Hello Guys, I have a problem with ACS880 driver, when the Vfd start from 0 rpm to 3250 work normally, but when stop to 3250 to 0 rpm. the setting on rpm is 0rpm but the driver hold the rpm in 511 rpm (the problem is same in both stop mode-coast or ramp). the driver not show failure or alarm in control. I am not sure if have problem with parameters or have problem with control card or igbt sides. note: when changing driver for the application work normally. Can you help me with the solution of this problem?
In order to correctly make a suggestion, I should see how you programmed the drive. In particular, the parameter groups 20, 21,22,23,24,25,26,27,28 .... You should also better describe your application, starting with the type - model of drive, what motor you are using it with, if you are in DTC or V / F control. Is the drive control done in analog or do you have a fieldbus?
The more information you can provide, the better we can help you