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11.6.21Error20:Hardwarelimitswitcherror

11.6.21.1Error20-1(emergencycode8612h)

Cause: Hardware limit switches interchanged

Suggested steps:

Check your hardware

Positionwaslimited

internally.

l Pleasecheckfactorgroupsettingandposition

command

l Takeascoperecordtodetermineifthe

positioncontrolovershoots.

Thereisaproblemwiththe

digital/analoginputs

l Pleasecheckthe24VI/Owiring,function

assignmentandinversionparameters.

l Pleasecheckconnectedswitchesfor

chattering.Considerusingtheinputfilter.

Thespeedcontrolmightrun

away,mostlikelyduetoa

wrongencoderoffset.

l Pleasecheckthattheencoderoffsetisset

properly.

l Ifautocommutationisused,re-viewtheauto

commutationsettingandtestunderall

possibleconditions.

l Iftorquemodeisused,reducetorque,ensure

externalspeedlimitation,orincreasespeed

controlgainforstrongerlimitation.

ID No.: 0842.26B.5-01Date: 09.2020

ServoOne- Device Help

386

11 Alarms & warnings

11.6.21.2Error20-2(emergencycode8612h)

Cause: Positive hardware limit switch (LSW_P) detected