Question about Inverter KEB COMBIVERT F5

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How to adjust the Rated Motor Current in keb combivert f4-c. I cannot understand in manual

Hi i am working with Combivert F4-C and it is showing repeatedly E_OC and i checked the winding(Its Perfect). The motor is even running but the current peaks up even after extending acceleration time. Please Help

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  • 120 Answers

Run the motor with no load to see if it functions with no load.
If the system functions with no load, you may still need to increase your acceleration time to reduce the current demand.

What is the part# / serial# of the inverter in question?

Posted on May 08, 2014

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Posted on Jan 02, 2017

shahrameazim
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SOURCE: please i need a programming manual for KEB COMBIVERT F4 INVERTER

My KEB COMBIVERT F4 is faulty due to operational error, i want to reprogramme it so that it can function very well.The details of inverter are :ART-NR F4 C0G-4GV01/, SER NO. 00500101/0398540. You can send it to my e-mail -shahrameazimi@gmail.com. Thanks in anticipation.

Posted on Feb 21, 2014

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1 Answer

I have a keb F4 how i can have the factory setting


Registered users on the KEB website have access to the manuals which will provide details on programming the inverters.

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Can i change program from keb f4f t f4c


The F4-F is a closed loop vector inverter with feedback loop, F4-C is an open loop inverter.

Different functionality.

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RESET PASSWORD


Push the function and enter buttons at the same time until the display changes modes

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Hold the enter and function buttons on the keypad down at the same time until it the display flashes

Apr 17, 2014 | Inverter KEB COMBIVERT F5

1 Answer

E oc in f4


Error Over Current.

Disconnect motor leads at U/V/W terminals and run the inverter to determine if the problem is internal or external of the inverter.

If it is external then you are looking for a shorted winding in the motor or a shorted motor lead between the inverter and the motor.

Mar 05, 2014 | Inverter KEB COMBIVERT F5

1 Answer

E OC error in F4 KEB


Error. Over Current - Peak current exceeded

Possible causes:
Motor has a short - Phase to phase or phase to ground.
Motor cable damaged/defective.
Motor cables too long.
Acceleration/deceleration ramps too short.
Damaged output phase of inverter.
EMI

Mar 05, 2014 | Inverter KEB COMBIVERT F5

1 Answer

Need a Way to adjust dr.2 Rated Motor Current value. Combivert F4-C


It sounds like you may have a thermal issue causing the fault trigger of the E.OC error. This coould be an issue with the motor or the inverter getting too hot. Once the system trips into error it is allowed to cool a little and you can run again for a while.

What is the actual part# and serial # of the inverter that you are having problems with?

Since they system has been running, I would not suggest aultering the voltage/hz curves in the inverter because of an E.OC error.

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Please provide part# of the unit in question and manufacture of machine.

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