Fixing; Tightening Torques For Plug Connectors; Functional Earth (Fe) - Beckhoff EP3751-0160 Documentation

Mounting and connection
4.1.2

Fixing

Dirt during assembly
Dirty connectors can lead to malfunctions. Protection class IP67 can only be guaranteed if all cables and
connectors are connected.
• Protect the plug connectors against dirt during the assembly.
Mount the module with two M3 screws on the mounting holes in the corners of the module. The mounting
holes have no thread.
4.1.3

Tightening torques for plug connectors

Screw M8 connectors tight with a torque wrench. (e.g. ZB8801 from Beckhoff)
Torque: 0.4 Nm.
4.1.4

Functional earth (FE)

The mounting holes also serve as connections for the functional earth (FE).
Make sure that the box is grounded to low impedance via the functional earth (FE) connection. You can
achieve this, for example, by mounting the box on a grounded machine bed.
FE
FE
16
NOTICE
Version: 1.0 EP3751-0160