Nidec & Control Techniques Unidrive M700, M600, M400, HS30 & HS70 Drive
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Apr 12, 2024 11:37 am
Cause : Drive encoder U commutation signal fail comes when a position feedback device with commutation signals is being used (i.e. AB Servo, FD Servo, FR Servo, SC Servo, or Commutations only encoder) and the U commutation signal did not change during a rotating autotune.
- Check feedback device U commutation signal wiring is correct (Encoder terminals 7 and 8).
