On Sun, Oct 13, 2024 at 02:35 PM, mike allen wrote:
I think the top speed for my 9A was 1000 RPM . Pretty sure ya can set limits on the VFD .
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9A has a listed speed of 1270 rpm.
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I have a tach on my SB13. ?If I run the VFD at 60 hz in high gear, it shows within 10-20 rpm of the factory listed speed of 940 rpm. ?I have turn the frequency up and ran it to about 1100 rpm. ?The bearings got a little warm, but not hot. ?I usually don't run it anywhere near that rpm. Mine has a 3 step pulley, most of the time I just leave the belt in the middle and adjust speed with the VFD. I run the motor from 30 to 90 hz.
