I have an issue with a Powerflex70 drive communicating with a PLC5. The drive is setup as 1/2 rack and is communicating over remote I/O. It is only using the discrete I/O for control. The problem is with the speed reference. The drive starts/stops ok when the PLC tells it. The Start Owner & Direction owner shows 'DPI port5' as it should. However, the Reference Owner (param 292) shows all 0. I can see that the drive is receiving the speed reference in the Drive Ref Rslt (param 272). However the Drive Logic Rslt (param 271) only shows bit 1, and 4 (start & forward).
Can anyone tell me what would cause the drive not to use the speed reference even though the Speed Ref Source (param 213) shows as DPI Port 5? Its making no sense to me.
Any help would be appreciated.
Can anyone tell me what would cause the drive not to use the speed reference even though the Speed Ref Source (param 213) shows as DPI Port 5? Its making no sense to me.
Any help would be appreciated.