Originally Posted by
muzzlitebeer
Well... looks like the VFD is DOA.
I hooked up the spindle to at least let it run @300Hz, but the spindle just screamed and wouldn't rotate.
I measured the output of the VFD with my DMM and at 133Hz (minimum frequency setting) it was only putting out about 96V between the phases, but at 8.6kHz.
When I dialled it up to 300Hz the voltages between phases were 79V, 136V and 212V and the frequencies were 9.7kHz, 5.9kHz and 5.2kHz.
So... it's not a stretch of the imagination to say that the VFD is... #$%&@, but I want to check that the spindle is actually still OK.
My new question is... Is there anyone on the Sunshine Coast (Queensland) that would let me test my spindle on their VFD?
Thanks in advance.