soft starter tripping issue
soft starter tripping issue
(OP)
Dears
We have ABB ACS5000 as a soft started for compressor motor (7.5MW). Recently we are facing overcurrent issue in soft starter while starting the motor. We have done trouble shooting for the motor, cable transformer all of them working fine and no abnormality and we could not found solid reason for overcurrent trip. Sometimes soft starter is working fine and sometimes its tripping on overcurrent even with no load (uncoupled condition)while we are doing SOLO-run.
what is the possible cause for this problem
We have ABB ACS5000 as a soft started for compressor motor (7.5MW). Recently we are facing overcurrent issue in soft starter while starting the motor. We have done trouble shooting for the motor, cable transformer all of them working fine and no abnormality and we could not found solid reason for overcurrent trip. Sometimes soft starter is working fine and sometimes its tripping on overcurrent even with no load (uncoupled condition)while we are doing SOLO-run.
what is the possible cause for this problem





RE: soft starter tripping issue
"You measure the size of the accomplishment by the obstacles you had to overcome to reach your goals" -- Booker T. Washington
RE: soft starter tripping issue
RE: soft starter tripping issue
My colleague had a problem with the similar regulator ACS 2000 and I know that there is good software and registry errors *I think name is black box * where it can be taken all the defects in real time. Unfortunately before good analysis he suspected thyristors and tried to change them randomly with spare which they had .
Finally, someone had to come from ABB and found that the initial failure was just high temperature in the cabinet .
Spare thyristor blocks which they bought from ABB as spare parts did not have latest firmwave and that they without their assistance and good price of their work totally useless .
A good idea is to immediately call someone from ABB .
What message do you get on the panel after fault .
Good luck
RE: soft starter tripping issue
RE: soft starter tripping issue
RE: soft starter tripping issue