REPAIR PROCEDURES
AB18EJ&18HJ Maintenance Manual 6-31 © Oct 2020
Fault
code
Description
Cause Check
0291
VCL/OS mismatch of FR
motor controller
0391
VCL/OS mismatch of RL
motor controller
0491
VCL/OS mismatch of RR
motor controller
0092
Invalid solenoid brake
setup of pump motor
controller
1. The machine moves
freely after solenoid
brake is triggered;
2. The holding force of
solenoid brake too
weak
1. Ensure the correct setup of solenoid brake
and accelerator;
2. Check the brake disc of solenoid brake to
determine whether it needs adjusting.
0192
Invalid solenoid brake
setup of FL motor
controller
0292
Invalid solenoid brake
setup of FR motor
controller
0392
Invalid solenoid brake
setup of RL motor
controller
0492
Invalid solenoid brake
setup of RR motor
controller
0093
Restricted encoder
operation of pump motor
controller
1. Motor rotary choke or
encoder fault causes
the restricted
operational position of
encoder to be
activated;
2. Improper wiring;
3. Machine rotary choke.
1. Check the encoder power supply and
ensure correct wiring;
2. Check the encoder setup for pulse count
(programme/motor menu/ encoder steps);
3. Check the encoder feedback speed
signals via monitor/motor menu/motor
speed A/B;
4. Replace the encoder
0193
Restricted encoder
operation of FL motor
controller
0293
Restricted encoder
operation of FR motor
controller
0393
Restricted encoder
operation of RL motor
controller
0493
Restricted encoder
operation of RR motor
controller
0094
Emergency reverse
response timeout of pump
motor controller
1. Emergency reverse
switch in cosed
position;
2. EmerTimer expires,
which leads to the
activation of
emergency reverse
timeout.
1. Use handhold unit to monitor (monitor /-
inputs menu/emer Rev), if it keeps in the
ON position, check the emergency reverse
switch;
2. Check the wiring of emergency reverse
switch;
3. Check the programming of emergency
reverse.
0194
Emergency reverse
response timeout of FL
motor controller
0294
Emergency reverse
response timeout of FR
motor controller
0394
Emergency reverse
response timeout of RL
motor controller