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#1
 
01-04-2008, 10:09 AM
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I have retofitted a Orac lathe, and all is working! but have a problem with spindle speed, 3 phase motor is labled as 50Hz and controlled via a VFD set to 50Hz. Mach Turn spindle config is set to 2000rpm on pully 1, on control screen I have 2000rpm set in spindle speed box and % set at 100. When I run spindle true rpm shows 880, I can reduce speed via % buttons, but how do I increse speed? I have played with various pully No's but doesn't change speed What controls basic motor speed is it VFD or Mach? Anyone got some clues? Thanks Mike  |
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