Grounding - Bosch rexroth IndraControl XM21 Operating Instructions Manual

IndraControl XM21, XM22 Controls
Peripheral PSU
PE
0 V 24 V
Overvoltage
category I
24 V
Separable
connections
Fig. 10-16: Reference conductor connected to protective conductor
Dimensioning the voltage supply
Observe the maximum currents when dimensioning the voltage supply. The ope-
rating voltage allowed has to be applied directly to the device.
The voltage must also not be exceeded if:
there are variations in line 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
system, this connection 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.

10.7.4 Grounding

NOTICE
An optimum grounding is required to keep away possible interferences from the
control and to discharge them to the ground.
Mounting, demounting and electric installation
Logic PSU
0 V 24 V
FE
) is connected to the protective conductor
LS
Control failure due to insufficient grounding
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b2
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