Applicable Systems
Schindler Control System
Symptoms
Safety circuit/safety chain unexpectedly opened or not closed as expected
Possible Causes
- Safety chain interrupted during travel
- door safety contact open
- safety relay fault
- 110V fuse blown on SMIC board
Troubleshooting Steps
- Step 1: Check safety circuit contacts
Verify the fault is resolved after completing this step. - Step 2: inspect SMIC board 110V fuse
Verify the fault is resolved after completing this step. - Step 3: verify door safety contacts
Verify the fault is resolved after completing this step. - Step 4: check UCM recovery
Verify the fault is resolved after completing this step.
How to Reset
Power cycle; resolve safety chain fault
Source: book118 Bionic 3300 diagnostic manual; diantijob.com/175389.html
Category: Elevator