PowerFlex 700 Problem....

[JoseM]

Can anybody give me some guidance on how to troubleshoot a PowerFlex 700 drive.

I have this VFD drive driving a pump that doesn't want to run. I checked that the code on the "ControlLogix" is sending the command to start to the VFD. I also talked to AB technical support and they told me that communication should be working correctly.

 

[Kev77]

How is the drive controlled? What does the display on the drive say? Have you looked at what the digital input status parameter is telling you? Do you have a hardware enable on the drive?

 

[JoseM]

I just discover that various parameters where change under the "Communications" mode of the PF700. Parameters like "Logic Mask", "Start Mask", "Direction Mask", "Reference Mask", etc. They where set to [000010] and the correct setting according to Allen Bradley technical support is [111111].