20 Most Recent
Inverter KEB COMBIVERT F5 Questions & Answers
Power unit not ready
Do you mean no_Pu error?
Reason for error = 24Vdc is being applied to the control card but the mains voltage is not being applied to the power stage.
Inverter IGBT failuair again& again
If you are continually replacing the inverters, there may be an external issue causing the failures.
If you are continually replacing IGBT's on the same inverter, then there is most likely a problem with the circuit controlling the IGBT's.
KEB COMBIVERT F5 help
When ever you have a questions about a KEB Combivert inverter, it is best to provide as much information as possible. At a minimum provide the following:
Part# or art-nr
Serial # or ser-nr
Fault codes
Type of machine
Machine manufacture
Problem description
KEB manufactures many different types of F5 inverters and each type has different hardware, software and functionality. With the above information it is easier to provide a better solution to the problem.
KEB 07 F5 Error code E. Puch what will cause this error and how do i clear it
E.puch means that at power up the control card did recognized the power stage as different than last time it powered up.
This is normal when the control card is changed. If the control card has not been changed, there is a problem between the power stage and the control card.
Initialize the value at sy.03 to reset the error.
What does OL2 fault in KEB drive indicate?
Too much current is being required with the motor shaft not rotating. This is most likely a parameter adjustment issue with the motor data, torque limits and protective functions.
Possible motor issue as well.
What is no_PO error
no_PU = No power unit. 24Vdc is being supplied to the control card with no AC voltage (230 or 400) being supplied to L1/L2/L3.
Verify AC voltage is present at L1/L2/L3.
*If not present, apply voltage and no_PU should clear.
*If present and unit still no_PU, there is a problem with the power stage. At that point unit should be replaced or repaired.
How to save the parameters in KEB F5
Here is how to use the keypad. If a decimal shows up after the value is changed, enter must be pressed to save the value.
Also insure that the inverter is not enabled or in nOP status.
The inverter not work and all signals good
Verify the mains voltage at terminals L1/L2/L3. If it is present but the inverter does not power up, there is most likely an internal problem.
What is the part# of the unit in question?
General fault 142error
This does not appear to be a KEB error code. If this code is on on your HMI, contact the machine manufacture to determine what this error means.
Always showing alarm EOC,EOP
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.
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