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KEB F5 = DC Bus voltage coming, Control card OK, but Display Power Not found, how do solve this problem.

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I have a KEB combivert F5. The parameter ru 00 shows nop even if i give switching to terminal 16 for control release.Please help.

This may be due to the inverter waiting for an ST signal via buss communications.

What is the part # of the unit in question?

The inverter is recognizing that terminal 16 is going active but still waiting for another command to enable the inverter.

E.puci error

E.puci = Power Unit Code Invalid.

When the inverter is powered up the power stage can not be identified by the control card or the power stage is the wrong type for the control card.

Typically can not be reset and unit needs to be repaired or replaced.

Contact OEM of machine or KEB for additioanl support

We got EUPH warning. the motor running in wild mode. how to fix

E.uPh due to the ripple detection of the DC bus. This is typically caused by a missing phase on the input side of the inverter.

Measure your mains voltage L1-L2, L2-L3, L1-L3 and L1-ground, L2-ground, L3-ground to verify that your supply voltage is balanced and withing the rated specifications.

If the applied voltage is good then there is a problem with the input stage or the DC bus and the unit will need to be repaired or replaced.

F5 KEB inverter nop problem

If using bus communications (Can, ProFi, Mod, ext), there may be a communications command (Software signal) that is not being provided. Hardware and software enable signal required to obtain LS.

Possible that the terminal on the control card is bad due to miss connection or signals outside of the rated value.

How can we fixed if the error display is E.EnC1

There is a problem with the channel 1 feedback loop.

Possible causes:
Loose connection at encoder or feedback card.
Defective feedback cable.
Defective encoder.
Defective feedback card.
Defective control card.
Defective inverter.

Under voltage f4

Measure the applied AC voltage phase to phase and phase to ground to verify that it is present and correct.

If you can connect to the inverter with the COMBIVIS software, look in the ru parameters to see what the inverter is actually measuring the DC bus voltage at.

Ac mains voltage x 1.414 = @ DC bus voltage.

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.

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.

I have a proble with keb f5 inverter its capacitors and rectfier bridge was damage i changed it but now it gives an error E.PU. plz suggest me the solution.a thick film 05.f0.0019 alo seems to be damage.

Most likely when the DC bus capacitors and input rectifier were damaged, it also damaged the circuit board.

Wiser to replace inverter or send it in to a KEB facitlity to be repaired.
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