YASKAWA NX100 - Page 171

8.3 Alarm Message List
8-67
4335 EARTH FAULT --- Ground fault of the motor power
line occurred due to:
- Motor failure
- Ground fault of motor line or lead
cables
- Defective servo control circuit
board
- Defective SERVOPACK
• Check the motion connection.
• Remove the motor connector to check the
conduction.
If there is conduction, replace the lead cable;
if there is no conduction, replace the servo
control circuit board.
4336 OPEN PHASE
(Converter)
--- The SERVOPACK primary power
supply is open-phase due to:
- Misconnection of primary power
supply
- Lowered primary power supply
voltage
- Defective servo control circuit
board
- Defective converter
• Correct the SERVOPACK primary power
supply connection,
• Confirm that the power supply voltage is
more than 170V.
If the error occurs again, replace the servo
control circuit board.
4337 OVER
CURRENT
(AMPLIFIER)
--- Ground fault of the motor power
line occurred due to:
- Motor failure
- Ground fault of motor line or lead
cables
- Defective servo control circuit
board
- Defective amplifier
• Check the motion connection.
• Remove the motor connector to check the
conduction. If there is conduction, replace
the lead cable; if there is no conduction,
replace the servo control circuit board.
• If no fault is found, turn OFF the power sup-
ply to cool down the motor. If this natural
cooling solves the problem, the load condi-
tion and ambient operating temperature
must be reviewed and corrected.
4338 REGENERA-
TION ERROR
(CONVERTER)
--- The regenerative energy at motor
deceleration is too large.
- The primary power supply voltage
is too high (above 242V)
- Converter failure
- Defective servo control circuit
board
• Review the load condition and teaching
speed.
• Confirm that the power supply voltage is
220V ±10%.
If the error occurs again, replace the servo
control circuit board.
4339 INPUT POWER
OVER VOLTAGE
(CONV)
--- The SERVOPACK primary power
supply voltage exceeded 242V.
• Confirm that the power supply voltage is
220V ±10%.
If the error occurs again, replace the servo
control circuit board or the converter.
4340 TEMPERATURE
ERROR
(CONVERTER)
--- SERVOPACK (converter) overheat • Confirm that the power supply voltage is
220V ±10%.
If the error occurs again, replace the servo
control circuit board or the converter.
4344 LINEAR SERVO
FLOAT TRACK-
ING ERROR
--- The deviation of X, Y, and Z-axis
exceeded the allowable limit while
the linear servo float was in execu-
tion.
Check the job.
4345 LINK SERVO
FLOAT ERROR
--- The link servo float can not be exe-
cuted while the linear servo float is
in execution.
Check the job.
4346 LINK SERVO
FLOAT LIMITA-
TION TORQUE
RANGE ERROR
-
-- The limit torque of the link servo
float condition file is outside the
specified range.
Set the limit torque of the link servo float con-
dition file again.
4347 LINEAR SERVO
FLOAT LIMITA-
TION TORQUE
RANGE ERROR
--- The limit torque of the linear servo
float condition file is outside the
specified range.
Set the limit torque of the linear servo float
condition file again.
4348 LINEAR SERVO
FLOAT COORDI-
NATES TYPE
UNMATCH
--- While the linear servo float was in
execution, another request of linear
servo float execution was sent with
a different coordinates specified.
Check the job.
Alarm Message List
Alarm
Number
Message
Sub
Code
Cause Remedy