Connecting Signaling Contact X3 - Siemens Sinamics S120 Manual

Motor-side power components
10.2 Voltage Protection Module VPM
10.2.7.1

Connecting signaling contact X3

The signaling contact X3 must be wired before connecting the power cables.
Figure 10-15 Connection of the signaling contact using the VPM200 as an example
The X3 signaling contact is routed via a bistable relay. The relay may shift to the other
switching state if subjected to excessive movement during transportation and installation.
This may prevent the system from starting.
NOTICE
Damage as the short-circuit thyristor is still conducting
When a Voltage Protection Module is tripped and the short-circuit thyristor is still conducting
before the converter is switched on again, then this can result in damage to the system.
• The motor must have come to a standstill.
• Signal contact X3 must have closed again.
• Check that the thyristor is in a no voltage condition.
Cause and rectification of faults
The "Installation" sections in the documents referred to below contain additional information
on the causes of faults and how they can be rectified:
Operating Instructions for Voltage Protection Module VPM120, Order No.: A5E00302281B
Operating Instructions for Voltage Protection Module VPM200, Order No.: A5E00777655A
Operating Instructions for Voltage Protection Module VPM200 Dynamic, Order No.:
A5E00302261B
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Booksize Power Units
Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6