and if this solves the problem, we will be calling You Gunnar the next time since obviously we cant find a person in Finland to solve these problems.
This cost us 5500€. 6000$. plus about the same in wages.
So PEOPLE OUT THERE! MAKE SURE YOU KNOW WHAT YOURE DOING!
:*
Actually from 3 places. We have a fixed meter that measures power, voltage and current of individual phases for the whole cabinet. Then I checked output current from frequency converter and in addition to these two we also used clampmeter (or what it's called?) to measure current of a phase...
Motor cabling and internal cabinet cabling has been measured and ok.
Thats partly whats troubling here.
Im not an electrician, but if everything is measured and should be ok then how can half of the components in the cabinet burn? :D
We replaced one of the softstarters with frequency converter...
Circuit diagram attached.
In addition to the circuit attached, in parallel to control circuit and F1 we have F2 which has lighting (lamps) connected to it.
Our L is taken from 2nd phase (L2) and it is taken after the main fuses before the individual motor fuses.
So can a damaged SCR cause F2 (or...
The linecontactor is connected to RUN/ON contact of softstarter. Also the softstarter has indication for being "DEFECTIVE". I would think that this self diagnostics which it has would recognize burnt SCRs? For what i understand if it would be DEFECTIVE, resetting the fault wouldnt even be...
Hello
We have a small pumping station with 2 37kW pumps.
We added two sirius softstarters (2 phases controlled) with line contactors.
Control voltage and lighting are connected to 2nd phase with their own fuses.
First time we tried to start softstarter, plc and kwh meter burned.
After that...
