Replacing a defective auxiliary contact
Part number | Designation | Use |
|---|---|---|
29704545 (CE variant)/ | Contact element Q1.1 | Separation ES- |
29704545 (CE variant)/ | Contact element Q1.2 | Disconnector return signal |
If the auxiliary contact Q1.1 is defective, additionally check the following components for correct function:
- Auxiliary contact Q1.2
- Disconnector Q1
- Fuse F3
If the auxiliary contact Q1.2 is defective, additionally check the following components for correct function:
- Auxiliary contact Q1.1
- Disconnector Q1
- I/O module
Procedure:
- Remove the cover.
- Remove the auxiliary contacts in accordance with the instructions from ABB.
- Disconnect the electrical connections.
- Mount and install the auxiliary contact in reverse order in accordance with the instructions from ABB.

