3 609 929 B32/2008-09 | VM350 Bosch Rexroth AG 27/112
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X1S1 user interface for external 24 V
power supply
The X1S2 interface enables the external 24 V
power supply. This ensures the power supply
e.g. to interfaces after triggering the
emergency OFF (i.e. after disconnecting the
mains lead).
The power pack must be protected against
short circuit and overload.
Recommendation:
Rexroth VAP 01.1H-W23-024-010-NN
MNR: R911 17 10 65
XDN2 user interface
The XDN2 interface is located on the front
panel. This serves to:
• ensure the 24 V power supply for external
consumers
• provide the emergency OFF connection,
referred to in this document as NH.
Fig. 3: Terminal strip, 7-pin, with jumper
Pin 3 and pin 4 are fitted with a jumper at the
factory in order to ensure the operational
readiness of the tightening system. This
jumper must be removed for connection of an
emergency OFF circuit.
Table 2 X1S2
Pin Signal Description/
function
Voltage/
current
1 VEE_
Extern
External (custom-
er's) 24 V power
supply for the 350
tightening system
24 V +/– 5 %;
10 A
2 GND Reference poten-
tial for all voltages
PE potential
NOTE!
The insulation stripping length must be at
least 10 mm for reliable contacting to
X1S1.
The maximum torque at the bolted
connections of the terminals at X1S1 must
not exceed 0.5 Nm.
i
NOTE!
The 24 V supply voltage (VEE) is not
galvanically isolated from the internal
supply.
1
2
3
4
5
6
7
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