VFD Has defantly blown up now!

[charlieuk]

I tried all the settings in program 002 and still don't seam to have control over the speed via Mach 3 only on and off.

Is there maybe something else as well that needs to be switched at the same time?

[Ger21]

There's a jumper on the VFD that you may need to change? See page 10 in your manual.

[Clive S]

I tried all the settings in program 002 and still don't seam to have control over the speed via Mach 3 only on and off.

Is there maybe something else as well that needs to be switched at the same time?

From the manual:-

PD001: Command source. Set to 0. 0 means you're controlling the spindle via the front panel controls. 1 means you're using controls that you've wired up to the screw terminals. 2 means you're going to control it using RS-485.

PD002: Speed control source. Set to 1. 0 means you're controlling the speed through the up and down front panel buttons. 1 means you're going to control the speed with either the knob on the front or an external potentiometer. 2 means RS-485.

When PD002 is set to 1, there is also a jumper next to the screw terminals that you have to set. If the jumper is on the right pair, the control is the front panel knob. If the jumper is on the left pair, the control is via an external potentiometer connected to the screw terminals. Make sure the jumper is on the right-side pair.

[charlieuk]

Cheers many thanks that did the trick sory if it was odvios in the manual I just really struggle with reading pages of text. Think we are all sorted now and have already got 10h on the new spindle and vfd.

I opened the old vfd up and there is a green resistor that looks like it was what got toasted. Is it likely this is the only thing that went or would have other stuff gone to, just wondering if it's worth geting looked at and repaired?

Many thanks for all the help

[Boyan Silyavski]

The VFD does not have so many things to check as you may think. Here is a link to basic testing, most of all test the rectifier. Is it worth it, who knows. A Siemens drive that had a blown part and cost me 20euros to repair was worth it, as it costs new 700euro. If problem was the rectifier it alone costs 200-300. At the same time a chinese drive costs 100 euro. At the other hand the Siemens had maximum frequency of 1000hz i believe and a cheap chinese drive has 400hz max frequency, that also may matter.