Keba ServoOne - Error 20: Hardware Limit Switch Error

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
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.