Electrical Connection¶
The Ethernet Bus Module CI512-ETHCAT is plugged on the I/O Terminal Unit TU507-ETH or TU508-ETH. Properly seat the module and press until it locks in place. The Terminal Unit is mounted on a DIN rail or with 2 screws plus the additional accessory for wall mounting (TA526).
The electrical connection of the I/O channels is carried out using the 30 terminals of the I/O Terminal Unit. I/O modules can be replaced without re-wiring the Terminal Units.
Note
Mounting, disassembling and electrical connection for the Terminal Units and the I/O modules are described in detail in S500 System Data AC500 System Data and System Construction.
The terminals 1.8 and 2.8 as well as 1.9, 2.9 and 3.9 are electrically interconnected within the Terminal Unit and have always the same assignment, independent of the inserted module:
Terminals 1.8 and 2.8: Process supply voltage UP = +24 V DC
Terminal 3.8: Process supply voltage UP3 = +24 V DC
Terminals 1.9, 2.9 and 3.9: Process supply voltage ZP = 0 V
Note
With a separate UP3 power supply, the digital outputs can be switched off externally. With this, an emergency-off functionality can be realised.
The assignment of the other terminals:
| Terminals | Signal | Meaning |
|---|---|---|
| 1.0 to 1.7 | DC0 to DC7 | 8 digital inputs/outputs (configurable via software) |
| 2.0 to 2.7 | DI0 to DI7 | 8 digital inputs (delay time configurable via software) |
| 3.0 to 3.7 | DO0 to DO7 | 8 digital outputs |
Caution
Removal and mounting of energized modules is not permitted. All power sources (supply and process voltages) must be switched off while working on any AC500 system.
The following figures show the electrical connection of the Ethernet Bus Module CI512-ETHCAT.
Connection of the Bus Module CI512-ETHCAT
Note
In case of voltage feedback, 2 cases are distinguished:
1. The outputs are already active
The output group will be switched off. A diagnosis message will appear. After 5 seconds, the module tries automatic reactivation.
2. The outputs are not active
Only the output with voltage feedback will not be set to active. A diagnosis message will appear.
Caution
The process supply voltage must be included within the earthing concept of the plant (e. g. earthing of the minus pole).
The module provide several diagnosis functions EtherCATâ Bus Module CI512-ETHCAT.