The analog is not correct as to what rpm I have called, but the VFD reacts appropriately to the analog signal. I guess I didn't state that very clearly. The issue seems to be the analog voltage the U18 chip is sending is not consistent.
Thread: Another spindle rpm issue....
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04-05-2014, 04:21 PM #1
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Re: Another spindle rpm issue....
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04-05-2014, 05:12 PM #2
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Re: Another spindle rpm issue....
Bob,
A quick question, is the chip really MC1508? I opened up my machine and found it to say MC1408P8, so is one superseded by the other? I found the 1508 chips on ebay and was already going to buy a couple.... figured I better double check.
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