+-10 volt spindle?
15 Sep 2013 09:51 #38858
by PCW
Replied by PCW on topic +-10 volt spindle?
Actually quite a few people use the Mesa analog outputs for tachometer simulation.
It works fine especially since the encoder velocity signal uses timestamping for better velocity estimation than Counts/DeltaTime
It works fine especially since the encoder velocity signal uses timestamping for better velocity estimation than Counts/DeltaTime
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15 Sep 2013 11:51 #38859
by DaOne
Replied by DaOne on topic +-10 volt spindle?
JR1050, Do you have any recommendations for a good drive for these servos that wont break the bank?
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16 Sep 2013 01:43 #38867
by JR1050
Replied by JR1050 on topic +-10 volt spindle?
Ive used AMC amps before,they are easy to set up and can be found cheap as pull outs. The smaller ones are not real expensive new. If your Fanuc drives work, keep them, they are bullet proof. Changing the drives will allow you to run in current mode with out tachs, but I have found current mode drives more difficult to tune. The black cap motors used scr drives and the yellow cap transistorized. Your lathe probably had a 5T, 6T or 3T ?
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16 Sep 2013 08:36 #38871
by DaOne
Replied by DaOne on topic +-10 volt spindle?
It was a 5t. I got it going again with the old control but reliability was a joke. Also programming it was too much fun.
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16 Sep 2013 22:27 #38885
by JR1050
Replied by JR1050 on topic +-10 volt spindle?
I know about 5t. I had an Ikegai with one and my Mori has one. Not fun to program at the control.... With a btr and getting used to no.decimal point, not really that bad.....
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16 Sep 2013 22:30 #38886
by DaOne
Replied by DaOne on topic +-10 volt spindle?
Yeah that was the problem. the BTR in it would not work. I wrote a simple program from the control and that was enough to tell me it was time to fix that problem.
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