Bosch Rexroth VM350 Manual page 28

28/112 Bosch Rexroth AG
CAUTION
Risk of damage to persons
and property!
The voltage circuits on terminal
XDN2 are safely isolated from the
mains circuit (safe isolation in
accordance with EN50178,
PELV).
y The requirements for safe iso-
lation of electric circuits must
be observed if using the con-
nection options on this termi-
nal.
Table 3 XDN2
Pin Signal Description/
function
1 VEE 24 V supply
voltage
2 VEE 24 V supply
voltage
3 VEE_NH 24 V supply
voltage for emer-
gency OFF circuit
4 ES emergency OFF
joint feed for mo-
tor contactors
5 GND Reference poten-
tial for all voltages
6 GND Reference poten-
tial for all voltages
7 GND Reference poten-
tial for all voltages
a The total current that can be drawn at pin
1 and pin 2 is max. 1 A (current limiting).
b Current limited to 1 A
i
The maximum torque at the bolted
connections of the terminals at XDN2 must
not exceed 0.3 Nm.
The motor contactors integrated in the servo
amplifiers are operated centrally by switching
the emergency OFF.
Voltage/cur-
rent
a
24 V= / 1 A
a
24 V= / 1 A
b
24 V= / 0.3 A
24 V / 30 mA
PE potential
PE potential
PE potential
VM350 | 3 609 929 B32/2008-09
NOTE!
DANGER
Insufficient emergency OFF
equipment!
Danger to life through electrical or
mechanical forces
y The user is responsible for de-
termining the necessity of an
emergency OFF, its imple-
mentation, and the risk analy-
sis! Make sure the emergency
OFF equipment is accessible
and effective. Release of the
emergency OFF equipment
may not result in an uncon-
trolled system restart!
y Check the function of the
emergency OFF equipment
before switching the system
on. If using the voltage circuits
at the emergency OFF termi-
nal, observe the requirements
for the safe isolation of electric
circuits.