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Error
Code
Error description
Fault Cause
Solution
E419 (0x) Driver board position
deviation is too large
1. The position deviation parameter
is set too small
2. Servo unit circuit board failure
3. UVW wiring of the servo motor is
abnormal (wire missing)
4. Poor gain adjustment of the servo
unit
5. The frequency of the position
command pulse is too high
6. The load conditions do not match
the specifications o f the motor
1. Reset the correct parameters
2. Replace the servo unit
3. Correct the motor (encoder) wiring
4. Increase the speed loop gain and posi-
tion loop gain
5. Slowly reduce the position command
frequency; add smooth function; re
evaluate the electronic gear ratio
6. Re-evaluate the load or motor capacity
E420 (0x) Driver board bus volt-
age phase loss
Refer to
Error Handling Method
E421 (0x) Drive board motor
phase sequence error
Reverse phase sequence
Measure with a multimeter to restore the
correct phase sequence
E422 (0x) Driver board rated
current input error
Spare alarm
E423 (0x) Driver board braking
resistor overload
Refer to
Error Handling Method
E424 (0x) Driver board absolute
encoder overheating
Refer to
Error Handling Method
E425 (0x) Driver board battery
voltage is too low
Refer to
Error Handling Method
E426 (0x) Driver board multi turn
position information lost
Battery type absolute encoder volt-
age is too low
Replacement battery
E427 (0x) Driver board driver and
motor do not match
Driver and motor power do not match
Servo drive uses current limit; torque is
limited to 50%
E428 (0x) Drive board origin
return failed
Refer to
E429 (0x) The driver board main
power is off
1. The voltage is too low
2. Power failure
1. Increase the voltage
2. Maintenance power supply
E430
(0x) Driver board offset
angle failed
Spare alarm
E431 (0x) The driver board is
powered off and restarted
Refer to
Error Handling Method
E432 (0x) Driver board initializa-
tion LAN9252 error
Spare alarm
E433
(0x) Communication be
-
tween driver board DSP
and ESC is interrupted
Spare alarm
E434 (0x) The communication
between the driver board
and the host is interrupted
through a network cable
Spare alarm
E435 (0x) Driver board PDO
communication parameters
are read only
Spare alarm
E436 (0x) No index for driver
board PDO communication
Spare alarm
