Grounding - Bosch Rexroth ctrlX CORE plus X3 Operating Instructions Manual

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Electric installation
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 peripheral voltages U
Overvoltagecategory I, 24 V
supply unit
PE
0 V
Separable
connections
Fig. 15: Setup of the voltage supply ctrlX CORE
Dimensioning the voltage infeed
Observe the maximum currents when dimensioning the voltage supply. The operating voltage allowed
has to be applied directly to the device.
The voltage must also not be exceeded if:
•
there are variations in mains voltage, e.g. caused by different loads of the mains
•
there are varying load states, such as short-circuit, normal load, lamp load or no load
Connecting the reference conductor to the protective conductor
If the reference conductor 0 V (U
has to be arranged at a central place (e.g. at the load power supply unit). Hence, the supply current
circuit is a PELV circuit.

10.5.4 Grounding

NOTICE
Bosch Rexroth AG
(24 V segment voltage).
P
Load Logic
supply unit
24 V 0 V 24 V
FE
PLUS
, U ) is connected to the protective conductor system, this connection
L P
Failure due to insufficient grounding
An optimum grounding is required to impede possible interferences from the
control and to discharge them to the ground.
and the periphery supply U
L
(24 V logic voltage) at the control is electrically
L
X3
ctrlX CORE X3
plus
of the I/O terminals
P
R911420136, Edition 01