Functional earth (FE)

All existing connections for the functional earth must be connected to earth:

• Mounting holes
• "FE" cores in the supply cables

Functional earth via the mounting holes

The Fixing also serve as connections for the functional earth (FE).

Make sure that the box is earthed with low impedance via both mounting screws.

Functional earth via the supply lines

The pins of the Supply voltages marked with "FE" are directly connected to the functional earth potential of the mounting holes.

Connect the functional earth of the "FE" cores in accordance with the following instructions:

• If the remote station is a device with a 7/8" connector: connect the devices with a pre-configured cable. Possible types of preconfigured cables:
• Beckhoff ZK2030-1112-0xxx
• Beckhoff ZK2030-1114-0xxx
• Beckhoff ZK2030-1314-0xxx
• Otherwise: Earth the "FE" core with low impedance as near as possible to the remote station.