[Home]History of Analog Spindle Speed Control

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Revision 14 . . August 25, 2008 8:47 pm by GNieport
Revision 13 . . August 25, 2008 8:42 pm by GNieport
Revision 10 . . August 23, 2008 6:47 am by Steve Stallings
  

Difference (from prior major revision) (author diff)

Changed: 53c53
Please verify the VFD minimum and maximum settings are appropriate for your motor's duty cycle and cooling setup. I set the minimum speed command to 0.375 Volts, which allows a 90 RPM minimum spindle speed. Note that I have external cooling to allow the motor to safely operate at this low speed. A self-ventilated motor would likely be damaged if operated below 50% of the nameplate speed while under heavy load.
Please verify the VFD minimum and maximum settings are appropriate for your motor's construction, duty cycle, and cooling setup. I set the minimum speed command to 0.375 Volts, which allows a 90 RPM minimum spindle speed. Note that I have external cooling to allow the motor to safely operate at this low speed. A self-ventilated motor would likely be damaged if operated below 50% of the nameplate speed while under heavy load.

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