PFEIFFER TC 400 (01) PDF Document

The following abbreviations are used in the documentation for the PFEIFFER TC 400 Electronic drive unit:

To avoid danger to life from electric shock, the power supply pack for the PFEIFFER TC 400 must meet the following requirements:

• Make sure that the power supply pack meets the requirements for double isolation between mains input voltage and output voltage, in accordance with IEC 61010-1, IEC 60950-1 and IEC 62368-1.

• Where possible, use original power supply packs or only power supply packs that correspond with the applicable safety regulations.

When handling the PFEIFFER TC 400, observe the following general safety precautions:

• Use only power supply packs that comply with the applicable safety regulations.

• Observe all applicable safety and accident prevention regulations.

• Check that all safety measures are observed at regular intervals.

• Recommendation: Establish a secure connection to the earthed conductor (PE); protection class III.

• Never disconnect plug connections during operation.

• Keep lines and cables away from hot surfaces (> 70 °C).

• Do not carry out your own conversions or modifications on the unit.

• Observe the unit protection class prior to installation or operation in other environments.

• Observe the protection class by ensuring the correct seating of the present sealing plugs.

• Disconnect the electronic drive unit only once everything has come to a complete standstill and when the mains power supply of the turbopump is interrupted.

The PFEIFFER TC 400 should be operated within the following ambient conditions:

Improper use of the PFEIFFER TC 400 invalidates all warranty and liability claims. Any use that is counter to the purpose of the product, whether intentional or unintentional, is regarded as misuse. This includes:

• Connection to power supplies that do not comply with the provisions of IEC 61010 or IEC 60950.

• Operation with excessively high irradiated heat output.

• Use in areas with ionizing radiation.

• Operation in explosion-hazard areas.

• Use of accessories or spare parts that are not listed in these instructions.

The connections on the PFEIFFER TC 400 electronic drive unit are as follows:

To connect a remote control to the “remote” connector of the PFEIFFER TC 400:

1. Remove the remote plug from the electronic drive unit and connect a remote control.

2. Use screened plugs and cables.

3. Fasten the remote control to the connector “remote”. The tightening torque on the spacer bolts of the sub-D socket is 0.25 – 0.3 Nm.

The terminal lay-out of the 26-pin “remote” connection is as follows:

The digital inputs at the ‘remote’ connection of the PFEIFFER TC 400 are used to switch various functions. The factory assignments are as follows:

• DI1 (release venting)/pin 2:
V+: Enable venting (venting as per venting mode)
open: Venting blocked (no venting occurs)

• DI motor vacuum pump/pin 3:
V+: Turbo pump motor on
open: Turbo pump motor off

• DI pumping station/pin 4:
V+: Error acknowledgement and pumping station on
open: Pumping station off

• DI standby/pin 5:
V+: Standby activated
open: Standby off, operation at nominal rotation speed

• DI2 (heater)/pin 6:
V+: Heater on
open: Heater off

• DI3 (sealing gas)/pin 10:
V+: Sealing gas valve open
open: Sealing gas valve closed

• DI error acknowledgment/pin 13:
V+: Pending error messages reset when cause has been eliminated with a pulse of min. 500 ms duration
open: Inactive

• DI remote priority/pin 14:
V+: The “remote” connection has control priority over all other digital inputs.
open: Remote priority inactive

The outputs and relays at the ‘remote’ connection of the PFEIFFER TC 400 have the following factory-set functions:

Digital Outputs (max load 24 V/50 mA per output):

• DO1 (rotation speed switch point reached)/pin 8: Active high after reaching the rotation speed switchpoint (factory setting is 80% of nominal rotation speed).

• DO2 (no error)/pin 9: Permanently outputs 24 V DC (“no error”). Active low in case of an error.

• DO remote priority active/pin 23: Active high when the “remote” connection has priority. Active low ignores the “remote” connection.

Analog Output:

• AO1 analog output 0 to 10 V DC/pin 12: Outputs a speed-proportional voltage (0-10 V DC equals 0-100% of nominal frequency). Load R ≥ 10 kΩ.

Relay Contacts (invertible):

• Relay 1/pins 15, 16 and 17:
Inactive: Contact between pin 16 and 15 is closed when rotation speed drops below the switchpoint.
Active: Contact between pin 16 and 17 is closed when the speed reaches the rotation speed switchpoint.

• Relay 2/pins 18, 19 and 20:
Inactive: Contact between pin 19 and 18 is closed when an error is pending.
Active: Contact between pin 19 and 20 is closed in case of trouble-free operation.

• Relay 3/pins 21 and 22:
Inactive: Contact between pin 21 and 22 is closed in case of inactive warning messages.
Active: Contact between pin 21 and 22 is open when warnings are pending.

The RS-485 interface on the PFEIFFER TC 400 has the following electrical features and pin layout:

Interface Features:

M12 Connecting Socket Terminal Layout:

To connect and cross-link multiple PFEIFFER TC 400 units or other peripheral devices via the RS-485 bus, follow these steps:

1. Install the devices according to the specification for RS-485 interfaces.

2. Make sure that all devices connected to the bus have different RS-485 device addresses (parameter [P:797]). The group address of the electronic drive unit is 962.

3. Connect all devices to the bus with RS-485 D+ and RS-485 D-.

Switching on the turbopump:

The function “pumping station” [P:010] comprises the turbopump operation with control of all connected accessory devices (e.g. backing pump).

1. Set the parameter [P:023] to “1”. The parameter [P:023] switches on the motor of the turbopump.

2. Set the parameter [P:010] to “1”.

After a successful self-test, the electronic drive unit resets pending and corrected error messages. The turbopump and all connected accessories will start operation according to their configuration.

Switching off the turbopump:

The electronic drive unit switches off the turbopump and activates pre-set accessory options (e.g. venting ON, backing pump OFF).

1. Set the parameter [P:010] to “0”.

2. Wait until the turbopump comes to a complete standstill.

3. Disconnect the power supply according to the operating instructions of the turbopump or the power supply pack.

To disconnect the current supply completely, disconnect the power supply pack from the mains.

The LEDs on the PFEIFFER TC 400 electronic drive unit indicate the basic operating state of the vacuum pump:

Malfunctions on the PFEIFFER TC 400 result in either a warning or an error message. Errors (**Error E–**) always cause connected peripheral devices to be switched off. Warnings (*Warning F-*) do not cause components to be switched off.

To handle malfunction messages:

1. Read out error codes via Pfeiffer Vacuum control units or a PC.

2. Remove the cause of the malfunction.

3. Reset the malfunction message with parameter [P:009]. Use preconfigured interfaces or screen tiles on Pfeiffer Vacuum control units.

The following table lists common error codes, their possible causes, and remedies:

The following table lists common warning codes for the PFEIFFER TC 400, their possible causes, and remedies. Warnings do not cause components to be switched off.

General Disposal Information:

Pfeiffer Vacuum products contain materials that must be recycled. Dispose of products according to the following materials:

• Iron

• Aluminium

• Copper

• Synthetic

• Electronic components

• Oil and fat, solvent-free

Observe special precautionary measures when disposing of:

• Fluoroelastomers (FKM)

• Potentially contaminated components that come into contact with media

Disposal of Electronic Drive Unit:

Electronic components and their housings contain material that must be recycled.

• Dispose of electronic components in a safe manner according to locally applicable regulations.