Sinoboom AB18EJ - Page 105

REPAIR PROCEDURES
AB18EJ&18HJ Maintenance Manual 6-23 © Oct 2020
Fault
code
Description
Cause Check
0424
Reduced overvoltage
performance of RR motor
controller
0025
Invalid 5V internal power
supply of pump motor
controller
Exterally connected
device fault
1. Check the externally connected device for
damage;
2. Using handhold unit check monitor/outputs
menu/5 Volts;
3. Disconnect externally connected 5V
devices, if the fault still exists, replace the
external devices.
Note：The pin #26 of the 35–pin controller
connector is for 5V output.
0125
Invalid 5V internal power
supply of FL motor
controller
0225
Invalid 5V internal power
supply of FR motor
controller
0325
Invalid 5V internal power
supply of RL motor
controller
0425
Invalid 5V internal power
supply of RR motor
controller
0026
Driver 6 output error of
pump motor controller
Externally connected
device fault
1. Using handhold unit check monitor/digital
out6 ，to inspect the driver 6 signal output
percentage;
2. Check the drive device of driver 6 for
malfunctions, correct wiring,and current
not exceeding 1A.
Note：The pin #19 of the 35–pin controller
connector is for drive 6 output.
0126
Driver 6 output error of FL
motor controller
0226
Driver 6 output error of FR
motor controller
0326
Driver 6 output error of RL
motor controller
0426
Driver 6 output error of RR
motor controller
0027
Driver 7 output overcurrent
of pump motor controller
Externally connected
device fault
1. Using handhold unit check monitor/digital
out7 ，to inspect the driver 7 signal output
percentage;
2. Check the drive device of driver 7 for
malfunctions, correct wiring,and current
not exceeding 1A.
Note：The pin #20 of the 35–pin controller
connector is for driver 7 output.
0127
Driver 7 output overcurrent
of FL motor controller
0227
Driver 7 output overcurrent
of FR motor controller
0327
Driver 7 output overcurrent
of RL motor controller
0427
Driver 7 output overcurrent
of RR motor controller
0028
Reduced overheat
performance of pump
motor controller
1. Motor temperature
reaching the preset
limit;
2. Improper set up motor
temperature.
1. Check the motor temperature sensor for
damage;
2. Check the motor temperature setup of
controller for error; and check programme/
motor menu/temperature control
temperature hot for overheat performance
deceleration value setup;
3. Monitor the machine operating current to
determine whether the overheat results
0128
Reduced overheat
performance of FL motor
controller
0228
Reduced overheat
performance of FR motor
controller