Nidec & Control Techniques Unidrive M700, M600, M400, HS30 & HS70 Drive
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Apr 12, 2024 12:19 pm
Cause : Drive encoder (Feedback) wire break comes when the Encoder 2 trip indicates that the drive has detected a wire break on the 15 way D-type connector on the drive. The exact cause of the trip can be identified from the sub-trip number.
Sub-trip & Reason given below:
1 - Drive position feedback interface 1 on any input
2 - Drive position feedback interface 2 on any input
11 - Drive position feedback interface 1 on the A channel
12 - Drive position feedback interface 1 on the B channel
13 - Drive position feedback interface 1 on the Z channel
- Ensure that the position feedback device type selected in Pr 03.038 is correct for the position feedback device connected to the P1 interface on the drive.
- If wire break detection on the drive encoder input is not required, set Pr 03.040 = XXX0 to disable the Encoder 2 trip.
- Check cable continuity.
- Check wiring of feedback signals is correct.
- Check encoder power supply is set correctly (Pr 03.036).
- Replace encoder.