REXROTH IndraControl L40 Series - Fig. 8-9: Reference Conductor Connected to the Protective Conductor

8-12 Installation and Maintenance IndraControl L40
DOK-CONTRL-IC*L40*****-PR03-EN-P
Reference Conductor Connected to the Protective
Conductor
If the reference conductor (N, 0 V) is connected to the protective
conductor system, then this connection must be arranged at a central
point (e. g. at the load power supply unit or at the isolating transformer). In
addition, it must be possible to break this connection for measuring
ground leakage currents. Hence, the supply current circuit is a PELV
circuit.
L1
L2
L3
N
PE
UM
US
ULS
GND
GND (U
S , UM)
FE
24 V 24 V
0 V +0 V+
Separable
connections
Bezugverbunden.FH9
Fig. 8-9: Reference conductor connected to the protective conductor
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