Keba ServoOne - Error 3: Undervoltage Error; Error 4: Overvoltage Error

11.6.4Error3:Undervoltageerror
11.6.4.1Error3-1(emergencycode3120h)
Cause: Undervoltage in DC link
Suggested steps:
Re-start process when power is available. Please check grid conditions.
Anunder-voltageoccurred
onthedrivewhilethisaxis
wasswitchedon.
l Powersupplywaspossiblyswitchedoff.
l Pleasecheckiftheactualgridvoltagematches
thesupplysetting(parameterPST_
VoltageSupply)
l Verifythatthegridisstableunderload
condition.
11.6.4.2Error3-2(emergencycode3120h)
Cause: Undervoltage: Power fail function has reached minimum speed
Suggested steps:
Re-start process when power is available. Please check grid conditions and power
fail levels.
Anunder-voltageoccurred
onthedrivewhilethisaxis
wasswitchedon.
l Powersupplywaspossiblyswitchedoff.
l Pleasecheckiftheactualgridvoltagematches
thesupplysetting(parameterPST_
VoltageSupply)
l Verifythatthegridisstableunderload
condition.
ID No.: 0842.26B.5-01Date: 09.2020
ServoOne- Device Help
348
11 Alarms & warnings
11.6.5Error4:Overvoltageerror
11.6.5.1Error4-1(emergencycode3110h)
Cause: Overvoltage detected
Suggested steps:
Anover-voltageoccurred. l Pleasecheckiftheactualgridvoltagematches
thesupplysetting(parameterPST_
VoltageSupply)
l Over-voltagemaybecausedbyadecelerating
axis,possiblywithhighinertia.Reduce
decelerationramp.
l Considerusingabrakingresistorwithhigher
power.Ifthesupplyunithasaninternal
brakingresistor,pleasecontactyourservice
partner.
11.6.5.2Error4-2(emergencycode3110h)
Cause: Maximum DC-link mean potential deviation detected.
Suggested steps:
Thisispossiblyahardware
issue
Ifothermeasuresfailtosolvetheproblem,please
replacetheservocontroller.