Thread: AndyUK's Build - 1.2x1.0m Gantry
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02-06-2019 #9
Last Activity: 27-04-2025
Back emf: from the coil of the contactor/relay.
But I don’t know the particular UB1 output spec. If a mosfet might find it has a commutatinf diode built in, otherwise place a 1N4001 across the coil, cathode to 24v line, anode to ground
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