JUKI PS-800-12080 Instruction Manual page 62

Error Error description
Code
E419 (0x) Driver board position
deviation is too large
E420 (0x) Driver board bus volt-
age phase loss
E421 (0x) Drive board motor
phase sequence error
E422 (0x) Driver board rated
current input error
E423 (0x) Driver board braking
resistor overload
E424 (0x) Driver board absolute
encoder overheating
E425 (0x) Driver board battery
voltage is too low
E426 (0x) Driver board multi turn
position information lost
E427 (0x) Driver board driver and
motor do not match
E428 (0x) Drive board origin
return failed
E429 (0x) The driver board main
power is off
E430 (0x) Driver board offset
angle failed
E431 (0x) The driver board is
powered off and restarted
E432 (0x) Driver board initializa-
tion LAN9252 error
E433 (0x) Communication be-
tween driver board DSP
and ESC is interrupted
E434 (0x) The communication
between the driver board
and the host is interrupted
through a network cable
E435 (0x) Driver board PDO
communication parameters
are read only
E436 (0x) No index for driver
board PDO communication
Fault Cause
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
Reverse phase sequence
Battery type absolute encoder volt-
age is too low
Driver and motor power do not match Servo drive uses current limit; torque is
1. The voltage is too low
2. Power failure
– 59 –
Solution
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
Refer to E086 Error Handling Method
Measure with a multimeter to restore the
correct phase sequence
Spare alarm
Refer to E089 Error Handling Method
E090
Refer to Error Handling Method
Refer to E091 Error Handling Method
Replacement battery
limited to 50%
Refer to E094 Error Handling Method
1. Increase the voltage
2. Maintenance power supply
Spare alarm
Refer to E097 Error Handling Method
Spare alarm
Spare alarm
Spare alarm
Spare alarm
Spare alarm