HANGCHA CDD12-AC1 - Page 112

108
Code
Programmer display
Probable fault reason
Deep fault
reason/troubleshooting
Fault display
Pump stops working
16 Controller Severe Overtemp
Motor stops working
Main contactor disconnects
Electromagnetic brake disconnects
Throttle failure
Brake, pump stops working
1. Severe controller
working
environment.
2. Truck overloads.
3. Incorrect controller mounting
Reason：
Radiator temperature is
higher than 95℃.
Troubleshooting：
Drop the temp
below 95℃
. Restart the key
switch or interlock switch.
17 Severe Undervoltage
Driving torque reduce
1. Setup error of battery parameter.
2. Power consumption of non
controller system.
3. Too large battery impedance.
4. Battery disconnects.
5. Fuse protector disconnect, or the
main contactor disconnect.
Reason：
When MOSFEET axle
working, capacitor voltage is
lower than the minimum voltage
limit.
Troubleshooting ：
Raise the
capacitor voltage.
18 Severe Overvoltage
Motor stops working
Main contactor disconnects
Electromagnetic brake disconnects
Throttle invalid
Brake
Pump stops working
1. Setup error of battery parameter.
2. High battery impedance.
3. Battery disconnects when
regenerative breaking.
Reason：
When MOSFEET axle
working, capacitor voltage
exceeds the minimum voltage
limit.
Troubleshooting ：
Reduce the
voltage and then restart the key
switch.
21 Controller Undertemp Cutback
No fault(unless VCL set the
incurred fault)
1. Controller works in limited
condition.
2. Severe controller working
environment.
Reason：Radiator temperature
is
lower than-25℃.
Troubleshooting ：
Make the
radiator temperature higher than
-25℃.
22 Controller Overtemp Cutback
Drive or regenerative braking
torque reduces.
1. Severe controller working
environment.
2. Truck overloads.
3. Incorrect controller mounting
Reason：
Radiator temperature
exceeds 85℃.
Troubleshooting ：
Reduce the
temperature.
23 Undervoltage Cutback
Driving torque reduces
1. Insufficient battery power.
2. Setup error of battery parameter.
3. Power consumption of non
controller system.
4. Too large battery impedance.
5. Battery disconnects.
6. Fuse protector disconnects or
main contactor disconnects.
Reason ：
Too low capacitor
voltage.
Troubleshooting：
Raise capacitor
voltage.
24 Overvoltage Cutback
Regenerative braking torque
reduces.
1.
During regenerative braking,
regenerative braking current cause
the raising of battery voltage.
2. Setup error of battery parameter.
Reason：
When MOSFEET axle
working, capaci
tor voltage
exceeds the maximum voltage
limit.