Question about Inverter KEB COMBIVERT F5

2 Answers

Always showing alarm EOC,EOP

By this inverter run 45 kw hydraulic motor with encoder. when i press motor start button the motor run few second and stop. inverter showing alarm EOC,EOP.i fixd this inverter to run another motor that time i don't get any alarm. please any body help me. from 10 days my machine stop i can't run the production please please help me.if possible send me email parvez.bsn@gmail.com parvez,Bangladesh

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  • Masud rana parvez
    Masud rana parvez Apr 01, 2015

    no any idea?

  •  johnny rebel
    johnny rebel Apr 01, 2015

    CALL THE COMPANY,I GAVE YOU A LIST OF NUMBERS,THEY ARE TOO TECHNICAL TO GIVE ANSWERS ON HERE

  • Masud rana parvez
    Masud rana parvez Apr 01, 2015

    this my keb details. please some advice

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The system that you described is a closed-loop system. The inverter tells the motor what to do and the encoder send information back to the inverter to verify the operations.

With out knowing part# and serial number of the unit in question, I do not know exactly which inverter you are having problems with.

With E.OC error, there is a lot of current demand on the inverter. This could mean a short in the motor, motor leads, connections or inside of the inverter. This could also be caused by the encoder feedback loop being defective. If the inverter tells the motor to run at 1000rpm and the feedback tells the inverter it is only running at 5rpm, the inverter will send out more current to get the motor up to speed.

Since you are getting multiple errors, there could be other internal problems with the inverter especially if the unit is old and contaminated internally.

Posted on Jun 03, 2015

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