932
Armature CEMF volts >20% of rated during test.
Otis · DSD 412 Elevator System
What does 932 mean?
This fault indicates that the Armature CEMF voltage exceeds 20% of its rated value during a test. This condition may occur during Self-Tune (Function #997) or Self-Diagnostic (Function #998).
Common Causes
- Motor is rotating during the test, producing CEMF.
- High motor armature resistance.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Ensure the motor is mechanically locked and not rotating during the test.
- 2
Ensure that the brush commutator is clean to minimize armature resistance.
- 3
Temporarily increase parameter #7 (Rated Armature Volts) during the test.
Verified technical data. Last updated: March 2026
Related Faults
Source: Otis DSD 412 Elevator System