RBergmann
Member
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I’m currently trying to configure an AB PowerFlex 70 VFD. I've set what I believe are the correct paramters, but apparently not all I need. I only get a flashing green light.
I seem to be having difficulty setting up for two speed operation. I don’t have an external reference source like a 4-20mA or 0-10V potentiometer. I wish to use the two of the speed select inputs to select the operational Hz.
Here’s what I currently have set up:
I have two relays (enabled from a PLC); one for the Run signal and the second for speed control, NC on 4, NO on 5.
I think the wiring is okay, I believe my issue is with the parameter settings.
Thank for any assistance.
I’m currently trying to configure an AB PowerFlex 70 VFD. I've set what I believe are the correct paramters, but apparently not all I need. I only get a flashing green light.
I seem to be having difficulty setting up for two speed operation. I don’t have an external reference source like a 4-20mA or 0-10V potentiometer. I wish to use the two of the speed select inputs to select the operational Hz.
Here’s what I currently have set up:
- Run signal on Input 2
- 1st preset speed select on Input 4
- 2nd preset speed select on Input 5
- Jumper terminals 7 & 8
- Use internal 24VDC supply
I have two relays (enabled from a PLC); one for the Run signal and the second for speed control, NC on 4, NO on 5.
I think the wiring is okay, I believe my issue is with the parameter settings.
Thank for any assistance.