assemblies. Accordingly, the voltage U
LS
(24 V
logic voltage) is electrically iso‐
lated from the voltages U
S
(24 V segment voltage) and U
M
(24 V main voltage)
in the IndraControl L10.
The following is an example of a setup with electrical isolation:
Fig.8-3: Setup with electrical isolation
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.
38/54 Bosch Rexroth AG | Electric Drives
and Controls
Rexroth IndraControl L10 | Project Planning Manual
Installation and Maintenance
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