Technical description 8100_A
9
3.1.2 GROUNDING CONTROL ELECTRONICS
Single drives
For computer networks with fixed installation, an additional potential separation
between computer and inverter (e.g. Lenze Converter 2101) is necessary.
Network of several drives
In a drive network, it is necessary to remove the GND-PE connection from every
controller, to avoid GND-Ioops. Carry all GND-cables to external insulated central
points, centralize again from there and connect to PE in the central supply. Make
sure that the voltage between GND and PE does not exceed 50 V.
In case of a fixed computer installation, mains isolation must also be provided (e.g.
Lenze Converter type 2101).
GND-PE bridge
F1
GND- PE bridae
o
V60
V61.
-EEffi
u V W RB +UG-
Lenze
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