Gildemeister NEF 480 Retrofit

L2 ( my 2nd Phase on the first phase are already the Computer and 5 and 24V power supply the second drive is on L3 ) to L1
L2 empty
N to L3

L2 to L2C (I use two breakers one for the control loop and one for the main loop)
N to L1C


B2 and B3 are Bridged.
Motor is not connected.

DI0 (Servo enable) is low
DI1(Alarm release) is low

And within 30 sec its getting hot.

With all the VFD‘s I used fo far they never went warm so quick and never without motor load.

You are in Europe and have 380V or 400V 3 phase aren't you? 220V three phase is a US thing.

I can't follow what you wrote. When you talk about connecting a single phase and it getting hot, are you connecting between phase and neutral (= 230V) or are you connecting between two phase wires (= 400V).
Mark

I am connecting between a single phase an neutral (230V)
But since this is making troubles I was thinking about using a 3x400 V to 3x220V Transformer. And was wondering if one of my old ones might fit, but it turned out they don‘t.

But as it seems I am doing everything right I will give the 2nd drive a chance. Maybe there is simply something wrong with the first.

Many thanks fo all the support here!

Did you determine L and N based on color? Have you measured the voltage? Some electricians are either color blind, or consider color coding as more of an optional recommendation than a standard.

Since I did all the wiring the colors / Numbers should be correct.
But I will rewire to make before starting the 2n one

Wiring is correct, that should not get hot.

Are you shure you have an proper "N".?

Wenn der N in der Verteilung fehlt, oder die Maschine an ner alten 4 adrigen "Bauerndrehstrom"Dose ohne N hängt. Kann es passieren das du im Schaltschrank 400V zwischen N und Phase hast, da der Sternpunkt fehlt. Mess mal ob der N am Servoregler Verbindung zum N von ner normalen Schuko Dose im Raum hat...