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Error assistance

5. Error Assistance

The following chapter shall help you to avoid errors as well as help you to determine and remove the cause of

errors on your own.

5.1 Troubleshooting

5.1.1 General

If errormessagesormalfunctionsoccurrepeatedlyduringoperation,therstthingtodoistopinpointtheexact

error.Todothatgothroughthefollowingchecklist:

- Is the error reproducible?

For that reset the error and try to repeat it under the same conditions. If the error can be reproduced, the

nextstepistondoutduringwhichoperatingphasetheerroroccurs.

- Does the error occur during a certain operating phase (e.g. always during regeneration)?

If so, consult the error messages and remove the causes listed there.

- Does the error occur or disappear after a certain time?

That may be an indication for thermal causes. Check, whether the COMBIVERT is used in accordance to

the ambient conditions and that no moisture condensation takes place.

5.1.2 Error messages and their causes

At KEB COMBIVERT error messages are always represented with an „E.“ and the appropriate error in the

display. Error messages cause the immediate deactivation of the modulation. Restart possible only after reset

or autoreset.

Malfunction are represented with an "A." and the appropriate message. Reactions to malfunctions can vary.

Status messages have no addition. The status message shows the current operating status of the inverter (e.g.

forward constant run, standstill etc.).

In the following the display and their cause are described.

Display COMBIVIS Value Meaning

Status Messages

nEtoF Power-off 64

Mains power failure; regenerative operation is further possible, if the

disconnecting time E.nEt (Pn.14) > 0 s

nO_PU Power unit not ready 13 Powercircuitnotreadyornotidentiedbythecontrol.

noP No operation 0 Control release (terminal ST) is not switched.

rEGEn Regeneration active 66 Regeneration active (regenerative operation)

Stb Standby 69 R6-S regenerative unit in stand-by operation (motor operation)

E.FnEt Error! Mains frequency 40 Mains frequency outside the adjusted tolerance range (cS.03)

further on next side

KEB combivert R6-S Applications Manual

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