Resolver signals lost or incorrect

What does 10039 mean?

An error has occurred when using the Resolver Adapter (OPT-MF-201 or FB-03) due to a loss of resolver signals. This typically indicates an issue with the wiring to the motor's feedback device, the integrity of the motor connector, or the connections inside the adapter itself, preventing accurate position feedback and control.

• Resolver feedback cable is damaged (e.g., broken wires, short circuits) between the motor and the OPT-MF-201 adapter.
• Improper shielding or grounding of the resolver cable, leading to electromagnetic interference (EMI) on the signal lines (SIN/COS).
• Faulty resolver sensor within the motor itself, resulting in no or corrupted SIN/COS output signals.
• Incorrect wiring connections at the OPT-MF-201 adapter or the motor resolver connector (e.g., SIN/COS swapped, excitation lines incorrect).
• Resolver adapter module (OPT-MF-201 or FB-03) is faulty or not securely seated in the drive's option slot.

Click steps to track your progress.

1. 1

   Power down the drive, then disconnect and inspect the resolver cable for visible damage along its entire length.

2. 2

   Use a multimeter to measure continuity for each wire in the resolver cable from the motor connector to the OPT-MF-201 adapter connector.

3. 3

   Verify the resolver cable shielding is properly terminated at both ends (motor and adapter) to the chassis ground.

4. 4

   Confirm all resolver cable connections at the OPT-MF-201 adapter (e.g., terminals R+, R-, S1, S2, S3, S4) match the manufacturer's wiring diagram.

5. 5

   Check the mechanical integrity of the resolver adapter module; ensure it is fully seated in the drive option slot and secured with fasteners.

6. 6

   Using an oscilloscope, verify the SIN/COS signals from the resolver at the OPT-MF-201 input terminals while rotating the motor shaft manually.