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.
My email is firstname.lastname@example.org
Please send an email to me.
to better understand the application, could you give me some information about the motor - type, current, rpm, brake ecc. and how you have do the electrical command for the brake.
What kind of encoder is mounted?
What encoder feedback interface did you use? FEN-31?
Could you post the parameter file of ACS880?
May be you have to adjust the gain of the drive (parameter group 25), but this is a fine adjustment you have to do very carefully
Hope this help you