VFDs?

[irving2008]

Most modern VFDs are pretty well protected, but NEVER run one without the motor connected. In general the factory defaul settings will usually work OK, but you would then tune them to work with the motor (things like ramp up, min and max speeds, etc.) Wiring up is easy, but you'll need some suitably rated 4-core cable, preferably screened and ideally a line filter.

When you switch it on the motor wont run until you press the run button... you can usually program it all then before starting the motor....

I assume you have the setup guide for the Omron 3G3MV-AB040? This is single phase to 3-phase at 4Kw (approx 5HP), and I assume you have the smallest spindle motor which is listed at 3.75kW.

[graffian]

I assume you have the setup guide for the Omron 3G3MV-AB040? This is single phase to 3-phase at 4Kw (approx 5HP), and I assume you have the smallest spindle motor which is listed at 3.75kW.

I have the same pdf, well it's got 21 pages more and is twice the size, strange!
Yes i have the small spindle motor, I was looking for a 7.5 hp inverter but the people at inverter.co.uk
reconed a 4kw would do, if i wasn't going to cane the spindle. The motors are listed 3.7 continuous and 5.5 for 30 mins.
So i just plug it in and press buttons.

I have several filters from the original setup, how do they work? they would be for three phase.