Bosch rexroth VM350 Operating Instructions Manual page 34

34/48 Bosch Rexroth AG
Product description
Stationary tightening spindles (shutdown via mains lead)
An additional external 24 V power pack can be connected via the X1S2 interface. If the mains power
supply is switched off, this supplies the electronics in the 350 tightening system (external field buses
such as e.g. ProfiBus remain ready for operation.
XDN2
X1S2
INT
EXIT
Reset Reset Reset
X1S1
XDN2
X1S2
VM350 LTU350/1 LTU350/1
3
1 5
- Kx
2 4 6
3
- Ky 1 5
3
2
6
4
3
Fig. 5:
The external power pack at this interface is connected in parallel to the internal 24 V power supply. The internal
*
isolating diode ensures that with equally high supply voltages (internal = external), the internal power supply
bears the load. The power pack must be stabiled and protected against short circuit and overload. Maximum
ripple voltage 240 mVpp, 150 mVRMS, minimum and maximum power see page 27.
C
Power pack in acc. with EN50178 *
24 V
0 V
=
Mount terminals
-XL x and -XL y
next to the
appropriate
contactors
VM350 | 3609929B32/2021-09
EMERGENCY CONTROL
OFF ON
24 V
21 21 13
22 22 14
- X
EMERGENCY OFF
RELAY
Ex. PILZ PNOZ
21
21
- Kx 3 - Ky
22
22
4
SAMPLE CIRCUIT
EMERGENCY OFF
24 V
A1 A1
- Ky
- Kx
A2 A2
0 V
1 2.5
1 2.6
3 4.5
3 4.6
5 0.5
5 0.6
21 22.1
21 22.2