I'm forever blowing fuses
joey | 18/03/2016 21:15:28 |
![]() 31 forum posts | Dave, Thanks for the information. i went the same way, but bought a motor specially designed for vfd use. I have turned up the 1470 rpm 4 pole motor to 100 hertz and it runs quite happy at that setting.(2900rpm) |
DrDave | 18/03/2016 22:05:16 |
264 forum posts 52 photos | Joey, Glad to have been of help. |
uli Schnelzer | 19/02/2022 19:52:35 |
2 forum posts | I know, it's gravedigging. long long ago, I had the same problem with my C5. I added a polechanger switch to reverse the rotation of the motor, but without a neutral position between. That has killed one or more of the 5 TO- 220 parts on the small side of the Motor controller mounted to the aluminium angle. 2 and 3 are the same 1 a transistor and the other a rectifier. Because I don't have the possibilities to test the parts in the circuit, I changed all 5 parts and the motor is running again. Later I changed the direction switch to a type with a neutral middle position. since then I wait until the spindle standstill, no other Issue happend. |
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