Bosch Rexroth ctrlX CORE X7 Operating Instructions Manual page 32

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Electric installation
Setup without electrical isolation
Overvoltage category I, 24 V
Power supply unit
PE
0 V
Separable
connections
Fig. 14: Structure of the supply voltage
Control does not start in case of reverse input voltage.
The 24 V feeding U
polarity reversal of U
the device. However, the control does not start and the status displays are not on.
Setup with electrical isolation
Provide electrical isolation between the logic supply U
acc. to DIN EN 60204-1. Accordingly, the voltage U
isolated from the periphery voltages U
Overvoltage category I, 24 V
Load
supply unit
PE
0 V
Separable
connections
Fig. 15: Structure of the supply voltage
Bosch Rexroth AG
24 V
FE
and U at the XD10 connector is protected against polarity reversal. A
L P
and GND U feeding as well as U
L L
(24 V segment voltage).
P
Logic
supply unit
24 V 0 V 24 V
FE
and GND U
P P
and the periphery supply U
L
(24 V logic voltage) at the control is electrically
L
ctrlX CORE X7
feeding does not damage
of the I/O terminals
P
R911419122, Edition 01