FREE ENGLISH MITSUBISHI ELECTRIC GT2103-PMBLS (01) PDF USER GUIDE
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What are the DANGER level design precautions for the GOT?
• Some failures of the GOT or cable may keep the outputs on or off. An external monitoring circuit should be provided to check for output signals which may lead to a serious accident. Not doing so can cause an accident due to false output or malfunction.
• Do not use the GOT as the warning device that may cause a serious accident. An independent and redundant hardware or mechanical interlock is required to configure the device that displays and outputs serious warning. Not doing so can cause an accident due to false output or malfunction.
• When the GOT detects its backlight failure, the GOT disables the input operation on the touch switch(s). Thus, operators cannot operate the GOT with touches. The GOT backlight failure can be checked with a system signal of the GOT.
• Even when the display section has dimmed due to a failure of the liquid crystal section or the backlight on the GOT, the input operation of the touch switches may still be enabled. This may cause an incorrect operation of the touch switches. For example, if an operator assumes that the display section has dimmed because of the screen save function and touches the display section to cancel the screen save, a touch switch may be activated. The GOT backlight failure can be checked with a system signal of the GOT.
• The display section of the GOT is an analog-resistive type touch panel. Simultaneous pressing of two or more areas on the display section may activate the switch between those areas. Do not press two or more areas simultaneously on the display section. Doing so may cause an accident due to incorrect output or malfunction.
• When programs or parameters of the controller (such as a PLC) that is monitored by the GOT are changed, be sure to shut off the power of the GOT promptly and power on the GOT again. Not doing so can cause an accident due to false output or malfunction.
• If a communication fault (including cable disconnection) occurs during monitoring on the GOT, communication between the GOT and PLC CPU is suspended and the GOT becomes inoperative. A system where the GOT is used should be configured to perform any significant operation to the system by using the switches of a device other than the GOT on the assumption that a GOT communication fault will occur. Not doing so can cause an accident due to false output or malfunction.
What are the CAUTION level design precautions for the GOT?
• Do not bundle the control and communication cables with main-circuit, power or other wiring. Run the above cables separately from such wiring and keep them a minimum of 100 mm apart. Not doing so noise can cause a malfunction.
• Do not press the GOT display section with a pointed material as a pen or driver. Doing so can result in a damage or failure of the display section.
• When the GOT is connected to the Ethernet network, the available IP address is restricted according to the system configuration.
► When multiple GOTs are connected to the Ethernet network: Do not set the IP address (192.168.3.18) for the GOTs and the controllers in the network.
► When a single GOT is connected to the Ethernet network: Do not set the IP address (192.168.3.18) for the controllers except the GOT in the network. Doing so can cause the IP address duplication. The duplication can negatively affect the communication of the device with the IP address (192.168.3.18). The operation at the IP address duplication depends on the devices and the system.
• Turn on the controllers and the network devices to be ready for communication before they communicate with the GOT. Failure to do so can cause a communication error on the GOT.
• When the GOT is subject to shock or vibration, or some colors appear on the screen of the GOT, the screen of the GOT might flicker.
What are the mounting precautions for the GOT?
DANGER MOUNTING PRECAUTIONS
Be sure to shut off all phases of the external power supply used by the system before mounting or removing the GOT main unit to/from the panel. Not doing so can cause the unit to fail or malfunction.
CAUTION MOUNTING PRECAUTIONS
• Use the GOT in the environment that satisfies the general specifications described in this manual. Not doing so can cause an electric shock, fire, malfunction or product damage or deterioration.
• When mounting the GOT to the control panel, tighten the mounting screws in the specified torque range (0.20 N•m to 0.25 N•m) with a Phillips-head screwdriver No.2. Undertightening can cause the GOT to drop, short circuit or malfunction. Overtightening can cause a drop, short circuit or malfunction due to the damage of the screws or the GOT.
• When mounting the SD card unit to the GOT, mount it on the side of the GOT, and tighten the tapping screws in the specified torque range (0.3 N·m to 0.6 N·m) with a Phillips-head screwdriver No. 2.
• Remove the protective film of the GOT. When the user continues using the GOT with the protective film, the film may not be removed.
• Operate and store the GOT in environments without direct sunlight, high temperature, dust, humidity, and vibrations.
• Do not use the GOT in an environment with oil or chemicals. Doing so may cause failure or malfunction due to the oil or chemical entering into the GOT.
What are the wiring precautions for the GOT?
DANGER WIRING PRECAUTIONS
• Be sure to shut off all phases of the external power supply used by the system before wiring. Failure to do so may result in an electric shock, product damage or malfunctions.
CAUTION WIRING PRECAUTIONS
• Please make sure to ground FG terminal of the GOT power supply section by applying 100Ω or less which is used exclusively for the GOT. Not doing so may cause an electric shock or malfunction.
• Correctly wire the GOT power supply section after confirming the rated voltage and terminal arrangement of the product. Not doing so can cause a fire or failure.
• Tighten the terminal screws of the GOT power supply section in the specified torque range (0.22 N•m to 0.25 N•m). Undertightening can cause a short circuit or malfunction. Overtightening can cause a short circuit or malfunction due to the damage of the screws or the GOT.
• Exercise care to avoid foreign matter such as chips and wire offcuts entering the GOT. Not doing so can cause a fire, failure or malfunction.
• Plug the communication cable into the GOT interface or the connector of the connected unit, and tighten the mounting screws and the terminal screws in the specified torque range. Undertightening can cause a short circuit or malfunction. Overtightening can cause a short circuit or malfunction due to the damage of the screws or unit.
What precautions should be taken during test operations and startup/maintenance?
DANGER TEST OPERATION PRECAUTIONS
• Before performing the test operations of the user creation monitor screen (such as turning ON or OFF bit device, changing the word device current value, changing the settings or current values of the timer or counter, and changing the buffer memory current value), read through the manual carefully and make yourself familiar with the operation method. During test operation, never change the data of the devices which are used to perform significant operation for the system. False output or malfunction can cause an accident.
DANGER STARTUP/MAINTENANCE PRECAUTIONS
• When power is on, do not touch the terminals. Doing so can cause an electric shock or malfunction.
• Before starting cleaning or terminal screw retightening, always switch off the power externally in all phases. Not doing so can cause the unit to fail or malfunction. Undertightening can cause a short circuit or malfunction.
• Overtightening can cause a short circuit or malfunction due to the damage of the screws or unit.
CAUTION STARTUP/MAINTENANCE PRECAUTIONS
• Do not disassemble or modify the unit. Doing so can cause a failure, malfunction, injury or fire.
• Do not touch the conductive and electronic parts of the unit directly. Doing so can cause a unit malfunction or failure.
• The cables connected to the unit must be run in ducts or clamped. Not doing so can cause the unit or cable to be damaged due to the dangling, motion or accidental pulling of the cables or can cause a malfunction due to a cable connection fault.
• When unplugging the cable connected to the unit, do not hold and pull from the cable portion. Doing so can cause the unit or cable to be damaged or can cause a malfunction due to a cable connection fault.
• Do not drop the module or subject it to strong shock. A module damage may result.
• Before touching the unit, always touch grounded metals, etc. to discharge static electricity from human body, etc. Not doing so can cause the unit to fail or malfunction.
What are the precautions for the touch panel and data storage?
CAUTION TOUCH PANEL PRECAUTIONS
• For the analog-resistive film type touch panels, normally the adjustment is not required. However, the difference between a touched position and the object position may occur as the period of use elapses. When any difference between a touched position and the object position occurs, execute the touch panel calibration.
• When any difference between a touched position and the object position occurs, other object may be activated. This may cause an unexpected operation due to incorrect output or malfunction.
DANGER PRECAUTIONS WHEN THE DATA STORAGE IS IN USE
• If the SD card mounted on drive A of the GOT is removed while the GOT is accessed, processing for the GOT might be interrupted about for 20 seconds. The GOT cannot be operated during this period. The functions that run in the background including a screen updating, alarm, logging, scripts, and others are also interrupted. Since this interruption makes an impact to the system operation, it might cause failure. After inhibiting access to the SD card on the GOT utility screen, check that the SD card access LED is off and remove the SD card.
CAUTION PRECAUTIONS WHEN THE DATA STORAGE IS IN USE
• If the data storage mounted on the GOT is removed while the GOT is accessed, the data storage and files are damaged. To remove the data storage from the GOT, check that the access to the data storage in SD card access LED, the system signal, and others is not performed.
• When removing the SD card from the GOT, make sure to support the SD card by hand as it may pop out. Failure to do so may cause the SD card to drop from the GOT, resulting in a failure or break.
• Before removing the SD card from the GOT, follow the procedure for removal on the utility screen of the GOT. After the successful completion dialog is displayed, remove the SD card by hand carefully. Failure to do so may cause the SD card to drop from the GOT, resulting in a failure or break.
How should the product be disposed of and transported?
CAUTION DISPOSAL PRECAUTIONS
• When disposing of this product, treat it as industrial waste.
CAUTION TRANSPORTATION PRECAUTIONS
• Make sure to transport the GOT main unit and/or relevant unit(s) in the manner they will not be exposed to the impact exceeding the impact resistance described in the general specifications of this manual, as they are precision devices. Failure to do so may cause the unit to fail. Check if the unit operates correctly after transportation.
• When fumigants that contain halogen materials such as fluorine, chlorine, bromine, and iodine are used for disinfecting and protecting wooden packaging from insects, they cause malfunction when entering our products. Please take necessary precautions to ensure that remaining materials from fumigant do not enter our products, or treat packaging with methods other than fumigation (heat method). Additionally, disinfect and protect wood from insects before packing products.
What are the general specifications for the GOT?
| Item | Specifications | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Operating Ambient Temperature *1 | 0 to 55°C (When mounted horizontally), 0 to 50°C (When mounted vertically) | ||||||||||||||||||
| Storage Ambient Temperature | -20 to 60°C | ||||||||||||||||||
| Operating Ambient Humidity | 10 to 90% RH, non-condensing *2 | ||||||||||||||||||
| Storage Ambient Humidity | 10 to 90% RH, non-condensing | ||||||||||||||||||
| Vibration Resistance |
|
||||||||||||||||||
| Shock Resistance | Compliant with JIS B3502 and IEC61131-2 147m/s² (15G) Three times in each X, Y, or Z direction | ||||||||||||||||||
| Operating Atmosphere | No greasy fumes, corrosive gas, flammable gas, excessive conductive dust, and direct sunlight (as well as at storage) | ||||||||||||||||||
| Operating Altitude *3 | 2000m (6562 ft.) max. | ||||||||||||||||||
| Installation Location | Inside control panel | ||||||||||||||||||
| Overvoltage Category *4 | II or less | ||||||||||||||||||
| Pollution Degree *5 | 2 or less | ||||||||||||||||||
| Cooling Method | Self-cooling | ||||||||||||||||||
| Grounding | Grounding with a ground resistance of 100Ω or less. If impossible, perform grounding to the control panel. *6 |
*1 The operating ambient temperature indicates the temperature inside the enclosure of the control panel to which the GOT is installed.
*2 If the ambient temperature exceeds 40°C, the absolute humidity must not exceed 90% at 40°C.
*3 Do not use or store the GOT under pressure higher than the atmospheric pressure of altitude 0 m. Doing so may cause a malfunction. When an air purge is made inside the control panel by adding pressure, there may be a clearance between the surface sheet and the screen, making you difficult to use the touch panel, or the sheet may come off.
*4 This indicates the section of the power supply to which the equipment is assumed to be connected between the public electrical power distribution network and the machinery within the premises. Category II applies to equipment for which electrical power is supplied from fixed facilities. The withstand surge voltage for the equipment with the rated voltage up to 300 V is 2500 V.
*5 This indicates the occurrence rate of conductive material in an environment where a device is used. Pollution degree 2 indicates an environment where only nonconductive pollution occurs normally and a temporary conductivity caused by condensation shall be expected depending on the conditions.
*6 Except 5V power supply type.
What are the performance specifications for the GT2103 models?
| Item | GT2103-PMBD, GT2103-PMBDS, GT2103-PMBDS2, GT2103-PMBLS | |
|---|---|---|
| Display Section *1, *2 | Display Device | TFT monochrome display |
| Screen Size | 3.8″ | |
| Resolution | 320 x 128 dots | |
| Display Size (WxH) | 89.0 x 35.6 (3.51 x 1.41) mm (inch) | |
| Display Character | 16-dot standard font: 20 characters x 8 lines (two-byte characters) 12-dot standard font: 26 characters x 10 lines (two-byte characters) |
|
| Backlight | Display Color | Monochrome (black and white) 32 scales |
| Brightness Adjustment | 32 levels | |
| Type | 5 colors LED (white, green, pink, orange, red) (Not replaceable) | |
| Life | Approx. 50000 h (operating ambient temperature: 25°C, display intensity: 50%) | |
| Touch Panel | Type | Analog resistive film |
| Key size | Minimum 2 x 2 dots (per a key) | |
| Simultaneous Press | Simultaneous press prohibited *5 (only 1 point can be pressed) | |
| Life *4 | 1 million times or more (Operating force: 0.98N or less) | |
| Memory | User Memory Capacity | Memory for storage (ROM): 3 MB |
| Life (Number of Write Times) | 100,000 times |
| Item | Built-in Interface | GT2103-PMBD | GT2103-PMBDS |
|---|---|---|---|
| RS-232 (Rear Face) | 1 channel Transmission speed: 115200/57600/38400 /19200/9600/4800 bps Connector shape: MINI-DIN6-pin (female) | ||
| RS-232 (Side Face) | |||
| RS-422/485 | 1 channel Transmission speed: 115200/57600/38400 /19200/9600/4800 bps Connector shape: terminal block 5-pin Terminating resistor *6: OPEN/110Ω/330Ω (Switched with the terminating resistor setting switch) | 1 channel Transmission speed: 115200/57600/38400/19200/9600/4800 bps Connector shape: terminal block 9-pin Terminating resistor *6: OPEN/110Ω/330Ω (Switched with the terminating resistor setting switch) | |
| RS-422 | |||
| Ethernet | 1 channel Data transfer method: 10BASE-T/100BASE-TX Connector shape: RJ-45 (modular jack) | ||
| USB (Device) | 1 ch | ||
| SD Card *7 | 1 channel SDHC card supported (max. 32 GB) | ||
| Buzzer Output | Single tone (tone length adjustable) | ||
| Environmental Protective Structure | Outside enclosure: IP67F *8 Inside enclosure: IP2X | ||
| External Dimensions (W x H x D) mm (in) | 113 x 74 x 32 mm (4.45 x 2.92 x 1.26) (inch) | 113 x 74 x 27 mm (4.45 x 2.92 x 1.07) (inch) *9 | |
| Panel Cutting Dimensions (W x H x D) | 105 x 66 (4.14 x 2.6) mm (inch) | ||
| Weight | 0.2 kg | 0.2 kg | |
| Compatible Software Package | GT Works3 Version1.112S or later (Sold separately) | ||
What are the power supply specifications for the GT2103 models?
| Item | GT2103-PMBD | GT2103-PMBDS |
|---|---|---|
| Input Power Supply Voltage | 24 VDC (+10%, -15%) | |
| Power Consumption | Under the Maximum Load: 2.6 W or less Backlight Off: 2.0 W |
Under the Maximum Load: 2.2 W or less Backlight Off: 1.6 W |
| Inrush Current | 30 A or less (1ms, 25°C, at the maximum load) | |
| Permissible Instantaneous Power Failure Time | Within 5ms | |
| Noise Immunity | Noise voltage: 1000 Vp-p, Noise width: 1 µs (by noise simulator of 30 to 100 Hz noise frequency) | |
| Dielectric Withstand Voltage | 500 VAC for 1 minute (between the GOT’s power supply terminals and the GOT’s grounding terminal) | |
| Insulation Resistance | 10 MΩ or larger by insulation resistance tester (between the GOT’s power supply terminals and the GOT’s grounding terminal) | |
| Electrical Wire Size | No. of wire per terminal: 1 Solid wire 0.14 to 1.5 mm² AWG26 to AWG16, Stranded wire 0.14 to 1.0 mm² AWG26 to AWG16, Ferrules with plastic sleeve 0.25 to 0.5 mm² AWG24 to AWG20 No. of wire per terminal: 2 Solid wire 0.14 to 0.5 mm² AWG26 to AWG20, Stranded wire 0.14 to 0.2 mm² AWG26 to AWG24 |
|
| Applicable Solderless terminal | Solderless terminal for M3 screw RAV1.25-3, V2-N3A, FV2-N3A | |
| Ferrules with Plastic Sleeve | AI 0.25-6BU (AWG24), AI 0.34-6TQ (AWG22), AI 0.5-6WH (AWG20) (Phoenix Contact Inc.) | |
| Crimper type | CRIMPFOXZA3 (Phoenix Contact Inc.) | |
| Tightening torque (terminal screws) | 0.22 to 0.25 N·m | |
What are the panel cutting dimensions for the GT2103-P?
| Model | A | B | C | Panel Thickness |
|---|---|---|---|---|
| GT2103-P | 105 (4.14) (+1 (0.04), 0 (0)) | 66 (2.60) (+1 (0.04), 0 (0)) | 13 (0.52) or more | 1 (0.04) to 4 (0.16) |
What are the required installation positions and clearances for the GT2103-P?
Depending on the units and cables used for the GOT, the distance more than the described dimensions may be required. Install the GOT with consideration of the connector dimensions and the cable bend radius. For the vertical installation, install the GOT so that the power supply terminal, which is located on the GOT rear face, is at the lower side.
| Item | GT2103-P | |
|---|---|---|
| A | 50 (1.97) or more [20 (0.79) or more] | |
| B | When the SD card is used | 50 (1.97) or more |
| C | When the SD card is not used | 50 (1.97) or more [20 (0.79) or more] |
| D | 50 (1.97) or more | |
| E *1 | 80 (3.15) or more [20 (0.79) or more] |
*1 When an RS-232 cable or personal computer connection cable is connected to the rear face of GT2103-PMBDS, or GT2103-PMBDS2, a distance of 80 mm (3.15 inches) or more is required.
How do I install the GOT into a control panel?
Install the GOT in the following procedure. For the vertical installation, install the GOT so that the power supply terminal, which is located on the GOT rear face, is at the lower side.
CAUTIONS FOR AN INSTALLATION PANEL: Use a panel that has no warpage, damage, and unevenness on its surface. Failure to do so may not result in waterproof effect. Determine the panel thickness considering the panel strength. (For example, even though the panel has thickness within the range, the strength may be insufficient depending on the material and size. Insufficient panel strength may result in warpage depending on the installation position of the GOT and other devices.)
1. Install a packing to the packing installation groove on the GOT rear face.
2. Insert the GOT rear face into the panel opening.
3. Insert the hook of an installation fitting (supplied) into the mounting hole of the GOT. Slide the installation fitting toward the GOT rear face. Then, viewing from the GOT rear face, slide the fitting to the left to fix, and tighten a screw within the specified torque range (0.20 N•m to 0.25 N•m). Fix the GOT using 4 fittings at the top and the bottom of the GOT.
CAUTIONS FOR THE GOT INSTALLATION: Tighten mounting screws within the specified torque range. Undertightening can cause the GOT to drop. In addition, waterproof effect or oilproof effect may not be obtained. Tightening the screw in the specified torque range or more may damage the GOT or distort the panel, causing wrinkles on the surface of the display section. The wrinkles may lower visibility and lead to an incorrect input to the touch panel. Waterproof effect or oilproof effect may not be obtained because of distortion of the GOT or panel.
4. The GOT in the factory shipment state has a protective film on the display section. After installing the GOT, remove the film.
How do I remove the GOT from the panel?
1. Remove the mounting screws of the installation fitting on the GOT in the following order 1) to 3). Remove the installation fitting on the GOT.
2. Remove the GOT from the panel opening.
How do I install and remove an SD card?
INSTALLING THE SD CARD
Before inserting an SD card, turn off the GOT or select [Access inhibit] in the SD card access setting of the GOT.
1. Touch [Utility main menu] → [Data control] → [SD card access] → [Permissions], and select [Access inhibit]. Check that the SD card access LED turns off. When the LED is off, the SD card can be inserted at the GOT power-on.
2. Open the SD card cover, and insert the SD card with its front side (name plate side) facing outward. Close the SD card cover.
3. Touch [SD card access] → [Access inhibit], and select [Permissions]. Check that the SD card access LED turns on.
REMOVING THE SD CARD
DANGER: If the SD card mounted on drive A of the GOT is removed while the GOT is accessed, processing for the GOT might be interrupted for about 20 seconds. This stop affects the system operation, causing an accident. Before removal, disable the SD card access in the GOT utility, and then check that the SD card access LED is off.
CAUTION: If the data storage is removed while the GOT is accessed, the data and files are damaged. Check that access to the data storage is not performed before removal. Turning off the GOT while it accesses the SD card results in damage to the SD card and files.
1. Touch [Utility main menu] → [Data control] → [SD card access] → [Permissions], and select [Access inhibit].
2. Open the SD card cover, and remove the SD card.
CAUTION for removing the SD card: While the SD card access LED is on, do not remove the SD card or power off the GOT. Doing so results in damage to the SD card and files. When removing the SD card from the GOT, make sure to hold the SD card as it may pop out.
What are the general preventive measures against noise when wiring?
There are two kinds of noises: Radiated noise that is transmitted into the air and Conductive noise that is directly transmitted along connected lines. Countermeasures must be taken considering both kinds of noises and referring to the following 3 points.
1. Protecting against noise
► Keep signal lines away from noise sources such as a power cable or a high-power drive circuit.
► Shield the signal lines.
2. Reducing generated noise
► Use a noise filter, etc. to reduce the level of the noise generated due to a source such as a high-power motor drive circuit.
► Attach a surge suppressor on the terminal of the molded case circuit breaker (MCCB), electromagnetic contactor, relay, solenoid valve, or induction motor to supress the noise.
3. Releasing noise to the ground
► Make sure to connect the ground cable to the ground.
► Use a short and thick cable to lower its ground resistance.
► Ground the power system and the control system separately.
What is the outline procedure to start the GOT?
PREPARING PROJECT DATA
1. Install GT Designer3 Version1 on the personal computer.
2. Create project data with GT Designer3 Version1.
INSTALLING OPTION UNIT
1. Install options other than the SD card and USB memory to the GOT.
INSTALLING THE GOT, AND POWER SUPPLY WIRING
1. Install the GOT to the control panel.
2. Carry out wiring of power cables for the GOT.
WRITING PACKAGE DATA
Write package data with GT Designer3 Version1. The writing procedure differs depending on the data writing method.
CONNECTING THE GOT AND THE CONTROLLER
1. Check the communication settings in the utility screen of the GOT.
2. Turn off the power of the GOT.
3. Connect the GOT and controller with a cable.
STARTING MONITORING
1. Turn on the GOT and the connected system.
2. The GOT starts monitoring.
How do I write package data to the GOT?
WRITING PACKAGE DATA DIRECTLY FROM A PERSONAL COMPUTER TO THE GOT
1. Connect the personal computer and GOT.
• USB: Connect the USB interface (Device) and the USB port of the personal computer with a USB cable.
• Ethernet: Connect the Ethernet interface and the Ethernet port of the personal computer with an Ethernet cable. To write the package data to the GOT by Ethernet, install the basic software to the GOT and configure the communication settings in advance.
• Via PLC: Connect the GOT and the personal computer via the PLC connected to the GOT.
2. Turn on the GOT.
3. Write the package data with GT Designer3 Version1.
WRITING PACKAGE DATA FROM THE DATA STORAGE TO THE GOT
1. Install a data storage such as an SD card to the personal computer.
2. Write the package data to the data storage with GT Designer3 Version1.
3. Install the data storage to the GOT.
• SD card (A drive): Insert the card to the SD card interface.
• USB memory (Drive B): Insert the memory to the USB interface (Host).
• Other data storage (Drive B to drive G): Connect the storage to the USB interface (Host).
4. Turn on the GOT.
• To start the GOT with the built-in flash memory (Drive C), write the package data to the built-in flash memory (Drive C) of the GOT.
• To start the GOT with the data storage (Drive A, B, D to G), writing the package data to the built-in flash memory (Drive C) of the GOT is not required.
What should I do if the GOT cannot be started?
The GOT cannot be started in any of the following conditions. Take the following corrective actions, and turn on the GOT again.
| Condition | Corrective Action |
|---|---|
| The type of the physical GOT differs from the GOT type of the package data stored in the SD card. | Prepare the SD card that stores the package data containing the GOT type same as the GOT to be used. |
| The GOT has insufficient memory. | Delete unnecessary data in the memory of the GOT. |
What are the daily inspection items for the GOT?
| Item | Inspection Item | Inspection Method | Criterion | Corrective Action | |
|---|---|---|---|---|---|
| 1) | GOT installation status | Check for loose screws. | Securely tightened | Retighten screws with the specified torque. | |
| 2) | Connection status | Loose terminal screws | Retighten screws with a screwdriver. | Not loose | Retighten terminal screws. |
| Proximity of solderless terminals | Visual check | Proper intervals | Correct intervals. | ||
| Loose contactors | Visual check | Not loose | Retighten contactor fixing screws. | ||
| 3) | Usage status | Dirt on the protective sheet | Visual check | Not outstanding | Replace the sheet with a new sheet. |
| Foreign material adherence | Visual check | No foreign matter adherence | Remove and clean the foreign material. |
What are the periodic inspection items for the GOT?
Inspect the following items half-yearly or yearly, or when moving or modifying equipment, or changing wiring.
| No. | Inspection Item | Inspection Method | Criterion | Action | |
|---|---|---|---|---|---|
| 1 | Surrounding environment | Ambient temperature | Make measurement with thermometer or hygrometer | Display section 0 to 50°C Other portions 0 to 55°C |
For use in control panel, temperature inside control panel is ambient temperature. |
| Ambient humidity | 10 to 90%RH | ||||
| Atmosphere | Measure corrosive gas | No corrosive gas | |||
| 2 | Power supply voltage check | Measure 24VDC voltage across terminals. | 20.4 to 26.4VDC | Change supply power | |
| 3 | Change supply power | Looseness | Visual check | ||
| Dirt, foreign matter | No dirt, foreign matter sticking | Remove, clean | |||
| 4 | Connection status | Loose terminal screws | Retighten screws with screwdriver | Not loose | Retighten connector fixing screws |
| Proximate solderless terminals | Visual check | Proper intervals | Correct | ||
| Loose connectors | Visual check | Not loose | Retighten connector fixing screws | ||
| 5 | Battery | Check the voltage status of the GOT built-in battery | No alarm displayed | Replace with new battery when the current battery has reached the specified life span, even if battery voltage is not displayed. |
How should the GOT screen be cleaned?
Use the GOT always in a clean condition. To clean the GOT, wipe the dirty part with a soft cloth using neutral detergent or ethanol.
Precautions for screen cleaning:
Do not use solvents such as acetone, benzene, toluene, and alcohol. Solvents may deform the protective sheet or peel the dissolvable paint on the surface. In addition, do not use spray solvents. Doing so may cause an electrical failure of the GOT and peripheral devices.
What should I do if the GOT does not operate normally? (GOT Status Check)
| Phenomenon | Cause/Status | Action |
|---|---|---|
| (A) Frequency that the GOT does not operate, an error occurs on the screen, etc. | ||
| ☐ Occurs always. ☐ Occurs sometimes. |
Occurrence frequency: ( ) Example: Once a month |
Proceed to (1)-(b). |
| (B) Checking of the displayed error code (system alarm) | ||
| ☐ Can be checked. ☐ Cannot be checked. |
Error code (system alarm): ( ) Example: 460 Communication unit error |
Take the action for the error code (system alarm) or error message checked. If the status does not change after the action is taken, proceed to (1)-(c). Proceed to (1)-(c). |
| (C) Screen Display | ||
| ☐ The screen is completely black. | The liquid crystal display or BootOS may be faulty. | Perform the following in order. 1) Reinstalling BootOS 2) Reinstalling standard monitor OS. If the GOT is not restored by 1) and 2), perform the following. 3) Reinstalling CoreOS and then standard monitor OS. If the GOT is not restored by the above operations, proceed to (5) Troubled product investigation. |
| ☐ The screen is completely white. | The GOT hardware may be faulty. | |
| ☐ A line is displayed on the screen. ☐ Other faulty displays |
The GOT hardware may be faulty. Example: A vertical line is displayed. | |
| ☐ The screen freezes. | The screen display is not updated and any operation is not allowed. | Proceed to (1)-(e). |
| (D) Buzzer Sound | ||
| ☐ Does not sound. ☐ Continues to beep randomly. ☐ Continues to beep in a particular pattern. |
Buzzer sound: ( ) Example: The rhythm as three beeps, one beep, and then two beeps is repeated. |
Proceed to (2) Status of the GOT when it freezes. |
| ☐ Beeps continuously. | The read device of the system information may have turned ON when the device was set, turning ON the Buzzer output signal. | Check the setting of the read device. When the Buzzer output signal has no error, proceed to (2) Status of the GOT when it freezes. |
What should I do if the GOT screen freezes or operation stops?
| Phenomenon | Cause/Status | Action |
|---|---|---|
| (A) Switching to the utility | ||
| ☐ Enabled | Error code (system alarm): ( ) Example: 460 Communication unit error |
When the system alarm display function can be used, take the action for the error code (system alarm) displayed. If the action cannot be taken, proceed to (2)-(b). |
| ☐ Disabled | The system alarm display function cannot be used. | Proceed to (2)-(c). |
| (B) Executing of I/O check from the GOT utility | ||
| ☐ Communication error | Display details: ( ) Example: A message indicating the cause may be a connection error was displayed. |
Take the action for the error code (system alarm) or error message checked. If the status does not change after the action is taken, proceed to (1)-(c). |
| ☐ No error | The hardware such as a communication interface has no error. | Proceed to (3) Status of the PLC CPU. |
| (c) Objects not displayed on the monitor screen | ||
| ☐ Found ☐ Not found |
Details: ( ) Example: The numerical display object is not displayed. |
Proceed to (3) Status of the PLC CPU. |
What should I check in case of a PLC CPU failure?
| Phenomenon | Cause/Status | Action |
|---|---|---|
| ☐ Occurs always. | An error such as CONTROL-BUS. ERROR or SP. UNIT LAY. ERROR may have occurred. Error code (system alarm): ( ) Example: 1204 CPU H/W fault |
Proceed to the following. |
| ☐ Occurs sometimes. | The system alarm display function cannot be used. The PLC CPU may be influenced by noise or the hardware may be faulty. Occurrence frequency: ( ) Example: Once a month |
Proceed to (2)-(c). |
| ☐ Operates normally. | Error code (system alarm): ( ) Example: 1204 CPU H/W fault |
Proceed to (4) GOT restoration procedure. |
What is the step-by-step GOT restoration procedure?
Follow the procedures below starting from (A) and in order to check if the GOT is restored. If the GOT is not restored, proceed to the next item.
| Phenomenon | Cause/Status | Action |
|---|---|---|
| (A) Press the GOT reset switch. | The GOT may have malfunctioned temporarily due to noise. | Take the action of (4)-(h). |
| (B) Power the GOT ON/OFF.*1 | ||
| (C) Reset or power ON/OFF the PLC CPU. | ||
| (D) Power the GOT and PLC CPU ON/OFF simultaneously. | ||
| (E) Connect the cable again. | The cable connection may be faulty. | Securely connect the cable. If an error occurs again, proceed to (5) Troubled product investigation. |
| (F) Reinstall the project data. | Data may have been destroyed by an action such as powering the GOT OFF during the installation of project data or OS. | Do not power the GOT OFF while transferring data. If an error occurs again, proceed to (5) Troubled product investigation. |
| (G) Reinstall the OS. | ||
| (H) Take the action described in the “Action” column. | The GOT may have malfunctioned temporarily due to noise. | Take the action with referring to GOT installation status check sheet. |
| (I) The GOT is not restored even by performing (A) to (H). | Proceed to (5) Troubled product investigation. |
*1 When powering the GOT ON again (OFF→ON), power OFF the PLC before that.
How do I troubleshoot wiring and grounding issues?
(1) Panel inside wiring: Check if the power line connected to the power or servo amplifier and the communication cable are mixed in the duct. If they are, wire them separately to reduce the influence of noise.
(2) Panel outside wiring: Check if the power line and communication cable are installed together. If they are, lead them separately from different places to the outside of the control panel or use a metal separator in the duct to reduce noise.
(3) Wiring of GOT’s FG cable and power line: Check if the FG cable and power line of the GOT are installed together. If so, separating them can reduce noise.
(4) Surge measures: Check if a surge suppressor is used for the wiring of loads like contactors, relays, or motors. If not, attaching a surge suppressor close to the load can reduce the influence of surge on the GOT.
(5) Installation status: Check if the FG cables of control equipment (like a PLC) and power equipment (like a servo amplifier) are connected to a single point. Perform independent grounding at two separate places to reduce noise. If not possible, perform shared grounding.
(6) Grounding status of the control panel: Check if a single ground cable is led from the control panel having the control equipment to the control panel having the GOT. Connect the ground cable to the control panel having the GOT using a short and thick wire. For further noise reduction, attach a ferrite core (e.g., KITAGAWA INDUSTRIES CO.,LTD. RFC-H13) to the ground cable.
(7) Power supply system: Check if power for the GOT, I/O equipment, and power equipment is supplied from the same system. If so, separately wire the power for each and connect an isolation transformer to reduce noise.
How do I check for and identify errors?
How to identify the error position
• Identify the error position, modify the sequence program or replace the module where the error occurs, and check whether the error occurs again.
• If the error occurs again, other causes are considered.
Checking the error in the PLC
1. Check the type of the error detected in the PLC using GX Works2 or others.
2. Check each module and the installation and grounding status of the cables according to the error message on the PLC CPU.
► Checking the error occurrence timing
► Check the timing of the error occurrence.
Checking the error occurrence timing
► An error occurs when the power is turned on or immediately after the PLC is reset. The error may be detected in the initial process of the PLC CPU. In this case, since the faulty module cannot be usually identified, set only the END instruction in the sequence program and remove the modules one by one. When the error is eliminated after a specific module has been removed, the module may have caused the error.
► An error occurs after or several seconds after a specific operation. The error may occur in the sequence program. Check the error step where the error may occur and the sequence program in the step. You can determine whether the whole sequence program has a problem by setting only the END instruction in the sequence program.
► An error occurs when a specific device operates. A malfunction caused by noise is considered. Check if any signal line such as a bus connection cable is not installed close to the operating device. If the line is close to the device, keep a distance of 100 mm or more between the line and the device.
How are error messages and system alarms displayed on the GOT?
As the error code and error message displaying functions when an error occurs at the GOT, controller or network, there are two kinds: system alarm and advanced system alarm.
Error code and channel No.
• Error codes can also be confirmed in the error code storage area of the system information function.
• The channel No. where an error is occurring can be confirmed with the GOT special register (GS262 to 264).
Error contents display
• Popup-displaying the error code and error message (Advanced alarm popup display (System alarm)): If an error occurs, the error code and error message can be popup-displayed on the front of the monitor screen. As alarms are popup-displayed regardless of the screen type, the error occurred will not be overlooked.
• Displaying error code and error message in a list (Advanced system alarm display): If an error has occurred, the error code and error message can be displayed on the list set with the screen. Multiple errors can be displayed, or the history of display can be recorded.
Checking error messages with the utility (Utility): The error code and error message can be checked with the system alarm display of the utility when the object is not set.
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