Much has been written lately of what supposedly can and can not be done to control a vfd on a machine so I figured I would post a few examples just to give folks some ideas. The first pic is a 1946 unisaw and I utilized the original 3 pole mechanical motor starter to run the vfd;
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The switch controls start and stop only for a Fuji vfd which is programmed for forward at full speed only with a 2 second ramp up on start and 4 second ramp down on stop. The next pic is the control station for a 1950's Delta 17" drill press;
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This controls a Teco drive that is programmed for forward and reverse, with a speed range of 10-100hz and a 2 second ramp up and down. The final pic is of my Yates 20" band saw that i replaced the original mag switch with a FMX drive and added an e-stop as well;
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This drive is programmed to run from 30-60hz forward only. Start is 6 seconds ramp up and stop is programmed for coast to stop. The e-stop is set for 10 seconds as any faster trips the drive out. It also requires a manual reset of the e-stop button and it does not re-start on reset.