Problem with PF700 and torque-prove-w-encoder mode

[chantecler 15]

Hi all,

I am servicing a car elevator whose lifting motor is being driven by a Powerflex 700 AC drive. 

The elevator’s powerflex has been working for some years with "slip comp feedback" (par. 80).

I've been asked to put the encoder feedback to work which has turned out to be an impossible mission.

So far I have checked out: the encoder, the encoder board, the cables, the breaking resistor, the parameters, the tuning and almost anything you can imagine. I’m about to take me to a mental hospital.

One thing that is bothering me is that the Powerflex in the twin brother elevator which functions perfectly has firmware version 6.002 and the one that refuses to work in torque-prove-with-encoder mode has firmware version 6.004.

Any idea or suggestion?

Could someone with tech-connect check if there is an issue with firmware 6.004 and torque-prove apps?

I’ll appreciate it

[chantecler 15]

Dear cyber-friends,

I found that some torque-prove related issues were corrected in firmware 6.008. I'm going to try either downgrading to 6.002 or upgrading to 6.008.

I thank myself for responding to my post,

 

 

[TravisPedley 21]

Glad we could help :)