08-29-2009, 11:21 PM
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| | | Join Date: Dec 2004 Location: usa
Posts: 1,665
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Originally Posted by LazyMan  I am confused about what is needed to turn a spindle on and off. I understand how a router can be turned on and off via relay. Is it the same for a spindle/vfd? Do I need a vfd speed controller? |
A VFD needs a start/stop signal and some sort of usually analog input to vary the spindle speed. My Hitachi sj200 can also be programed in a multi speed mode where based on several different relay type inputs, it willl give say 6 preprogramed speeds.
A g540 from gecko has the analog output needed to drive a vfd or you can get an analog "module" from several BOB suppliers.
Mike
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