Wiring 400 V
PE
PE
PE
PE
PE
PE
PE
(1)
6 mm² (green/yellow)
16 mm² (green/yellow)
min. 16 mm² (green/yellow)
All housing parts (functional ground)
To the machine
To the housing of the control cabinet
PE neutral point
230V
400V
4 mm² (green/yellow)
16 mm² (green/yellow)
4 mm² (green/yellow)
Fuses, better: protective motor switches
Overvoltage category III
Overvoltage category II
Terminals in
e.g. drives
W1e.
N
V1
U1
L1 L2 L3 N
Leads
L1.1L
L2.1 L3.1 N
PE
PE
N
U2
PE
N1 U2
4 mm² (green/yellow)
230 V power supply
=
Overvoltage category I
L1.1 L2.1 L3.1 PE
(1)
Power unit
L1.1 L2.1 L3.1 PE
Power unit
0 V U
L
U
Q
U
L
U
Q
0 V
DC 24 V
DC 24 V
isolated
arrangement
operator terminals
service plug receptacle(s)
N-conductor:
Use only with
permission of
the operator!
Transformer
acc. to EN 60742
PE bars are to be installed preferably on the mounting plate.
In case of isolated PB bars, both ends must be connected to the mounting plate
by means of copper strips with a maximum length of 20 cm.
The cross-section of the copper strips has to be at least equal to that of the incoming cable.
Fig.7-7:
Wiring 400 V
Danger of death by high electric voltage
DANGER
●
Connect power supply units, which generate protective extra-low voltage
(PELV) (24 V), only to supply voltages for which they are designed. Ob‐
serve the overvoltage categories, see
.
●
Do not apply the supply voltage to the protective extra-low voltage (PELV).
Bosch Rexroth AG
DOK-SUPPL*-VAM*11/41**-PR03-EN-P
Rexroth IndraControl VAM 11.1/41.1 Machine Control Panels
50/83
Interfaces
