .................................................................. 106 10.7.6 Peak demand last month ....................................................................... 106 10.7.7 Peak demand data structure ................................................................. 107 10.8 Max/Min log .......................................................................................................... 108 10.8.1 Maximum values of this month .......................................................... 108 10.8.2 Min log of this month .............................................................................. 110 10.8.3 Max log of last month .............................................................................. 112 10.8.4 Min log last month .................................................................................... 114 10.8.5 Max/Min log data structure ................................................................... 115 10.9 Setup parameters ............................................................................................... 116 10.10 Clear/reset register ............................................................................................. 121 10.11 Setpoint setup parameters ............................................................................. 123 10.11.1 Structure of the setpoint register (standard) .................................. 124 10.11.2 Setpoint register structure (high speed) ........................................... 124 10.12 Logic module ....................................................................................................... 127 10.12.1 Logic module registers ............................................................................ 127 10.12.2 Logic module data structure ................................................................. 127 10.13 Data recorder (DR) .............................................................................................. 129 10.13.1 Data recorder register .............................................................................. 129 10.13.2 High-speed data recorder register structure .................................. 130 10.13.3 Standard data recorder register structure ....................................... 132 10.14 Waveform recording (WFR) ............................................................................. 133 6 PEM575_D00016_01_M_XXEN/05.2016 Table of Contents 10.15 Energy log ............................................................................................................. 136 10.16 PQ log ..................................................................................................................... 138 10.17 Event log (SOE log) ............................................................................................. 139 10.17.1 Energy log register .................................................................................... 140 10.17.2 Event log data structure ......................................................................... 140 10.17.3 Event classification (SOE log) ............................................................... 141 10.18 Time setting .......................................................................................................... 151 10.19 DOx output control ........................................................................................... 152 10.20 Universal measuring device information ................................................... 153 11. Technical data .................................................................................. 155 11.1 Standards and certifications ........................................................................... 157 11.2 Ordering information ........................................................................................ 157 INDEX ......................................................................................................... 159 7 PEM575_D00016_01_M_XXEN/05.2016 1. Making effective use of this document 1.1 How to use this manual This manual is aimed at qualified personnel in electrical engineering and communications technology, installers and users of the product and must be kept ready for referencing in the immediate vicinity of the device. To make it easier for you to understand and revisit certain sections of text and instructions in the manual, we have used symbols to identify important instructions and information. The meaning of these symbols is explained below: The signal word indicates that there is a high risk of danger,, that will

DANGER WARNING CAUTION result in death or serious injury if not avoided. This signal word indicates a medium risk of danger that can lead to death or serious injury if not avoided. This signal word indicates a low level risk that can result in minor or moderate injury or damage to property if not avoided. This symbol denotes information intended to assist the user in making optimum use of the product.

Although great care has been taken in the drafting of this operating manual, it may nevertheless contain errors and mistakes. Bender cannot accept any liability for injury to persons or damage to property resulting from errors or mistakes in this manual. Each of the registered trademarks which appears in this document remains the property of its owner. PEM575_D00016_01_M_XXEN/05.2016 9 Making effective use of this document 1.2 Technical support: Service and support For commissioning and troubleshooting Bender offers you: First level support Technical support by phone or e-mail for all Bender products ● All questions about customer applications ● Commissioning ● Troubleshooting Phone: +49 6401 807-760* Fax: +49 6401 807-259 only available in Germany: 0700BenderHelp (Tel. and Fax) E-mail: support@bender-service.com Repair service Repair, calibration, update and replacement service for all Bender products ● Repair, calibration, testing and analysing Bender products ● Hardware and software update for Bender devices ● Delivery of replacement devices for faulty or incorrectly delivered Bender devices ● Extended warranty for Bender devices with in-house repair service resp. replace ment devices at no extra cost Phone: +49 6401 807-780** (technical issues) +49 6401 807-784**, -785** (commercial matters) Fax: +49 6401 807-789 E-mail: repair@bender-service.com Please send the devices for repair to the following address: Bender GmbH, Repair Service Londorfer Strasse 65 35305 Gruenberg, Germany 10 PEM575_D00016_01_M_XXEN/05.2016 Making effective use of this document Field service On-site service for all Bender products ● Commissioning, parameter setting, maintenance, trouble shooting for Bender products ● Analysis of the electrical installation in the building (power quality test, EMC test, thermography) ● Practical training courses for customers Phone: +49 6401 807-752**, -762 **(technical issues) +49 6401 807-753** (commercial matters) Fax: +49 6401 807-759 E-mail: fieldservice@bender-service.com Internet: bender.de. *Available from 7.00 a.m. to 8.00 p.m. on 365 days of the year (CET/UTC+1) **Mo-Thu 7.00 a.m. - 8.00 p.m., Fr 7.00 a.m. - 13.00 p.m. 1.3 Workshops Bender would be happy to provide training in respect of the use of the universal measuring device. Current dates of training courses and workshops can be found on the Internet at bender.de -> Know-how -> Seminars. 1.4 Delivery conditions, guarantee, warranty and liability The conditions of sale and delivery set out by Bender apply. For software products, the "Softwareklausel zur Überlassung von Standard Software als Teil von Lieferungen, Ergänzung und Änderung der Allgemeinen Lieferbedingungen für Erzeugnisse und Leistungen der Elektroindustrie" (software clause in respect of the licensing of standard software as part of deliveries, modifications and changes to general delivery conditions for products and services in the electrical industry) set out by the ZVEI (Zentralverband Elektrotechnik- und Elektronikindustrie e.V., (German Electrical and Electronic Manufacturers' Association) also applies. Conditions of sale and delivery can be obtained from Bender in printed or electronic format. PEM575_D00016_01_M_XXEN/05.2016 11 Making effective use of this document 12 PEM575_D00016_01_M_XXEN/05.2016 2. Safety 2.1 Intended use The universal measuring device PEM575 is suitable for ● the analysis of energy and power ● monitoring of the power supply quality ● data recording for energy management. As a compact device for front panel mounting, it is a replacement for analogue indicating instruments. Das PEM575 is suitable for 2, 3 and 4-wire systems and can be used in TN, TT and IT systems. The current measurement inputs of the PEM are connected via external …/1 A or…./5 A measuring current transformers. In principle, measurements in medium and high voltage systems are carried out via measurement transformers and voltage transformers. Use for the intended purpose also includes: ● Device-specific settings according to local equipment and operating conditions. ● The observation of all information in the operating manual. 2.2 Qualified personnel Only electrically skilled persons are authorised to install and commission this device. Electrically skilled persons are those who have the relevant education, knowledge and experience, as well as knowledge of the relevant safety standards and who are able to perceive risks and to avoid hazards which electricity can create when work activities are carried out on electrical installations. The electrically skilled person is specially trained for carrying out work activities in his specific working environment and has a thorough knowledge of the relevant standards and regulations. In Germany, an electrically skilled person must meet the requirements of the accident prevention regulation BGV A3. In other countries the applicable regulations have to be observed and followed. PEM575_D00016_01_M_XXEN/05.2016 13 Safety 2.3 General safety instructions Bender devices are designed and built in accordance with the state of the art and accepted rules in respect of technical safety. However, the use of such devices may introduce risks to the life and limb of the user or third parties and/or result in damage to Bender equipment or other property. Danger of electric shock! Touching live parts will cause danger of electric shock with fatal

DANGER consequences. All work activities on electrical installations as well as installation activities, commissioning activities and work activities with the device in operation may only be carried out by electrically skilled persons!

● Only use Bender equipment: – as intended – in perfect working order – in compliance with the accident prevention regulations and guidelines appli cable at the location of use ● Eliminate all faults immediately which may endanger safety. ● Do not make any unauthorised changes and only use replacement parts and opti onal accessories purchased from or recommended by the manufacturer of the equipment. Failure to observe this requirement can result in fire, electric shock and injury. ● Information plates must always be clearly legible. Replace damaged or illegible plates immediately. ● If the device is overloaded by overvoltage or a short-circuit current load, it must be checked and replaced if necessary. ● If the device is being used in a location outside the Federal Republic of Germany, the applicable local standards and regulations must be complied with. European standard EN 50110 can be used as a guide. 14 PEM575_D00016_01_M_XXEN/05.2016 3. Device description 3.1 Area of application For humans, electric current is not immediately visible. Universal measuring devices for monitoring electrical parameters are used wherever energy consumption, performance measurements or the quality of the supply voltage are to be made visible. The PEM575 is suitable for monitoring ● power generation systems (PV systems, CHPs, hydro power and wind power plants) ● energy-intensive equipment and parts of installation ● sensitive equipment 3.2 Device features The universal measuring device PEM575 for power quality and energy management is characterised by the following features: ● Accuracy class in accordance withIEC 62053-22: 0.2 S ● Password protection ● 16 programmable setpoints ● LED pulse outputs for active and reactive energy ● Modbus RTU communication via RS-485 interface ● 6 digital inputs ● 3 digital outputs ● Power and current demands for particular time frames ● Peak demands with timestamps ● Individual, current/voltage harmonics up to the 63rd harmonic ● Max and Min values ● High-resolution waveform recording (12.8 kHz) ● Data recorder ● Event log: 512 events, setup changes, setpoint alarming, DI status changes, DO switching operations ● Sag/swell detection ● Detection of transient events ● Communication: PEM575_D00016_01_M_XXEN/05.2016 15 Device description – Galvanically isolated RS-485 interface (1,200 … 19,200 bit/s) – Modbus/RTU protocol – Modbus/TCP (10/100 Mbit/s) ● Measured quantities – Phase voltages UL1, UL2, UL3 in V – Line-to-line voltages UL1L2, UL2L3, UL3L1 in V – Phase currents I1, I2, I3 in A – Neutral current (calculated) I0 in A – Neutral current (measured) I4 in A – Frequency f in Hz – Phase angle for U and I in ° – Power per phase conductor P in kW, Q in kvar, S in kVA – Total power P in kW, Q in kvar, S in kVA – Displacement factor cos (φ) – Power factor λ – Active and reactive energy import in kWh, kvarh – Active and reactive energy export in kWh, kvarh – Voltage unbalance in % – Current unbalance in % – Harmonic distortion (THD, TOHD, TEHD) for U and I – K-factor for I 3.3 Versions Type Nominal system voltage 3(N)AC Current input PEM575 230/400 V 5 A PEM575-251 230/400 V 1 A PEM575-455 400/690 V 5 A PEM575-451 400/690 V 1 A PEM575-155 69/120 V 5 A PEM575-151 69/120 V 1 A 16 PEM575_D00016_01_M_XXEN/05.2016 Device description

3.4 Application example PEM7xx U I Modbus TCP L PEN PE PAS PEM7xx Modbus TCP U I Ethernet NSHV CP700 Datenbank BMS 1…12

PEM5xx PEM5xx U U I I Modbus RTU RCMS

Modbus TCP Modbus RTU L N PE Modbus TCP Modbus RTU UV1 3 PEM3xx Modbus RTU U I 3 PEM3xx Modbus RTU 1…12 UV2 RCMS U I

Fig. 3.1: Application example 3.5 Description of function The digital universal measuring device PEM575 is suited for measuring and displaying electrical quantities of a public electricity network. The PEM575 is able to perform current, voltage, energy consumption and performance measurements as well as displaying individual harmonic components of current and voltage for assessment of the voltage and current quality. PEM575_D00016_01_M_XXEN/05.2016 17 Device description The accuracy of the active energy metering corresponds to class 0.2 S in compliance with the DIN EN 62053-22 (VDE 0418 Part 3-22):2003-11. The large display of the panel mounting device makes the relevant measured quantities easily legible and enables fast configuration. In addition, the RS-485 interface allows a central evaluation and processing of data. Switching operations can be monitored or initiated via the digital inputs and outputs (Example: Switching off uncritical loads if the peak load limit value is exceeded). The universal measuring device PEM575 provides the following functions: ● Provision of energy consumption data for a well-thought-out energy manage ment ● Allocation of energy costs ● Power quality monitoring for cost reduction and increased plant availability ● High-resolution waveform recording allow analysis of power quality phenomena 3.6 Front view and rear view The connecting terminals are located at the rear of the device.

LINETRAXX® kWh kvarh PEM575 DIC DI1 DI2 DI3 DI4 DI5 DI6 ETH RS-485 Power A1 A2 DO34 DO33 DO24 DO23 DO14 DO13

D+ SH l42 D- SH

• l41 • l11 l12 V/I POWER HARMONICS ENERGY OK L1 L2 L3 N • l21 • l31 l22 l32

Fig. 3.2: Front view (left) and rear view (right) PEM575 18 PEM575_D00016_01_M_XXEN/05.2016 4. Installation and connection 4.1 Project planning For any questions associated with project planning, please contact Bender: Internet: bender.de Tel.: +49-6401-807-0 4.2 Safety instructions Only electrically skilled persons are allowed to connect and commission the device. Such persons must have read this manual and understood all instructions relating to safety. Danger of electric shock! Follow the basic safety rules when working with electricity.

DANGER Consider the data on the rated voltage and supply voltage as specified in the technical data!

4.3 Installing the device 4.3.1 Dimension diagrams 106 91 88 6 9 96 Fig. 4.1: Dimension diagram PEM575 (front view) PEM575_D00016_01_M_XXEN/05.2016 19 Installation and connection

18 88 91 18 96

Fig. 4.2: Dimension diagram PEM575 (side view) 92 2 9 Fig. 4.3: Dimension diagram PEM575 (panel cutout) 4.3.2 Front panel mounting A front panel cutout of 92 mm x 92 mm is necessary for installation. 1. Insert the device through the cutout in the front panel. 2. Insert the two installation clips into the equipment rail from behind. 3. Push the clips towards the front panel and tighten the associated screws by hand. 4. Check the device to ensure that it is firmly installed in the front panel. The device is installed. 20 PEM575_D00016_01_M_XXEN/05.2016 Installation and connection 4.4 Connection of the device 4.4.1 Safety information Danger of electric shock! Follow the basic safety rules when working with electricity.

DANGER Consider the data on the rated voltage and supply voltage as specified in the technical data!

4.4.2 Back-up fuses Back-up fuse supply voltage: 6 A Short-circuit protection Protect the measuring inputs according to the requirements of the standards. (Recommendation: 2 A). A suitable isolation means must be provided. For details refer to the operating manuals of the measuring current transformers currently used. If the supply voltage Us is supplied by an IT system, both lines are to be protected. 4.4.3 Connection of measuring current transformers When connecting the measuring current transformers it is important to consider the requirements of DIN VDE 0100-557 (VDE 0100-557) – Low voltage installations - Part 5: Selection and erection of electrical equipment - Section 557: Auxiliary circuits. 4.5 Instructions for connection ● Connect the PEM575 to the supply voltage (terminals A1 and A2 resp. +/-). Con nect terminal " " to the protective conductor. ● Power protection by a 6 A fuse, quick response. If being supplied from an IT sys tem, both lines have to be protected by a fuse. ● Connection to the RS-485 bus is made via the terminals D+, D- and SH. Up to 32 devices can be connected to the bus. The maximum cable length for the bus con nection of all devices is 1200 m. PEM575_D00016_01_M_XXEN/05.2016 21 Installation and connection 4.6 Wiring diagram Connect the device according the wiring diagram. The connections are located at the rear of the device. 1

DIC DI1 DI2 DI3 DI4 DI5 DI6 ETH RS-485 Power A1 A2 DO34 DO33 DO24 DO23 DO14 DO13 US 2

7 SH l42 D+ D- SH

• l41 • l11 l12 L1 L2 L3 N • l21 • l31 l22 l32 DI1 DI2 DI3 DI4 DI5 DI6 DIC 3

6 5 I11 I12 I21 I22 I31 I32 I41 I42 L1 L2 L3 N DO13 DO14 DO23 DO24 DO33 DO34 4

L1 L2 L3 N Legend to wiring diagram 1 Connection RS-485 bus Fig. 4.4: Wiring diagram

2 Supply voltage. Power protection by a 6 A fuse, quick response. If being supplied from an IT system, both lines have to be protected by a fuse. 3 Digital inputs 4 Digital outputs (N/O contacts) 5 Measuring voltage inputs: The measuring leads should be protected with appropriate fuses. 6 Connection to the system to be monitored 7 Connection Modbus TCP 22 PEM575_D00016_01_M_XXEN/05.2016 Installation and connection 4.7 Connection diagram voltage inputs 4.7.1 Three-phase 4-wire system (TN, TT, IT system) The universal measuring device PEM575 can be used in three-phase-4-wire systems, independent of the type of distribution system (TN, TT, IT system). AC 230/400 V AC 400/690 V (PEM575-451/-455) L1 L2 L3 N Ri PEM Fig. 4.5: Connection diagram three-phase 4-wire system (e.g. TN-S system) PEM575_D00016_01_M_XXEN/05.2016 23 Installation and connection 4.7.2 Three-phase 3-wire system The universal measuring device PEM575 can be used in three-phase-3-wire systems. The line voltage must not exceed AC 400 V. When used in 3-wire systems, the connection type (TYPE) has to be set to DELTA (refer to page 43). For this purpose, the measuring inputs L2 and N are to be bridged. AC 400 V AC 690 V (PEM575-451/-455)

L1 L2 L3 PEM N Ri

Fig. 4.6: Connection diagram three-phase-3-wire system 24 PEM575_D00016_01_M_XXEN/05.2016 Installation and connection 4.7.3 Connection via voltage transformers The coupling via voltage transformers allows the use of the measuring device in medium and high voltage systems. The transformation ratio can be adjusted in the PEM575 (1…10000). LV / MV / HV L1 L2 L3 N Ri PEM Fig. 4.7: Connection diagram 3-wire system via voltage transformers 4.8 Digital inputs The universal measuring device PEM575 provides 6 digital inputs. The inputs are supplied by a galvanically isolated DC 24 V voltage. An external circuit providing at least a current of Imin > 2.4 mA is required for triggering the inputs. DI1 DI2 DI3 DI4 DI5 DI6 DIC PEM575_D00016_01_M_XXEN/05.2016 25 Installation and connection 4.9 Digital outputs The universal measuring device PEM575 features 3 configurable outputs (N/O contact). Rated operational

DO13 DO14 DO23 DO24 DO33 DO34 voltage AC 230 V DC 24 V AC 110 V DC 12 V Rated operational current 5 A 5 A 6 A 5 A

4.10 Modbus TCP (connector pin assignment) RJ45 Pin assignment 1 Transmit Data + 2 Transmit Data –

12345678 3 Receive Data + 4, 5, 7, 8 not used 6 Receive Data –

26 PEM575_D00016_01_M_XXEN/05.2016 5. Commissioning 5.1 Check proper connection Observe the relevant standards and regulations that have to be observed for installation and connection as well as the operating manual of the respective device. 5.2 Before switching on Before switching on think carefully about these questions: 1. Does the connected supply voltage correspond to the nameplates' informa tion? 2. Are you sure that the nominal insulation voltage of the measuring current transformer has not been exceeded? 3. Does the measuring current transformer's maximum current correspond to the nameplate information of the connected device? 5.3 Switching on After switching on, proceed as follows: 1. Connect the supply voltage. 2. Set the bus address/IP address. 3. Set the CT transformation ratio (for each channel). 4. Change the measuring current transformer's counting direction, if required. 5. Set the nominal voltage (line-to-line voltage ULL). 6. Select wye connection or delta connection. 5.4 System The universal measuring device PEM575 can be programmed and queried via Modbus RTU. For details refer to „chapter 10. Modbus Register Map“ or the Internet modbus.org. PEM575_D00016_01_M_XXEN/05.2016 27 Commissioning In addition, it is possible to integrate the device into Bender's own BMS (Bender measuring device interface) bus protocol via additional communication modules. In this way, communication with (already existing) Bender devices for device parameterisation and visualisation of measured values and alarms can be achieved. Help and examples of system integration can be found on the Bender homepage bender.de or you can contact our Bender Service for personal advice (see „chapter 1.2 Technical support: Service and support“). 28 PEM575_D00016_01_M_XXEN/05.2016 6. Operation 6.1 Getting to know the operating elements 1 2

LINETRAXX® kWh kvarh PEM575 3 V/I POWER HARMONICS ENERGY OK 456 7 Fig. 6.1: Operating elements

Legend to operating elements No. Element Description 1 LED kWhPulse output, see page 34 2 LED kvarh 3 LC display

4"V/I" button 5"POWER" button 6"HARMONICS" button 7 "ENERGY" button OK Display mean values and total values (current, voltage) in the menu: in case of numerical values: move the cursor one to the left by one position Display power-related measured quantities in the menu: go up one entry in case of numerical values: increments a value Display harmonics in the menu: go back to the last parameter in the menu in case of numerical values: decrements a value Press > 3 s: toggles between setup and standard display mode Display measured values: active and reactive energy import/active and reactive energy export (line 5) in the menu: select parameters for modification save the new setting

PEM575_D00016_01_M_XXEN/05.2016 29 Operation 6.2 LCD testing Pressing both the "POWER" and "HARMONICS" buttons simultaneously for > 2 seconds enters the LCD testing mode. During testing, all LCD segments are illuminated for one second and then turned off for 1 second. This cycle will be repeated 3 times. After completion of the test run, the device automatically returns to its normal display mode. Fig. 6.2: Display during an LCD test 6.3 Getting to know standard display areas The display can generally be divided into five areas. 30 PEM575_D00016_01_M_XXEN/05.2016 Operation 1 2 5 3 4 Legend to standard display areas No. Description 1 Displays the indicators for DI status and DO status 2 Measured values 3 Harmonic Distortion HD, unbalance (unb), quadrant, measurement units Displays energy information such as active energy (import, export, net energy and total energy in kWh), reactive energy (import, export, energy net amount and total 4 energy in kvar), apparent energy (Sges in kVAh) Shows parameters for voltage, current, fundamental, power, total harmonic distor 5 tions THD, TOHD, TEHD (2nd…3st harmonic), k-factor, unbalance (unb), phase angle for voltages and currents, demands Fig. 6.3: Display areas PEM575_D00016_01_M_XXEN/05.2016 31 Operation Description of standard display indications (ranges 1, 3 and 4) Area Segments Symbol description 1 DI open DI closed DO open DO closed

V, kV, A, %, Hz Measurement units for U, I, THD, f Current value expressed as a kW, MW, kvar, kVA, MVA Measurement units for P, Q, S

percentage inductive, capacitive 3

C1 Q2 Q1

Status communica tion interface Q3 Q4 Alarm symbol Quadrant

4 IMP kWh Active energy import TOT kWh Total active energy NET kvarh EXP kWh Active energy export IMP kvarh Reactive energy import TOT kvarh NET kWh Active energy net amount EXP kvarh Reactive energy export

Reactive energy net amount Total reactive energy kVAh Apparent energy

Fig. 6.4: Standard display indications 6.4 Power and current demands (demand display) The demands are indicated on the display according to the following scheme: 32 PEM575_D00016_01_M_XXEN/05.2016 Operation

4 Legend to demand display No. Display 1 2 3 Fig. 6.5: Display: peak demand

1 Peak demand value 2 Peak demand timestamp (date): JJJJ.MM.TT 3 Peak demand timestamp (time): HH:MM:SS Demand displays: A: I1 b: I2 C: I3 P: Active energy demand P 4 q: Reactive energy demand Q S: Apparent energy demand DMD: Demand MAX Maximum TM: this month LM: last month PEM575_D00016_01_M_XXEN/05.2016 33 Operation 6.5 LED indication The universal measuring device features two red LEDs on its front panel: kWh and kvarh. The two LED indicators are used for the indication of kWh and kvar, if the EN PULSE function is enabled. The setting can be carried out in the setup menu using the buttons on the front or via the communications interface.. The LEDs flash each time a certain amount of energy is reached (1 kWh resp.1 kvarh). The amount of energy displayed corresponds to the amount of energy measured by the measuring device. In order to determine the actual amount of energy, the flashing frequency can be calculated from the CT ratio and the pulse constant. 6.6 Standard display The universal measuring device automatically shows the default display screen, if there is no button pressed for 3 minutes in the Setup mode. First line Second line Third line Fourth line Fifth line Left column Right column Fig. 6.6: Standard display 6.7 Data display There are four buttons on the display to view measuring data: "V/I", "POWER" , "HARMONICS" and "ENERGY". The following tables illustrate how to retrieve individual values. PEM575 also provides the fundamental components (related to f(0)) for the measured quantities listed in the following table (in display shown as "d"). 34 PEM575_D00016_01_M_XXEN/05.2016 Operation 6.7.1 "V/I" button

Left column TOT U1 2 3 AVG U1-2 2-3 3-1 AVG I1 2 3 AVG Right column First line Second line Third line Fourth line V A W Ø U Ø I Pges Power factor λges V *UL1 *UL2 *UL3 *Ø ULN V UL1L2 UL2L3 UL3L1 Ø ULL A I1 I2 I3 Ø I

I4 A I4 I0 ANeutral current I0 (calculated) d 1

2 3 AVG d 1 2 3 AVG V UL1(f0) UL2 (f0) UL3 (f0) Ø ULN (f0) A I1 (f0) I2 (f0) I3 (f0) Ø I (f0)

F Hz f U unb % Unbalance U I unb % Unbalance I U1

PA 2 3 I1 PA 2 3 Phase angle UL1 Phase angle UL2 Phase angle UL3 Phase angle I1 Phase angle I2 Phase angle I3

PEM575_D00016_01_M_XXEN/05.2016 35 Operation

Left column I1 DMD 2 3 Right column First line Second line Third line Fourth lineA Demand I1 Demand I2 Demand I3 Ø Demand I

DMD I4 A Demand I4 A

DMD MAX TM b DMD MAX TM C DMD MAX TM A DMD MAX LM b DMD MAX LM C DMD MAX LM Note table 6.1: APeak demand I1 this month JJJJ.MM.TT hh:mm:ss APeak demand I2 this month JJJJ.MM.TT hh:mm:ss APeak demand I3 this month JJJJ.MM.TT hh:mm:ss APeak demand I1 last month JJJJ.MM.TT hh:mm:ss APeak demand I2 last month JJJJ.MM.TT hh:mm:ss APeak demand I3 last month JJJJ.MM.TT hh:mm:ss Tab. 6.1: Display screens via the "V/I" button

* When the wiring mode is "DELTA", the display will be bypassed and does not appear. 36 PEM575_D00016_01_M_XXEN/05.2016 Operation 6.7.2 "POWER"button

Left column * P1 2 3 TOT *q1 2 3 TOT *S1 2 3 TOT *PF1 2 3 TOT d1 2 3 TOT d1 2 3 TOT d1 2 3 TOT Right column First line Second line Third line Fourth line W PL1* PL2* PL3* Pges var QL1* QL2* QL3* Qges VA SL1* SL2* SL3* Sges λL1* λL2* λL3* λges W PL1 (f0) PL2 (f0) PL3 (f0) Pges (f0) var QL1 (f0) QL2 (f0) QL3 (f0) Qges (f0) VA SL1 (f0) SL2 (f0) SL3 (f0) Sges (f0)

*dPF1 2 3 TOT W Displacement factor cos (φ)L1 f(0)* Displacement factor cos (φ)L2 f(0)* Displacement factor cos (φ)L3 f(0)* Displace ment factor cos (φ) f(0)

TOT Pges Qges Sges λges var VA

PEM575_D00016_01_M_XXEN/05.2016 37 Operation

Left column d Right column First line Second line Third line Fourth lineW TOT DMD TOT Pges (f0) Qges (f0) Sges (f0) λges (f0) var VA W Demand Pges Demand Qges Demand SgesDemand var λges VA

P DMD TOT P W var VA Predicted demand Pges Predicted demand Qges Predicted demand Sges Predicted demand λges

DMD MAX TM q DMD MAX TM S DMD MAX TM P DMD MAX LM Q DMD MAX LM S DMD MAX LM kW Peak demand P this month YYYY.MM.DD hh:mm:ss kvar Peak demand Q this month YYYY.MM.DD hh:mm:ss kVA Peak demand S this month YYYY.MM.DD hh:mm:ss kW Peak demand P last month YYYY.MM.DD hh:mm:ss kvar Peak demand Q last month YYYY.MM.DD hh:mm:ss kVA Peak demand S last month YYYY.MM.DD hh:mm:ss Tab. 6.2: Display possibilities via the "POWER" button

Note table 6.2: * When the wiring mode is "DELTA", the display will be bypassed and does not appear. 38 PEM575_D00016_01_M_XXEN/05.2016 Operation 6.7.3 "HARMONICS" button

Left column THD U1 2 3 AVG THD I1 2 3 AVG 1 2 3 U THD Even I THD Even U THD ODD I THD ODD HD2 U1 2 3 AVG HD2 I1 2 3 AVG HD3 U1 2 3 AVG Right column First line Second line Third line Fourth line % THDUL1 THDUL2 THDUL3 Ø THDULN % THDI1 THDI2 THDI3 Ø THDI k-factor I1 k-factor I2 k-factor I3 % TEHDUL1 TEHDUL2 TEHDUL3 Ø TEHDULN % TEHDI1 TEHDI2 TEHDI3 Ø TEHDI % TOHDUL1 TOHDUL2 TOHDUL3 Ø TOHDULN % TOHDI1 TOHDI2 TOHDI3 Ø TOHDI % 2nd 2nd 2nd Ø 2nd % 2nd 2nd 2nd harmonic I3 Ø 2nd harmonic I % 3rd 3rd 3rd Ø 3rd …

PEM575_D00016_01_M_XXEN/05.2016 39 Operation

Left column HD31 U1 2 3 AVG *HD31 I1 2 3 AVG Right column First line Second line Third line Fourth line% 31st 31st 31st Ø 31st % 31st 31st 31st harmonic I3 Ø 31st harmonic I Tab. 6.3: Display screens via the "HARMONICS" button

Note table 6.3: * The harmonics 32…63 can only be queried via the communication interface. 6.7.4 "ENERGY" button The "Energy" button switches through the displays of the fifth line: Left column Right column Value IMP kWh Active energy import EXP kWh Active energy export NET kWh Active energy net amount TOT kWh Total active energy IMP kvarh Reactive energy import EXP kvarh Reactive energy export NET kvarh Reactive energy net amount TOT kvarh Total reactive energy S kVAh Apparent energy Tab. 6.4: Display screens via the "ENERGY" button 40 PEM575_D00016_01_M_XXEN/05.2016 Operation 6.8 Setup configuration via the front panel Pressing the "ENERGY" button for more than 3 seconds enters the Setup configuration mode. Upon completion, pressing the "ENERGY" button for more than 3 seconds returns to the data display mode. A correct password must be entered before parameter changes are allowe (factory default password is 0). 6.8.1 Setup: Function of buttons The meanings of the buttons in the Setup mode are indicated below each button: "V / I": arrow button " " moves the cursor to the left by one position if the parameter being changed is a numerical value "POWER": arrow button " " advances to the next parameter in the menu or increments a numerical value "HARMONICS": arrow button " " goes back to the last parameter in the menu or decrements a numerical value "ENERGY": OK to confirm the value entered PEM575_D00016_01_M_XXEN/05.2016 41 Operation 6.8.2 Setup: Overview diagram menu The following diagram will help you to familiarise yourself with the menu. Serial number Date update UPDAT Protocol version PROVER

Info INFO Set time CLK Set date DAT Clear memory CLR SET Trigger mode digit. output DO SET Presetting energy values ENGY SET Presetting energy pulsing PULS SET Presetting demands DMD SET Ethernet parameter ETH SET Communications interface COM1 SET System settings SYS SET Change password PAS SET OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK OK Software version SW-VER Clear PQ memory CLR PQClear event memory CLR SOE Clear pulse counter CLR DIC Clear peak demand CLR PDMD Clear max/min values CLR MXMN Clear energy values CLR ENGY DO3 control DO3 Control DO2 control DO2 Control DO1 control DO1 Control Apparent energy S kVAh Reactive energy export EXP kvarh Reactive energy import IMP kvarh Active energy export EXP kWh Active energy import IMP kWh Set pulse constant EN CONST Activate energy pulsing EN PULSE Prognosis answer SENS Sliding Windows NUM Measuring period PERIOD Synchronisation mode MODE Gateway address (LoWord) GWL Gateway address (HiWord) GWH Subnet mask (LoWord) SML Subnet mask (HiWord) SMH Set IP address (LoWord) IPL IP address (HiWord) IPH Protocol PRO Parity bit CONFIG Set baud rate BAUD Set address ID Duration of display lighting BLTO SET Change polarity I3 I3 REV Change polarity I2 I2 REV Change polarity I1 I1 REV Nominal frequency Hz NOM Nominal system voltage V NOM Calculation method THD HD SET kVA calculation method KVA SET Power factor rule PF SET Neutral conductor current I4 CT transformation ratio CT Voltage transformer transf. ratio PT Select connection type TYPE Enter new password NEW PAS Enter password PASWORD PROGRAMMING ENERGY/OK > 3 s OK Device button

Fig. 6.7: Setup: Overview of setting options 42 PEM575_D00016_01_M_XXEN/05.2016 Operation 6.9 Setup: adjustment possibilities The table illustrates the display screens, their meaning and the adjustment possibilities.

Display screen Level 1 Level 2 Parameters Description Adjustment possibilities Default setting

PROGRAMMING Setup mode PASWORD Password Enter password / 0 PAS SET Change password? YES/NO NO NEW PAS New password Enter new password 0000…9999 0 SYS SET System settings YES/NO NO TYPE Wiring mode Select wiring mode WYE/DELTA/ DEMO WYE PT Voltage transfor merSelect voltage transfor mer transformation ratio 1…10,000 1

CT Measuring current transformers Select CT transformation ratio 1…30,000 (1 A) 1…6,000 (5 A) 1

I4 Neutral current Select CT transformation ratio for I41…10,000 1 PF SET Power factor rule Power factor rule* IEC/IEEE/-IEEE IEC KVA SET S calculation method ** V/S V HD SET Harmonic distortion calculation method *** FUND/RMS FUND V NOM Nominal voltage Unom (equals ULL) 100…700 (V) 100 Hz NOM Nominal frequency fnom 50/60 (Hz) 50 I1 REV I1 CT Reverse phase I1 CT polarity YES/NO NO PEM575_D00016_01_M_XXEN/05.2016 43 Operation

Display screen Level 1 Level 2 Parameters Description Adjustment possibilities Default setting

I2 REV I2 CT Reverse phase I2 CT polarity YES/NO NO I3 REV I3 CT Reverse phase I3 CT polarity YES/NO NO BLTO SET Display backlight Backlight timeout 0…60 (minutes) 3 COM 1 SET Configure communications interface YES/NO NO

ID1 Measuring device address Set address for measuring device 1…247 100 1200/2400/

BAUD1 Baud rate Set baud rate 4800/9600/ 19200 bps 9600

CONFIG1 Parity bit Parity bit configuration 8N2/8O1/8E1/ 8N1/8O2/8E2 8E1 PRO Protocol MODBUS/ EGATE Modbus ETH SET Configure Ethernet parameters YES/NO NO IPH IP address (HiWord) 192.168 IPL IP address (LoWord) 8.97 SMH Subnet mask (HiWord) 255.255 SML Subnet mask (LoWord) 255.0 GWH Gateway address (HiWord) 192.168 GWL Gateway address (LoWord) 8.1 DMD SET Demand measurement on/off YES/NO NO MODE Synchronisation mode demand SLD/SYNC SLD 44 PEM575_D00016_01_M_XXEN/05.2016 Operation

Display screen Level 1 Level 2 Parameters Description Adjustment possibilities Default setting PERIOD Sliding window interval NUM Demand cycles Set sliding window inter val Set the number of 1…99 (minutes) 15

(sliding windows) sliding windows 1…15 1

SENS Predicted demand sensitivity 70…99 70 PULS SET Set pulse output YES/NO NO

EN PULSE Energy pulsing Enable kWh and kvarh energy pulsing YES/NO NO

EN CONST Pulse constant Number of LED pulses per amount of energy 1K 1K ENGY SET Presetting of energy values YES/NO NO

IMP kWh Active energy import EXP kWh Active energy export IMP kvarh Reactive energy import EXP kvarh Reactive energy export Preset active energy import Preset active energy export Preset reactive energy import Preset reactive energy export 0… 999.999.999 0 0… 999.999.999 0 0… 999.999.999 0 0… 999,999,999 0

kVAh Apparent energy Preset apparent energy 0… 999,999,999 0 DO SET Change trigger mode for digital outputs YES/NO NO DO1 Operating mode

DO1 Set operating mode DO1 NORMAL/ON/ OFF DO2 Operating mode DO2 Set operating mode DO2 NORMAL/ON/ OFF NOR MAL NOR MAL

PEM575_D00016_01_M_XXEN/05.2016 45 Operation

Display screen Level 1 Level 2 Parameters Description Adjustment possibilities Default setting

DO3 Operating mode DO3 Set operating mode DO3 NORMAL/ON/ OFF NOR MAL

CLR SET Clear memory YES/NO NO CLR ENGY Clear energy values Clear kWh, kvarh and kVAh YES/NO NO CLR MXMN Clear Max and Min values of this month YES/NO NO CLR PDMD Clear peak demand values of this month YES/NO NO CLR DIC Clear pulse counter YES/NO NO CLR SOE Clear event log YES/NO NO CLR PQ Clear PQ log YES/NO NO DAT Date Set current date YY-MM-DD / CLK Time Set current time HH:MM:SS / Info Device information (read only) YES/NO NO SW-VER Software version / / PRO VER Protocol version (50 means V5.0) / / UPDAT Date of the latest software update yymmdd / / Serial number device / / Tab. 6.5: Setup adjustment possibilities 46 PEM575_D00016_01_M_XXEN/05.2016 Operation

Explanatory notes table 6.5 *Power factor λ rules Reactive power import Reactive power import

Quadrant 2 Power factor (-) Active power export (-) Reactive power import (+) Quadrant 3 Power factor (-) Active power export (-) Reactive power export (-) Quadrant 1 Power factor (+) Active power import (+) Reactive power import (+) Active power import Quadrant 4 Power factor (+) Active power import (+) Reactive power export (-) IEC Quadrant 2 Power factor (+) Active power export (-) Reactive power import (+) Quadrant 3 Power factor (-) Active power export (-) Reactive power export (-) Quadrant 1 Power factor (-) Active power export (+) Reactive power import (+) Active power import Quadrant 4 Power factor (+) Active power import (+) Reactive power export (-) IEEE

"IEEE" is the same as "-IEEE" but with the opposite sign. **There are two ways to calculate the apparent power S: Vector method V: Scalar method S:

Sges = Pges2 + Qges2 Choose the calculation method: V = Vector method S = Scalar method Sges = SL1 + SL2 + SL3

PEM575_D00016_01_M_XXEN/05.2016 47 Operation ***There are two ways to calculate the individual harmonic distortion:

FUND "Fundamental": THD calculation of an individual harmonic (related to THD U(k) = Uk U1x 100 % Ik

fundamental U1 resp. I1) THD I(k) = I1x 100 %

RMS "Root Mean Square": Distortion factor calculation of an individual harmonic (THF, related to the total value Uges resp. Iges) THFU(k) = THFI(k) = Uk ∞ Σ Uk 2 k = 1 Ik ∞ x 100 % x 100 %

I Σ k k = 1 2

48 PEM575_D00016_01_M_XXEN/05.2016 Operation 6.10 Configuration example: Setting the measuring current transformer ratio to 200 Button Display text Description OK > 3 s PROGRAMMING PASWORD **** OK PASWORD 0 0 flashes OK PASWORD 0 0 = factory setting PAS SET NO SYS SET NO OK SYS SET NO NO flashes or SYS SET YES YES flashes OK SYS SET YES TYPE WYE Factory setting PT 1 Factory setting CT 1 Factory setting OK CT 1 1 flashes (units place) CT 0 0 flashes (units place) CT 00 0 on the left flashes (tens place) CT 0 0 0 on the left flashes (hundreds place) CT 200 2 flashes OK CT 200 CT ratio 200 set OK > 3 s Standard display PEM575_D00016_01_M_XXEN/05.2016 49 Operation 50 PEM575_D00016_01_M_XXEN/05.2016 7. Application/inputs and outputs 7.1 Digital inputs (DI) The device features six digital inputs which are internally operated with DC 24 V. Digital inputs are typically used for monitoring external statuses. The real-time statuses of the digital inputs are available on the front panel LC display as well as through connected system components. Changes in external statuses are stored as events in the SOE log in 1 ms resolution. One of the digital inputs can be programmed to receive pulses for the synchronisation of the demand measurement. The setting is to be carried out via register 6021 (page 117). Digital inputs can also be used as external time synchronisation pulse (see page 84). 7.2 Digital outputs (DO) The device features three digital outputs. Digital outputs are typically used for setpoint alarming, load control or remote control applications. Examples: 1. Manually operated from the front panel (Chapter 6.8 Setup configuration via the front panel) 2. Operation via communications interface (Chapter 10.19 DOx output control). 3. Control setpoints: Control actions in response to a specific condition (Chapter 7.6 Setpoints) 4. Digital outputs triggered by logic modules (Chapter 10.12 Logic module). 5. Triggered by undervoltage or overvoltage (Chapter 9.4 Undervoltage/overvoltage setpoint (sag/swell setpoint)). 6. Triggered by transient events (Chapter 9.5 Transient events setpoint). 7. Control via digital inputs Priority: Front panel control has a higher priority and overwrites the other applications. PEM575_D00016_01_M_XXEN/05.2016 51 Application/inputs and outputs For a general alarm, all setpoints can be programmed to control the same digital output. However, if the user intends to generate a control signal in response to a specific setpoint condition, each DO may be controlled by only one source. 7.3 Energy pulsing output The two LED pulse outputs are used for kWh and kvarh indication, if the function EN PULSE is enabled. Energy pulsing can be enabled from the front panel through the EN Pulse setup parameter or via the communications interface. The LEDs flash each time a certain amount of energy is reached (1 kWh resp. 1 kvarh). In order to relate the flashing frequency to the amount of energy, the transformation ratios and the pulse constant have to be considered. Pulses per kWh = Pulse constant

Amount of energy ratio VT x ratio CT ratio VT x ratio CT = Note: VT = voltage transformer CT = measuring current

per pulse Pulse constant 7.4 Power and energy 7.4.1 Basic measurements transformer

The PEM575 provides the following basic measurements with a 1 second update rate: ● three-phase voltages ● three-phase currents ● three-phase power ● three-phase power factors λ ● Neutral current ● Frequency ● Energy import and export ● Voltage and current phase angles 52 PEM575_D00016_01_M_XXEN/05.2016 Application/inputs and outputs 7.4.2 High-speed measurements In addition to the basic measurements, the PEM575 provides the following high speed measurements: ● three-phase voltages (10 ms) ● three-phase currents (20 ms) ● three-phase power (20 ms) ● three-phase power factors λ (20 ms) ● Neutral current (20 ms) 7.4.3 Voltage and current phase angles Phase angle analysis is used to identify the angle relationship between the voltages and currents of the three line conductors. 7.4.4 Energy Basic energy parameters include ● active energy (import, export, net energy and total energy in kWh) ● reactive energy (import, export, net energy and total energy in kvarh) as well as reactive energy related to the quadrants Q1…Q4 ● apparent energy (Sges in kVAh) The maximum value to be displayed is ± 999,999,999,99. When the maximum value is reached, the register will automatically roll over to zero. The counter value can be edited via software or through the front panel, password required. 7.5 Demand DMD The demand is defined as an average consumption value over a fixed demand period. PEM575 supports the "Sliding windows" demand calculation; in addition to the demand period also the demand cycles, which are to be considered, are specified here. The following parameters can be set: ● Synchronisation mode – SLD internally synchronised to the PEM's clock – SYNC DI externally synchronised to a digital input that has been program med as a demand synchronisation input (DI function = SYNC DI) ● Demand cycles (1…15) PEM575_D00016_01_M_XXEN/05.2016 53 Application/inputs and outputs ● Demand period (1…99 min) Example of a total demand period: Demand cycles: 3 Demand period: 20 min Total demand period: 3 x 20 min = 60 min ● Predicted demand sensitivity SENS (70…99) Values are determined for present demand and predicted demand ● Voltages (U1, U2, U3, ØULN, UL1L2, UL2L3, UL3L1, ØULL) ● Currents (I1, I2, I3, Ø I, I4) ● Active power P (P1, P2, P3, Pges) ● Apparent power S (S1, S2, S3, Sges) ● Reactive power Q (Q1, Q2, Q3, Qges) ● Power factor λ (λ1, λ2, λ3, λges) ● Frequency ● Voltage unbalance ● Current unbalance ● Total harmonic distortion, voltage (THDU1, THDU2, THDU3) ● Total harmonic distortion, current (THDI1, THDI2, THDI3) The demand period can be set using the buttons on the front panel or via the communications interface. The following options are available: 1, 2, 3, 5, 10, 15, 30, 60 minutes In addition to the demand period also the demand cycles (sliding window) between 1 and 15 are to be specified. During the total demand period (duration multiplied by the number), the consumption resp. the imported power is measured. Then the average demand value is indicated on the display and output via the communications interface. The maximum demand value (peak demand) determined over the whole recording period will be saved and displayed. The peak demand can be reset manually. Setting possibilities: Chapter 6.9 Setup: adjustment possibilities. 54 PEM575_D00016_01_M_XXEN/05.2016 Application/inputs and outputs 7.5.1 Max/Min values per demand period The PEM575 records the min and max values of the following measurements for each demand period ● three-phase voltages ● three-phase currents ● three-phase frequencies ● three-phase power ● three-phase power factors λ ● Voltage unbalance ● Current unbalance ● Total harmonic distortion, voltage (THDU) ● Total harmonic distortion, current (THDI) All recorded measuring values can be accessed via the communications interface. 7.6 Setpoints The PEM575 features 24 user-programmable control setpoints (registers 6600…6839) which provide extensive control by allowing a user to initiate an action in response to a specific condition. The alarm symbol at the right side of the LC display is lit if there are any active setpoints. The first 16 setpoints (1…16) are standard setpoints, the other setpoints (17…24) are high-speed setpoints. Typical setpoint applications are alarming, fault location and power quality monitoring (PQ monitoring). Setpoints can be programmed via the communications interface. The following setup parameters are provided: 1. Setpoint type: Specifies the monitoring condition (over setpoint or under setpoint) or is disabled. 2. Setpoint parameters: Specifies the parameters to be monitored; for standard setpoints all parameters are available, for high-speed setpoints only the keys 1…14 apply. PEM575_D00016_01_M_XXEN/05.2016 55 Application/inputs and outputs Setpoints Key for setpoint Parameters Factor; Unit 1 ULN x 100; V 2 ULL x 100; V 3 I x 1000; A 4 I4 x 1000; A 5 Δ f x 100, Hz 6 Pges kW 7 Qges kvar 8 λ x 1,000 9 DI1Over setpoint

10 DI2 11 DI3 12 DI4 13 DI5 14 DI6 15 Reserved active limit: DI= 1 (close) inactive limit: DI = 0 (open) Under setpoint active limit: DI= 0 (open) inactive limit: DI = 1 (close)

16 Demand Pges kW 17 Demand Qges kvar 18 Demand λ x 1,000 19 Predicted demand Pges kW 20 Predicted demand Qges kvar 21 Predicted demand λ x 1,000 22 THDU x 100, % 23 TOHDU x 100, % 56 PEM575_D00016_01_M_XXEN/05.2016 Application/inputs and outputs Key for setpoint Parameters Factor; Unit 24 TEHDU x 100, % 25 THDI x 100, % 26 TOHDI x 100, % 27 TEHDI x 100, % 28 Unbalance U x 10, % 29 Unbalance I x 10, % 30 Δ U x 100, % Over setpoint active limit: negative phase sequence

31 Phase sequence inactive limit: positive phase sequence Under setpoint active limit: positive phase sequence inactive limit: negative phase sequence

Tab. 7.1: Setpoint parameters 3. Setpoint limit (active limit): Specifies the upper limits (over setpoint) resp. lower limits (under setpoint) that the setpoint parameter must exceed for over setpoint or go below for under setpoint for the setpoint to become active (response threshold). 4. Setpoint limit (inactive limit): Specifies the lower limits (under setpoint) resp. upper limits (over setpoint) that the setpoint parameter must go below for over setpoint or exceed for under setpoint for the setpoint to become inactive, e.g. back to normal state (release threshold). 5. Response delay: Specifies the minimum period that a limit value must have been violated before an action is triggered. Each status change of a setpoint generates an event that is stored in the event log. The response value for standard setpoints can be indicated in the range of 0…9.999 seconds. The response value for high-speed setpoints can be indicated in the range of 0…9.999 cycles. PEM575_D00016_01_M_XXEN/05.2016 57 Application/inputs and outputs 6. Delay on release: Specifies the minimum period that the setpoint return condition must have met before returning to normal condition. Each status change generates an event which is stored in the event log. The delay on release can be indicated for standard setpoints in the range of 0…9.999 seconds. The delay on release for high-speed setpoints can be indi cated in the range of 0…9.999 cycles. 7. Setpoint trigger: Specifies what action the setpoint will take when it becomes active. This action includes "No Trigger" and "Trigger DOx". Key Action Key Action 0 - 12 DR 9 1 DO1 13 DR 10 2 DO2 14 DR 11 3 DO3 15 DR 12 4 DR 1 16 DR 13 5 DR 2 17 DR 14 6 DR 3 18 DR 15 7 DR 4 19 DR 16 8 DR 5 20 WFR1 9 DR 6 21 WFR2 10 DR 7 22 Reserved 11 DR 8 Tab. 7.2: Setpoint trigger 58 PEM575_D00016_01_M_XXEN/05.2016 Application/inputs and outputs 7.7 Logic modules The PEM575 provides six programmable logic modules which perform AND, NAND, OR or NOR logical operations. Each logic module is capable of linking four different setpoint conditions with each other. Logical expression = {(source 1 [mode 1] source 2) [mode 2] source 3} [mode 3] source 4 The alarm symbol at the right side of the LC display appears when there are active logic modules. Logic modules are programmed via the communications interface. Details about the applied registers and their data structure you will find on page 127. The following setup parameters are provided: 1. Activating logic modules 2. Mode 1…3: Specifies the type of logical evaluation to be performed (AND, NAND, OR, NOR). 3. Source 1…4: Specifies the source inputs (table 10.30). 4. Trigger : Trigger 1 and Trigger 2 specify what action the logic module will take when it becomes active (table 10.31). PEM575_D00016_01_M_XXEN/05.2016 59 Application/inputs and outputs 60 PEM575_D00016_01_M_XXEN/05.2016 8. Logging 8.1 Peak demand log The PEM575 stores the demand data of the last month and this month with timestamp for I1, I2, I3, Pges, Qges and Sges. All values can be accessed through the front panel buttons as well as the communications interface. Data for this month can be deleted through the front panel buttons as well as the communications interface. 8.2 Max/Min log The PEM575 stores each new maximum and minimum value of this month and last month. Details about the applied registers and their data structure you will find on page 108. The stored values are listed in the table below. This month Last month Maximum values Minimum values Maximum values Minimum values UL1 max UL1 min UL1 max UL1 min UL2 max UL2 min UL2 max UL2 min UL3 max UL3 min UL3 max UL3 min Ø ULN max Ø ULN min Ø ULN max Ø ULN min UL1L2 max UL1L2 min UL1L2 max UL1L2 min UL2L3 max UL2L3 min UL2L3 max UL2L3 min UL3L1 max UL3L1 min UL3L1 max UL3L1 min Ø ULL max Ø ULL min Ø ULL max Ø ULL min I1 max I1 min I1 max I1 min I2 max I2 min I2 max I2 min I3 max I3 min I3 max I3 min Ø I max Ø I min Ø I max Ø I min I4max I4min I4max I4min PEM575_D00016_01_M_XXEN/05.2016 61 Logging This month Last month Maximum values Minimum values Maximum values Minimum valuesPges max Pges min Pges max Pges min Qges max Qges min Qges max Qges min Sges max Sges min Sges max Sges min λges max λges min λges max λges min f max f min f max f min THD UL1 max THD UL1 min THD UL1 max THD UL1 min THD UL2 max THD UL2 min THD UL2 max THD UL2 min THD UL3 max THD UL3 min THD UL3 max THD UL3 min THD I1 max THD I1 min THD I1 max THD I1 min THD I2 max THD I2 min THD I2 max THD I2 min THD I3 max THD I3 min THD I3 max THD I3 min (k-factor I1)max (k-factor I1)min (k-factor I1)max (k-factor I1)min (k-factor I2)max (k-factor I2)min (k-factor I2)max (k-factor I2)min (k-factor I3)max (k-factor I3)min (k-factor I3)max (k-factor I 3)min max. unbalance U min. unbalance U max. unbalance U min. unbalance U max. unbalance I min. unbalance I max. unbalance I min. unbalance I Tab. 8.1: Max/Min log for this month and last month 8.3 Data recorder (DR) PEM575 has an internal memory of 4 MB and provides ● 4 high speed data recorders ● 12 standard recorders Each of these recorders can record 16 parameters. The data recorders are programmed solely via the communications interface. 62 PEM575_D00016_01_M_XXEN/05.2016 Logging Details about the applied registers and their data structure you will find on page 129. 8.3.1 Setup parameters The following set-up parameters are supported: No. Parameters Setting 0 = disabled

1 Trigger mode 2 Recording mode 1 = triggered by timer 2 = triggered by setpoint Standard DR: 0 = stop-when-full 1 = FIFO (first-in-first-out) (ring memory) High speed DR: 1 = stop-when-full

3 Recording depth 0…65535 (entries) Standard DR:

4 Recording interval 0…3456000 seconds (40 days) High speed DR: 0…60 cycles

5 Recording delay1) 0…43200 seconds (12 h) 6 Number of measured vari ables 0…16

7 Parameters 1…16 (see table 8.3) Standard DR: 0…328 High speed DR: 0…28

Tab. 8.2: Setup data recorder Notes: table 8.2 The data recorder is only operational when the parameters 1…4 are all non-zero! 1) "Recording delay": PEM575_D00016_01_M_XXEN/05.2016 63 Logging In Trigger mode 1, a fixed time can be set in seconds to delay the start of the measurement (triggered by timer). Example: "300" means that the recording will take place at 5 minutes after the DR is enabled. In order to obtain evaluable results, the programmed value of the recording offset parameter should be less than that of the recording interval parameter. For Trigger mode 2, recording delay is ignored. For details refer to - Modbus register 7000…7383 (page 129). - Data structure high speed data recorder (page 131) - Data standard data recorder (page 132) 8.3.2 Selectable measured quantities for data recorders DR 16 measured quantities per data recorder can be selected from the table below: Key Measured quantities (data recorder) Factor/unit 0 UL1 x 100, V 1 UL2 x 100, V 2 UL3 x 100, V 3 Ø ULN x 100, V 4 UL1L2 x 100, V 5 UL2L3 x 100, V 6 UL3L1 x 100, V 7 Ø ULL x 100, V 8 I1 x 1,000, A 9 I2 x 1,000, A 10 I3 x 1,000, A 11 Ø I x 1,000, A 12 I4 (measured) x 1,000, A 13 PL1 W 14 PL2 W 15 PL3 W 16 Pges W 17 QL1 var 18 QL2 var 19 QL3 var 20 Qges var 21 SL1 VA 22 SL2 VA 64 PEM575_D00016_01_M_XXEN/05.2016 Logging Key Measured quantities (data recorder) Factor/unit23 SL3 VA 24 Sges VA 25 λL1 x 1,000 26 λL2 x 1,000 27 λL3 x 1,000 28 λges x 1,000 29 F x 100, Hz 30 Counter DI1 31 Counter DI2 32 Counter DI3 33 Counter DI4 34 Counter DI5 35 Counter DI6 36 Voltage unbalance x 1000 37 Current unbalance x 1000 38 k-factor I1 x 10 39 k-factor I2 x 10 40 k-factor I3 x 10 41 THDUL1 x 10,000 42 THDUL2 x 10,000 43 THDUL3 x 10,000 44 TOHDUL1 x 10,000 45 TOHDUL2 x 10,000 46 TOHDUL3 x 10,000 47 TEHDUL1 x 10,000 48 TEHDUL2 x 10,000 49 TEHDUL3 x 10,000 50 THDI1 x 10,000 51 THDI2 x 10,000 52 THDI3 x 10,000 53 TOHDI1 x 10,000 54 TOHDI2 x 10,000 PEM575_D00016_01_M_XXEN/05.2016 65 Logging Key Measured quantities (data recorder) Factor/unit55 TOHDI3 x 10,000 56 TEHDI1 x 10,000 57 TEHDI2 x 10,000 58 TEHDI3 x 10,000 59UL1 2nd harmonic x 10,000 60UL2 2nd harmonic x 10,000 61UL3 2nd harmonic x 10,000 62UL1 3rd harmonic x 10,000 63UL2 3rd harmonic x 10,000 64UL3 3rd harmonic x 10,000 65UL1 4th harmonic x 10,000 66UL2 4th harmonic x 10,000 67UL3 4th harmonic x 10,000 68UL1 5th harmonic x 10,000 69UL2 5th harmonic x 10,000 70UL3 5th harmonic x 10,000 71UL1 6th harmonic x 10,000 72UL2 6th harmonic x 10,000 73UL3 6th harmonic x 10,000 74UL1 7th harmonic x 10,000 75UL2 7th harmonic x 10,000 76UL3 7th harmonic x 10,000 77UL1 8th harmonic x 10,000 78UL2 8th harmonic x 10,000 79UL3 8th harmonic x 10,000 80UL1 9th harmonic x 10,000 66 PEM575_D00016_01_M_XXEN/05.2016 Logging Key Measured quantities (data recorder) Factor/unit81UL2 9th harmonic x 10,000 82UL3 9th harmonic x 10,000 83UL1 10th harmonic x 10,000 84UL2 10th harmonic x 10,000 85UL3 10th harmonic x 10,000 86UL1 11th harmonic x 10,000 87UL2 11th harmonic x 10,000 88UL2 11th harmonic x 10,000 89UL1 12th harmonic x 10,000 90UL2 12th harmonic x 10,000 91UL3 12th harmonic x 10,000 92UL1 13th harmonic x 10,000 93UL2 13th harmonic x 10,000 94UL3 13th harmonic x 10,000 95UL1 14th harmonic x 10,000 96UL2 14th harmonic x 10,000 97UL3 14th harmonic x 10,000 98UL1 15th harmonic x 10,000 99UL2 15th harmonic x 10,000 100UL3 15th harmonic x 10,000 101UL1 16th harmonic x 10,000 102UL2 16th harmonic x 10,000 103UL3 16th harmonic x 10,000 104UL1 17th harmonic x 10,000 105UL2 17th harmonic x 10,000 106UL3 17th harmonic x 10,000 PEM575_D00016_01_M_XXEN/05.2016 67 Logging Key Measured quantities (data recorder) Factor/unit107UL1 18th harmonic x 10,000 108UL2 18th harmonic x 10,000 109UL3 18th harmonic x 10,000 110UL1 19th harmonic x 10,000 111UL2 19th harmonic x 10,000 112UL3 19th harmonic x 10,000 113UL1 20th harmonic x 10,000 114UL2 20th harmonic x 10,000 115UL3 20th harmonic x 10,000 116UL1 21st harmonic x 10,000 117UL2 21st harmonic x 10,000 118UL2 21st harmonic x 10,000 119UL1 22nd harmonic x 10,000 120UL2 22nd harmonic x 10,000 121UL3 22nd harmonic x 10,000 122UL1 23rd harmonic x 10,000 123UL2 23rd harmonic x 10,000 124UL3 23rd harmonic x 10,000 125UL1 24th harmonic x 10,000 126UL2 24th harmonic x 10,000 127UL3 24th harmonic x 10,000 128UL1 25th harmonic x 10,000 129UL2 25th harmonic x 10,000 130UL3 25th harmonic x 10,000 131I1 2nd harmonic x 10,000 132I2 2nd harmonic x 10,000 68 PEM575_D00016_01_M_XXEN/05.2016 Logging Key Measured quantities (data recorder) Factor/unit133I3 2nd harmonic x 10,000 134I1 3rd harmonic x 10,000 135I2 3rd harmonic x 10,000 136I3 3rd harmonic x 10,000 137I1 4th harmonic x 10,000 138I2 4th harmonic x 10,000 139I3 4th harmonic x 10,000 140I1 5th harmonic x 10,000 141I2 5th harmonic x 10,000 142I3 5th harmonic x 10,000 143I1 6th harmonic x 10,000 144I2 6th harmonic x 10,000 145I3 6th harmonic x 10,000 146I1 7th harmonic x 10,000 147I2 7th harmonic x 10,000 148I3 7th harmonic x 10,000 149I1 8th harmonic x 10,000 150I2 8th harmonic x 10,000 151I3 8th harmonic x 10,000 152I1 9th harmonic x 10,000 153I2 9th harmonic x 10,000 154I3 9th harmonic x 10,000 155I1 10th harmonic x 10,000 156I2 10th harmonic x 10,000 157I3 10th harmonic x 10,000 158I1 11th harmonic x 10,000 PEM575_D00016_01_M_XXEN/05.2016 69 Logging Key Measured quantities (data recorder) Factor/unit159I2 11th harmonic x 10,000 160I2 11th harmonic x 10,000 161I1 12th harmonic x 10,000 162I2 12th harmonic x 10,000 163I3 12th harmonic x 10,000 164I1 13th harmonic x 10,000 165I2 13th harmonic x 10,000 166I3 13th harmonic x 10,000 167I1 14th harmonic x 10,000 168I2 14th harmonic x 10,000 169I3 14th harmonic x 10,000 170I1 15th harmonic x 10,000 171I2 15th harmonic x 10,000 172I3 15th harmonic x 10,000 173I1 16th harmonic x 10,000 174I2 16th harmonic x 10,000 175I3 16th harmonic x 10,000 176I1 17th harmonic x 10,000 177I2 17th harmonic x 10,000 178I3 17th harmonic x 10,000 179I1 18th harmonic x 10,000 180I2 18th harmonic x 10,000 181I3 18th harmonic x 10,000 182I1 19th harmonic x 10,000 183I2 19th harmonic x 10,000 184I3 19th harmonic x 10,000 70 PEM575_D00016_01_M_XXEN/05.2016 Logging Key Measured quantities (data recorder) Factor/unit185 I1 20th harmonic x 10,000 186 I2 20th harmonic x 10,000 187 I3 20th harmonic x 10,000 188 I1 21st harmonic x 10,000 189 I2 21st harmonic x 10,000 190 I2 21st harmonic x 10,000 191 I1 22nd harmonic x 10,000 192 I2 22nd harmonic x 10,000 193 I3 22nd harmonic x 10,000 194 I1 23rd harmonic x 10,000 195 I2 23rd harmonic x 10,000 196 I3 23rd harmonic x 10,000 197 I1 24th harmonic x 10,000 198 I2 24th harmonic x 10,000 199 I3 24th harmonic x 10,000 200 I1 25th harmonic x 10,000 201 I2 25th harmonic x 10,000 202 I3 25th harmonic x 10,000 203 Demand UL1 x 100, V 204 Demand UL2 x 100, V 205 Demand UL3 x 100, V 206 Ø Demand ULN x 100, V 207 Demand UL1L2 x 100, V 208 Demand UL2L3 x 100, V 209 Demand UL3L1 x 100, V 210 Ø Demand ULL x 100, V 211 Demand I1 x 1000, A PEM575_D00016_01_M_XXEN/05.2016 71 Logging Key Measured quantities (data recorder) Factor/unit212 Demand I2 x 1000, A 213 Demand I3 x 1000, A 214 Ø Demand I x 1000, A 215 Demand I4 1) x 1000, A 216 Demand PL1 W 217 Demand PL2 W 218 Demand PL3 W 219 Demand Pges W 220 Demand QL1 var 221 Demand QL2 var 222 Demand QL3 var 223 Demand Qges var 224 Demand SL1 VA 225 Demand SL2 VA 226 Demand SL3 VA 227 Demand Sges VA 228 Demand λ1 x 1000 229 Demand λ2 x 1000 230 Demand λ3 x 1000 231 Demand λges x 1000 232 Demand f x 100, Hz 233 Demand voltage unbalance x 1000 234 Demand current unbalance x 1000 235 Demand THDUL1 x 10,000 236 Demand THDUL2 x 10,000 237 Demand THDUL3 x 10,000 238 Demand THDI1 x 10,000 239 Demand THDI2 x 10,000 240 Demand THDI3 x 10,000 241 UL1 max (per demand period) x 100, V 72 PEM575_D00016_01_M_XXEN/05.2016 Logging Key Measured quantities (data recorder) Factor/unit242 UL2 max (per demand period) x 100, V 243 UL3 max (per demand period) x 100, V 244 Ø ULN max (per demand period) x 100, V 245 UL1L2 max (per demand period) x 100, V 246 UL2L3 max (per demand period) x 100, V 247 UL3L1 max (per demand period) x 100, V 248 Ø ULL max (per demand period) x 100, V 249 I1 max (per demand period) x 1000, A 250 I2 max (per demand period) x 1000, A 251 I3 max (per demand period) x 1000, A 252 Ø I max (per demand period) x 1000, A 253 I4 max (per demand period) x 1000, A 254 PL1 max (per demand period) W 255 PL2 max (per demand period) W 256 PL3 max (per demand period) W 257 Pges max (per demand period) W 258 QL1 max (per demand period) var 259 QL2 max (per demand period) var 260 QL3 max (per demand period) var 261 Qges max (per demand period) var 262 SL1 max (per demand period) VA 263 SL2 max (per demand period) VA 264 SL3 max (per demand period) VA 265 Sges max (per demand period) VA 266 λ1 max (per demand period) x 1000 267 λ2 max (per demand period) x 1000 268 λ3 max (per demand period) x 1000 269 λges max (per demand period) x 1000 270 f max (per demand period) x 100, Hz PEM575_D00016_01_M_XXEN/05.2016 73 Logging Key Measured quantities (data recorder) Factor/unit271 max. voltage unbalance (per demand period) x 1000 272 max. current unbalance (per demand period) x 1000 273 THDUL1 max (per demand period) x 10,000 274 THDUL2 max (per demand period) x 10,000 275 THDUL3 max (per demand period) x 10,000 276 THDI1 max (per demand period) x 10,000 277 THDI2 max (per demand period) x 10,000 278 THDI3 max (per demand period) x 10,000 279 UL1 min (per demand period) x 100, V 280 UL2 min (per demand period) x 100, V 281 UL3 min (per demand period) x 100, V 282 Ø ULN min (per demand period) x 100, V 283 UL1L2 min (per demand period) x 100, V 284 UL2L3 min (per demand period) x 100, V 285 UL3L1 min (per demand period) x 100, V 286 Ø ULL min (per demand period) x 100, V 287 I1 min (per demand period) x 1000, A 288 I2 min (per demand period) x 1000, A 289 I3 min (per demand period) x 1000, A 290 Ø I min (per demand period) x 1000, A 291 I4 min (per demand period) x 1000, A 292 PL1 min (per demand period) W 293 PL2 min (per demand period) W 294 PL3 min (per demand period) W 295 Pges min (per demand period) W 296 QL1 min (per demand period) var 297 QL2 min (per demand period) var 298 QL3 min (per demand period) var 299 Qges min (per demand period) var 74 PEM575_D00016_01_M_XXEN/05.2016 Logging Key Measured quantities (data recorder) Factor/unit300 SL1 min (per demand period) VA 301 SL2 min (per demand period) VA 302 SL3 min (per demand period) VA 303 Sges min (per demand period) VA 304 λ1 min (per demand period) x 1000 305 λ2 min (per demand period) x 1000 306 λ3 min (per demand period) x 1000 307 λges min (per demand period) x 1000 308 f min (per demand period) x 100, Hz 309 min. voltage unbalance (per demand period) x 1000 310 min. current unbalance (per demand period) x 1000 311 THDUL1 min (per demand period) x 10,000 312 THDUL2 min (per demand period) x 10,000 313 THDUL3 min (per demand period) x 10,000 314 THDI1 min (per demand period) x 10,000 315 THDI2 min (per demand period) x 10,000 316 THDI3 min (per demand period) x 10,000 317 UL1 (f0) / UL1L2 (f0) x 100, V 318 UL2 (f0) / UL2L3 (f0) x 100, V 319 UL3 (f0) / UL1L3 (f0) x 100, V 320 I1 (f0) x 1,000, A 321 I2 (f0) x 1,000, A 322 I3 (f0) x 1,000 A 323 Active energy import ges kWh 324 Active energy export ges kWh 325 Active energy ges kWh 326 Reactive energy import ges kvarh 327 Reactive energy export ges kvarh 328 Reactive energy ges kvarh PEM575_D00016_01_M_XXEN/05.2016 75 Logging Tab. 8.3: Selectable measured quantities, data recorder 8.4 Energy log The energy log stores the interval energy consumption for ● Active energy import ● Active energy export ● Reactive energy import ● Reactive energy export ● Apparent energy These measured values are stored in a non-volatile memory and will not suffer any loss in the event of power failure. For the recording of the total energy values such as Pges or Qges the data recorder has to be used. The programming of the energy log is only supported over communications. The following set-up parameters are supported: No. Parameters Setting 0 = disabled

1 Recording mode 1 = stop-when-full 2 = FIFO (First-In-First-Out)

2 Number of measure ments 0…65535 (entries) 0 = 5 min 1 = 10 min

3 Recording interval 2 = 15 min 3 = 30 min 4 = 60 min

4 Start time yy/mm/dd, hh:mm:ss 5 Number of parame ters0…5 0 = Import P 1 = Export P

6 Parameters 1…5 2 = Import Q 3 = Export Q 4 = S

Tab. 8.4: Setup energy log 76 PEM575_D00016_01_M_XXEN/05.2016 Logging The energy log will only become active when the values of the Setup settings 1…5 are all non-zero. For details refer to Modbus registers 7700…7712. 8.5 Waveform recording (WFR) The PEM575 provides two waveform recorders capable of recording waveforms independently from one another. The total capacity of WFR 1 and WFR 2 is 32. Each waveform recorder can simultaneously record 3-phase voltage and current signals at a maximum resolution of 256 samples per cycle. Waveform recorders can be triggered by ● Setpoints ● Undervoltage/overvoltage (sag/swell) ● Transient events ● Communications interface (manual) During this process the control via communications interface has the highest priority. Other WFR triggers will be ignored until recording is completed. Each WFR log has a capacity of 32 entries. If there are more than 32 entries, the newest entry will replace the oldest entry on a first-in-first-out basis: Der 33rd entry overwrites the 1st entry, the 34th the 2nd etc. WFR data is stored in a non-volatile memory and will not suffer any loss in the event of power failure. The programming of the waveform recorder log is only supported by the communications interface. For details about the applied registers and their data structure refer to page 133. The following set-up parameters are supported: No. Parameters Setting 1 Number of measurements 0…32 (entries) 2 Number of samples per cycle 16, 32, 64, 128, 256 samples 3 Cycles per record 320, 160, 80, 40, 20 cycles 4 Number of cycles before the event 0…10 cycles PEM575_D00016_01_M_XXEN/05.2016 77 Logging The total capacity of WFR1 and WFR 2 is 32 entries. The valid formats from the number of samples per cycle and number of cycles are: 16 x 320 32 x 160 64 x 80 128 x 40 256 x 20 When the WFR format is 256 samples per cycle, the "number of pre-fault cycles" can only be set between 0 and 5. Fig. 8.1: Waveform recording displayed in CP700 8.6 Power Quality log (PQ log) The PQ log can store up to 1,000 events such as undervoltage/overvoltage and transients. The newest event will replace the oldest event on a first-in-first-out basis: If there are more than 1000 entries, the 1001st entry will replace the first one, the 1002nd will replace the second one etc. Each entry includes the event classification, its relevant voltage values and a timestamp in 1 ms resolution. The PQ log can only be read via the communications interface. For details about the applied registers and their data structure refer to page 138. The PQ log can be reset from the front panel or via the communications interface. 78 PEM575_D00016_01_M_XXEN/05.2016 Logging 8.7 Event log (SOE log) The device can store up to 512 events. The newest event will replace the oldest event on a first-in-first-out basis: The 513th event overwrites the first event, the 514th the second one, etc. Possible events: ● Failure supply voltage ● Setpoint status change ● Relay actions ● Digital input status changes ● Setup changes Each event record includes the event classification, the relevant parameter values and a timestamp in 1 ms resolution. All event entries can be retrieved via the communications interface. For details about the applied registers and their data structure refer to page 139. The event log can be cleared using the buttons on the front panel or via communications interface. PEM575_D00016_01_M_XXEN/05.2016 79 Logging 80 PEM575_D00016_01_M_XXEN/05.2016


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