- Problem- WEG CFW300 VFD + KL-800 water cooled spindle settings
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Member
WEG CFW300 VFD + KL-800 water cooled spindle settings
VFD: WEG CFW300A06P0S1NB20
120V single phase in, 220V three phase out, 1.5HP
https://www.automationdirect.com/adc...300a06p0s1nb20
Manuals: https://cdn.automationdirect.com/sta...wegdrives.html
Spindle: KL-800
220V, 5A, 400Hz, 8000-24000RPM, 0.8kW water cooled
https://www.automationtechnologiesin...illing-spindle
Current settings:
P100 (Acceleration): 2 seconds
P101 (Deceleration): 2 seconds
P133 (Drive Min speed): 133 Hz
P134 (Drive Max speed): 400 Hz
P156 (Rated Speed Overload Current): 5.5A
P157 (50% Speed Overload Current): 5.5A
P158 (20% Speed Overload Current): 5.5A
P223 (Direction): 1 (forward)
P400 (Motor Rated voltage): 220 V
P401 (Motor rated current): 5A
P402 (Motor rated speed): 24,000 RPM
P403 (Motor rated freq.): 400 Hz
When drive is enabled, motor turns at very slow rate of speed (~550-600 RPM) and immediately throws an A046 (motor overload alarm) and if you let it continue to run it will throw a F072 (motor overload fault) after about 30 seconds.
Video of spindle run: https://drive.google.com/file/d/1MDO...ew?usp=sharing
The most likely issue seems to be incorrect settings in the VFD... but it could be a spindle issue, or ?
Help, thoughts, anything is much appreciated.
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Member
Re: WEG CFW300 VFD + KL-800 water cooled spindle settings
Problem solved...
Setting max voltage and frequency sets the 100% point on the V/f curve - but doesn't adjust any of the other points.
50% voltage at 30Hz, and 100% voltage at 60Hz will definitely cause overload.
Set
P145 (Field Weakening frequency): 400 Hz
P146 (Intermediate frequency): 200 Hz
...and everything appears to be working well.
- Problem- WEG CFW300 VFD + KL-800 water cooled spindle settings
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