Functional earth
The top-hat rail, on which the control is mounted, has to be mounted to a groun-
ded metal carrier, e. g. the rear panel of the control cabinet.
Grounding screw
A functional grounding via the grounding screw is required to ensure optimum
noise immunity. The grounding screw is positioned below the control (see figure
10-23). Connect the functional earthing via a cable, which is as short as possible
or, better, via a ground strap.
① Grounding screw
Fig. 10-23: Position of the grounding screw
Recommended value: Length: Max. 1 m, cross-section 6 mm
2
.
The functional earth (FE) is used to discharge interferences. The functional
earth is not provided as a protection against electric shock for persons.
Voltage jumper
Starting at the control, the FE (functional earth) voltage jumper is routed
through all connected Rexroth Inline terminals. This ensures that these terminals
are grounded, once the control, the supply terminals and the top-hat rail were
grounded properly.
L25, L45, L65, L75 and L85
Bosch Rexroth AG
Mounting, demounting and electric installation
DOK-CONTRL-IC*LX5*****-IT02-EN-P
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