HANGCHA A Series - Page 100

96
Code
Programmer display
Probable fault reason
Deep fault
reason/troubleshooting
Fault display
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 vol
tage
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 consumpt
ion 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
Regenerat
ive braking torque
reduces.
1. During regenerative braking,
regenerative braking current cause
the raising of battery voltage.
2. Setup error of battery parameter.
3. Too large battery impedance.
4. When regenerating braking,
battery disconnects.
Reason：Wh
en MOSFEET axle
working, capacitor voltage
exceeds the maximum voltage
limit.
Troubleshooting ：
Reduce
capacitor voltage.
25 +5V Supply Failure
No fault(unless VCL set the
incurred fault)
1. External load impedance is too
low.
Reason： 5V supply outside the
5V±10% range
Troubleshooting ：
Bring voltage
within range.
26 Digital Out 6 Failure
Digital Out 6 driver is not active.
1. External load impedance is too
low.
Reason：
Digital Output 6 current
exceeds15mA.
Troubleshooting：
Adjust load, set
“set_digout()” by VCL, and restart.
27 Digital Out 7 Overcurrent
The Digital Out 7 driver is not
active
1. External load impedance is too
low.
Reason：
Digital Output 7 current
exceeds15mA.
Troubleshooting：
Adjust load, set