3.2.4 Fault code table3.2.4 Fault code table
This fault codes This fault codes provide the following information:provide the following information:
––
Fault codeFault code
–– Display fault name on the Curtis programmerDisplay fault name on the Curtis programmer
–– Display caused by the faultDisplay caused by the fault
––
Probable fault reasonProbable fault reason
–– Fault deep reasonFault deep reason
–– TroubleshootingTroubleshooting
When there is fault, if When there is fault, if it’s affirmed not the wiring error or truck malfunction, you can it’s affirmed not the wiring error or truck malfunction, you can try to restarttry to restart
through key switch. If fault still exists, please turn down key switch, check if the connector of pinthrough key switch. If fault still exists, please turn down key switch, check if the connector of pin
35 connects right or gets dirt, after repair and clean , 35 connects right or gets dirt, after repair and clean , reconnect, and then start again.reconnect, and then start again.
Fault code tableFault code table
CodeCode
Programmer displayProgrammer display
Probable fault reasonProbable fault reason
Deep faultDeep fault
reason/troubleshootingreason/troubleshooting
Fault displayFault display
1212
Controller OvercurrentController Overcurrent
Motor stops workingMotor stops working
Main connector disconnectsMain connector disconnects
EM brake shutdownEM brake shutdown
Throttle invalidThrottle invalid
BrakeBrake
Pump stops workingPump stops working
1. External short of phase U,V,W1. External short of phase U,V,W
motor connectionsmotor connections
2. Motor parameters do not2. Motor parameters do not
match.match.。。
3. Controller malfunction3. Controller malfunction
ReasonReason：：Phase current exceedsPhase current exceeds
limited currentlimited current
TroubleshootingTroubleshooting：：restart the keyrestart the key
switchswitch
1313
Current Sensor FaultCurrent Sensor Fault
Motor stops workingMotor stops working
Main connector disconnectsMain connector disconnects
Electromagnetic brake disconnectsElectromagnetic brake disconnects
Throttle invalidThrottle invalid
Brake, Pump stops workingBrake, Pump stops working
1. Leakage to vehicle frame from1. Leakage to vehicle frame from
phase U,V, or Wphase U,V, or W
2. Controller malfunction2. Controller malfunction
ReasonReason：：Deviation reads out toDeviation reads out to
controller current controller current sensorsensor..
TroubleshootingTroubleshooting
：：
restart the keyrestart the key
switchswitch
1414
Precharge FailedPrecharge Failed
Motor stops workingMotor stops working
Main connector disconnectsMain connector disconnects
Electromagnetic brake disconnectsElectromagnetic brake disconnects
Throttle invalidThrottle invalid
BrakeBrake
Pump stops workingPump stops working
1. External load on positive1. External load on positive
terminal of the capacitor thatterminal of the capacitor that
prevents the capacitor fromprevents the capacitor from
charging.charging.
ReasonReason
：：
Key switch input voltageKey switch input voltage
failed to charge the failed to charge the capacitorcapacitor..
TroubleshootingTroubleshooting
：：
Reset or Reset or
re-input interlock switch throughre-input interlock switch through
VCL function precharge().VCL function precharge().
1515
Controller Severe UndertempController Severe Undertemp
Motor stops workingMotor stops working
Main contactor disconnectsMain contactor disconnects
Electromagnetic brake disconnectsElectromagnetic brake disconnects
Throttle failureThrottle failure
BrakeBrake
Pump stops workingPump stops working
1. Severe controller working1. Severe controller working
environment.environment.
ReasonReason：：Radiator temperature isRadiator temperature is
lower than -40lower than -40
℃℃
..
TroubleshootingTroubleshooting：：Raise the tempRaise the temp
above -40above -40
℃℃
, restart the key, restart the key
switch or interlock switch.switch or interlock switch.
1616
Controller Severe OvertempController Severe Overtemp
Motor stops workingMotor stops working
Main contactor disconnectsMain contactor disconnects
Electromagnetic brake disconnectsElectromagnetic brake disconnects
Throttle failureThrottle failure
Brake, pump stops workingBrake, pump stops working
1. Severe controller working1. Severe controller working
environment.environment.
2. Truck overloads.2. Truck overloads.
3. Incorrect controller mounting3. Incorrect controller mounting
ReasonReason：：Radiator temperature isRadiator temperature is
higher than 95higher than 95
℃℃
..
TroubleshootingTroubleshooting
：：
Drop the tempDrop the temp
below 95below 95℃℃. Restart the key. Restart the key
switch or interlock switch.switch or interlock switch.
1717
Severe UndervoltageSevere Undervoltage
Too low voltageToo low voltage
Driving torque reduceDriving torque reduce
1. Setup error 1. Setup error of battery parameter.of battery parameter.
2. Power consumption of non2. Power consumption of non
controller system.controller system.
3. Too large battery impedance.3. Too large battery impedance.
4. Battery 4. Battery disconnects.disconnects.
5. Fuse protector disconnect, or5. Fuse protector disconnect, or
the main contactor disconnect.the main contactor disconnect.
ReasonReason
：：
When MOSFEET axleWhen MOSFEET axle
working, capacitor voltage isworking, capacitor voltage is
lower than the minimum voltagelower than the minimum voltage
limit.limit.
TroubleshootingTroubleshooting ：： Raise theRaise the
capacitor voltage.capacitor voltage.
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