Connection
Note | |
Use cables with suitable cross-sections! Ensure that the cross-sections of the cables employed are suitable for the load circuit inputs and outputs and the respective nominal current being used! |
The supply voltages are fed and relayed onward via two 7/8" connectors in the center of the modules:
- "Power IN", left: 7/8" plug for feeding the supply voltages
- "Power OUT", right: 7/8" socket for downstream connection of supply voltages
The contacts of the 7/8" connectors can conduct a maximum current of 16 A (40 °C).
Two LEDs next to the device identifier label indicate the status of the supply voltages.
Pin assignment
|
|
Input | Downstream connection |
7/8“ connector | 7/8" socket |
Pin | Voltage |
|---|---|
1 | GND Up |
2 | GND Us |
3 | FE (functional earth), (including upper and lower wire bracket of the central screw connection) |
4 | Control voltage Us, +24 VDC |
5 | Peripheral voltage Up, +24 VDC |
For suitable connection cables, see chapter Accessories.
Control voltage Us: 24 VDC
The fieldbus and the processor logic are supplied from the 24 VDC control voltage Us. The control voltage is electrically isolated from the fieldbus circuitry.
Peripheral voltage Up: 24 VDC
The peripheral voltage Up is monitored and fed to the power outputs, but is not used in the EP9214.
Redirection of the supply voltages
The power connections Power In and Power Out are bridged in the module. Hence, the supply voltages Us and Up can be passed from EtherCAT Box to EtherCAT Box in a simple manner.
Note | |
Observe the maximum current of the 7/8" plug connectors! Also ensure when relaying the supply voltages Us and Up onward that the maximum permissible current of 16 A / 40 °C for each 7/8" plug connector is not exceeded! |