ACS800 Tripping sometimes at the startup. Fault is 2310. Over current
Drive is configured for winder application and operation thru Profibus DP. Torque control macro and DTC used for it. sometimes when the run command received drive torque is going to negative for a while and the drive is being tripped with over current fault. which is happening within few milliseconds after receiving the run command.
I figured out abvoe point by set the drive speed feedback as internal instead of encoder (bypassed the encoder feedback).
In one site that I was working, the acceleration ramp time was set very low. If the speed reference to the drives was say full RPM, the drive would trip due to over current, because of the high inertial load of the fan, immediately after receiving the start command from the PLC.
They increased the ramp time to a higher value (~25 seconds from 5 seconds).I am not a Drives commissioning expert, but this could be one of the reasons.
It happens to me the same problem some time ago with ACS800 - and I found overcurrent trip is due to using of speed feedback from encoder. Exactly as you did - switch to internal speed feedback (calculated speed) fixed the problem in this case. I didn't determined the reason for that, because in our case the speed feedback was not so important to come from the encoder. But in your case it is important, looking in application - winder.
We also had a Prodibus DP control of the drives in our application and we used it to equalize the currents of the drives in the line by small difference in speed setting between drives - in the external PLC. Do you have such? Have you tried with a different settings for encoder? If the torque is negative, the drive will try to compensate it and this could cause a trip.