Powerflex 70 fault 91

[hotrodemon 0]

Hello, I have a pwerflex 70 and it shows a fault 91 every time we try to run it, however there are not any encoders on the motors it is running. We are at a loss with this, and have checked all inputs and everything appears to be correct. Any thoughts on this would be great!

[twistedbones 0]

Just a guess here, Check parameter 53. If it is set to 4 your drive may be looking for an encoder and when it does not find one is kicking back a 91 fault.

 

Good luck!

[Kingparmer 0]

Did you solve your problem ? If not I'll look at one of my 70s and see what my parameter is.