DC Motor Controller "Inhibit Circuit"?

Dec 31, 2007 4 Replies

I'm finally getting around to wiring up my Beel Inc Motor Controller. (ebay id beelindustrial)



Basically similar to a KBIC-125. The kit I have has a forward/break/ reverse switch. The wiring diagram for the switch shows lines that go out to the "Inhibit Circuit". This is for a "brake" type feature.



The controller is working great, but I've not experimented with the Brake feature as I only have the 25Watt resistor hooked up which will probably become a short lived light bulb if I flipped it on.



Any Ideas on what this should go to? I have an email out to the company but this is the last step for getting my lathe up and running.


A standard stove burner element runs from about 25 to 45 ohms depending on the size, rated at 1000 watts and up. I get them for free at an appliance recyclers.

Our new Haas TL-1 came with what looked like a coffee pot burner > I'm finally getting around to wiring up my Beel Inc Motor Controller.

I don't know how your controller differs from a KBIC, but the inhibit on a KBIC simply shuts off armature current - it's not a braking function. It's been a while since I've used one, but my recollection is that you jumper the inhibit terminals to turn off the drive output. Leave them open and the drive functions normally. A separate (big) relay would be required, in addition to the resistor, to set up braking and reversing with KBIC.

So the inhibit circuit is a separate circuit that is a stop function. Doesn't have anything to do with the braking function.

Thanks for clearing that up.

I was right though. The resistor that came with it isn't quite upto the task, got cherry red when I hit the brake.

Tomorrow I'll go try to find a bigger resistor element when I go buy the replacement fuse (miswired something on the switch, oops).

Thanks guys.

I received a very prompt reply from Beel instructing me that I can wire the inhibit into the main controller board on 2 of the terminals. This makes the brake like an off switch as well as acting as a brake.

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