- Huanyang VFD, activate relay when running below predefined RPM?
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Re: Huanyang VFD, activate relay when running below predefined RPM?
So if you set 08 to 8000 RPM, and 09 to say 100 RPM (lower than what you would ever run it at but high enough that it wouldn't be on at 0 speed,) would it connect one output at >= 100 RPM, then another output when >= 8000?
If so you can do some relay logic, probably need 2 relays. If output A is for 8000 RPM and B is for 100 RPM, you need !A || B. Which with relays you should be able to implement with 1 NC or dual throw relay and 1 NO or dual throw relay. A would be wired to the coil of the NC relay, and the output of the NC relay would be wired in series with output B to the coil of the NO relay (with the NO Contacts wired to the fan.)
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- Huanyang VFD, activate relay when running below predefined RPM?
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