Motor armature current does not increase to near test amps within 6 seconds.

What does 933 mean?

This fault indicates that the motor armature current failed to reach near the specified test amperes within 6 seconds. This may occur during Self-Tune (Function #997) or Self-Diagnostic (Function #998).

• Faulty motor armature circuit, possibly an open circuit.
• Open SCR or missing SCR gating pulses.

Click steps to track your progress.

1. 1

   Check the motor armature circuit wiring for any open circuits.

2. 2

   Inspect the motor itself for any internal open circuits.

3. 3

   Perform Self-Diagnostics (Function #998) to verify the status of SCRs and their gating.