HANGCHA A Series - Page 102

98
Code
Programmer display
Probable fault reason
Deep fault
reason/troubleshooting
Fault display
short circuit, restart output.
33 Coil3 Driver Open/Short
Driver 3 output shut
1. Connected load open or short.
2. Connecting pin stained.
3. Wrong wiring.
Reason：
Driver 3 output (pin 4) is
either open or shorted
Troubleshooting：
Correct open or
short circuit, restart output.
34 Coil4 Driver Open/Short
Driver 4 output shut
1. Connected load open or short.
2. Connecting pin stained.
3. Wrong wiring.
Reason：
Driver 3 output (pin 3) is
either open or shorted
Troubleshooting：
Correct open or
short circuit, restart output.
35 PD Open/Short
PD shut
1. Connected load open or short.
2. Connecting pin stained.
3. Wrong wiring.
Reason：
PD(pin 2) is either open
or shorted
Troubleshooting：
Correct open or
short circuit, restart output.
36 Encoder Fault
Electromagnetic brake disconnects
1. Motor encoder error.
2. Wrong wiring.
Reason：Encoder fault
Troubleshooting：Restart key
switch.
37 Motor Open
Motor stops working
Main contactor disconnects
Electromagnetic brake disconnects
Throttle invalid
Brake
Pump stops working
1. Motor phase is open.
2. Wrong wiring.
Reason：Motor phase, U,V,W
detected open
Troubleshooting：Check phase
and restart the key switch.
38 Main Contactor Welded
Motor stops working
Main contactor disconnects
Electromagnetic brake disconnects
Throttle invalid
Brake
Pump stops working
1. Main contactor tips are welded.
2. Motor phases U and V is
disconnected or open.
3. An alternate voltage path is
providing a current to capacitor( B+
connection terminal)
Reason：
Main contactor keep too
much connecting, capacitor
voltage can’t discharge.
Troubleshooting：Restart the key
switch
39 Main Contactor Did Not Close
Motor stops working
Main contactor disconnects
Electromagnetic brake disconnects
Throttle invalid
Brake
Pump stops working
1. Main contactor does not close
2. Contactor contacts have
oxidized, melted, or connection
status is unstable.
3. External load on the capacitor.
4. Fuse protector disconnects.
Reason：
When the main contactor
is closed, capacitor voltage does
not charge B+ voltage.
Troubleshooting：Check the
contactor, restart the key switch.
41 Throttle Wiper High
Throttle invalid
1. Throttle pot wiper voltage too
high
Reason： Throttle pot wiper(pin
16) voltage is higher than the high
fault threshold(can be changed
with the VCL function