100
encoder
CRC check error of absolute
encoder
AL009
：
Encoder Error 3
Fault Causes
Check
Solution
AB signal error of incremental
encoder
Same with
AL007
Same with
AL007
Communication error of
absolute encoder
AL00A
：
Under voltage
Fault Causes
Check
Solution
Main circuit input voltage is
lower than the rated voltage
value allowed
Check if input voltage and the
wiring are normal
Check the mains supply
No voltage on the input side of
the mains circuit
Check if the main circuit voltage is
normal
Check the power supply switch
Power supply error
Check if the power is consistent
with the specification
Use the correct power supply
AL00B
：
Overvoltage
Fault Causes
Check
Solution
Main circuit input voltage is
higher than the rated voltage
allowed
Check if the main circuit voltage is in
the allowable range
Use the correct power supply
Power input error
Check if the power is consistent with
the specification
Use the correct power supply
Motor decelerates too fast
Check if the system inertia is too large
and decelerates too fast
Increase the deceleration time, or use a
suitable external braking resistor
Drive hardware fault
Measuring the main circuit voltage is
in the allowable range, and the fault
still occurs when the motor is not
running
Send back to the dealer or the factory for
check
AL00D / AL00E
：
Motor Overload / Drive Overload
Fault Causes
Check
Solution
Continuous use above the
rated load
1
：
Monitor P0-01 if it is continuously
more than 100%
2
：
Monitor P0-12 if it is continuously
more than the rated value
1
：
Increase motor capacity or reduce load
2
：
Increase drive capacity or reduce load
Motor, encoder wiring error Check the U, V, W and encoder wiring Correct wiring
Set control parameter
improperly
1
：
if mechanical oscillates and the
motor sounds abnormally
2
：
Acceleration and deceleration are
too fast
1
：
Adjust the position, velocity gain
value
2
：
Reduce acceleration and deceleration
time
Drive or motor fault
Exclude above problems
Send back to the dealer or the factory for
check
AL010
：
Drive Overheat
Fault Causes
Check
Solution
Ambient temperature is too
high
Check if the ambient temperature and
humidity are in the permitted range
Improve the installation environment
Cooling fan of the drive is
damaged
Check if the cooling fan is running
during operation
Replace the fan which is not running
The cooling of servo drive is
affected
1
：
Check if the drive installation
follows the requirements
2
：
Check if the drive‘s heat sink is
blocked
1
：
Install the drive properly, refer to
Chapter II
2
：
Clean up the blockage
AL012
：
Overspeed
Fault Causes
Check
Solution
UVW phase sequence error
Check if the phase sequence of UVW
is correct
Wiring as per correct phase sequence
