ACS880 drive fault DL105 speed match
We are commissioning an ACS880 drive for crane hoisting and having fault D105 speed match.
There is a speed encoder. We compared paramter 1.02 motor speed estimated and 1.04 Encoder 1 speed and found they are close although not exact. We set parameter 90.41 to encoder 1.
The hoist did the lifting and there are two faults:
1. D105 speed match
2. 7310 overspeed fault
We noticed 1.02 is -4.12 rpm and 1.04 is -3.9 rpm. They jumped to 63.30rpm and 65.29 rpm in split second before faulted the drive.
The drive is a acs880-01-145a-3.
It is rated at 135A. The motor ampere is 90A. We noticed when the drive drive, the drive current is in between 133A - 135A.
please provide some guidance on how to resolve the issue.
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