Thread: uc300eth vfd connectios
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11-05-2020 #8
Depends on the VFD, often VFD as 2 sources for controlling the speed, Voltage or Current. usually marked V1 or A1 You want V1 for voltage and the Gnd goes to ACM.
The other two wires you speak of will be for Run (Forward) and these are usually sent through a relay. They often come from FOR and DCM(gnd).
You can use them directly with the Outputs but you will need to tie the DCM to the Gnd of DC source you are powering the controller with.
Personally I'd use the output to turn on a relay.!-use common sense, if you lack it, there is no software to help that.
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