Dear all

we have multi parallel inverter 700v 3.4 MW SIMOVERT INVERTER

Recently, the drive stopped without showing any fault message and give ready to start immediately

and start without any problem and nothing appearing on the drive monitor faults this is repeated more  than  10 times per day

the drive is connected to s7-300 PLC

WE CHECK  and replace  the CUVC CUSA ADB

Also , we check the motor oil pumps, fans temperature sensors

what is the expected reasons for this type of faults

Dr alaa abozaid

00201224570105

Check the drive start or run command for proper function.

Check if flying restart command is activated. 

dear sir

thank u for reply

how to Check the drive start or run command for proper function.

and how to check  flying restart command is activated

give me some details

thanks

Dear all

thank u for your co-operation

we found the reason it was the profibus socket to s7-plc

and we fix it

Welcome

It is good put

If you had a problem in the profibus , you would have an fualt message F82

Your problem was in the control word or in setpoint

Thank you

Dear sir

Tbe profibus cable cknnector  from scada system to skmovert plc was faulty