Fig. 12: Example: Voltage-Operated Earth-Leakage Circuit In Accordance With; Fig. 13: Example: G.f.c.i. Protection Circuit According To En 62135-1 - REXROTH PSG series Operating Instructions Manual

130 / 170 Bosch Rexroth AG
Assembly
Master switch
U
V
Undervoltage re­
W
lease
PE
FU
Voltage-operated earth-leakage circuit
Fig. 12: Example: voltage-operated earth-leakage circuit in accordance with EN 62135-1
Master switch
U
V
Undervoltage re­
W
lease
PE
g.f.c.i.
g.f.c.i. protection circuit

Fig. 13: Example: g.f.c.i. protection circuit according to EN 62135-1

| Electric Drives
and Controls
• Voltage-operated earth-leakage circuit (i.a.w. EN 62135-1)
• Voltage-operated earth-leakage circuit monitors secondary cir­
cuit.
• The protective conductor jumper has to be removed.
• The protection zone is limited to the secondary circuit.
Remove protective con­
ductor jumper (MPE)
MF
inverter
• g. f.c.i protection circuit (i.a.w. EN 62135-1)
• The g.f.c.i. protection monitors the power supply lines of the MF
inverter via current transformer.
• Instead of the protective conductor jumper, a ground fault protec­
tion resistor must be provided.
• The protection zone reaches from the current transformer to all
subsequent plant components.
Current
Replace protective conductor jumper (MPE)
transformer
by fault protection resistor(refer to page 150)
MF
inverter
(
(
(
Transformer
(
(
(
Transformer
Protection zone
PSG xxxx | 1070087062 / 04
Work­
+
piece
-
Protection zone
Work­
+
piece
-