8
05.01
8.16 VPM Voltage Protection Module
8-331
©
Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
Note
Signal contact X3 of the VPM is routed via a bistable relay. Very significant
shocks that occur during transport and installation can cause the relay to go
into the other switching state. As a consequence, it cannot be guaranteed that
the system will start.
To resolve the fault:
1. Connect terminal 9 and terminal 663 (pulse enable)
2. Switch–on SIMODRIVE 611D
3. Allow the spindle to rotate at an average speed for at least 2 seconds
4. Switch–off SIMODRIVE 611D; the relay is reset when the internal 24 V
supply is switched off
5. Remove the jumper between terminal 9 and terminal 663
The maximum length of the power cable between the power module and Volta-
ge Protection Module is 1.5 m. It is not permissible that this module includes
any switching elements.
The power cable between the Voltage Protection Module and the motor must
not exceed a length of 50 m.
The maximum length of the signal cable is 10 m.
Cable lengths
8 Important Circuit Information
02.12