YASKAWA NX100 - Page 170

8.3 Alarm Message List
8-66
4323 AMPLIFIER
OVER LOAD
(INSTANT)
--- The torque a several times as much
as the motor rated torque has con-
tinuously been applied for a certain
period.
• Check the wiring and connection for the
motor power line, motor type, manipulator
interference, SERVOPACK, and circuit
boards.
Replace if necessary.
4324 CONVERTER
OVER LOAD
--- The total load value of all the
motors connected to the converter
exceeded the converter rating.
Review the manipulator operating condition
such as reducing the teaching speed, etc.
4326 SPEED ERROR --- The speed exceeded the limit due
to:
- Motor cable disconnection
- Incorrect motor type
- Motor failure
- Defective board
- External force applied to manipu-
lator, etc.
Check the motor, board, manipulator motion
(influence by external force), and taught ori-
entation.
4327 MOTOR ROTA-
TION ERROR
--- While the motor is accelerating, the
direction of the torque and the
speed was detected as being the
opposite of what it was supposed to
be.
Check the wiring and connection for the
encoder and the motor power line.
4328 SERVO TRACK-
ING ERROR
--- The axis deviated from the speci-
fied position and motion path
beyond the allowable range.
• Check the manipulator interferences and
motor power line.
If the error occurs again, replace the servo
control circuit board, and/or the amplifier or
motor of the corresponding axis.
4329 POSITION
ERROR
--- The number of pulses generated by
one motor rotation does not agree
with the specified value due to:
- Noise from external devices
- Defective board
- Motor failure
• Check for the external noise.
• Provide noise protection such as installing a
ferrite core if required.
If the error occurs again, replace the servo
control circuit board, external axis servo con-
trol circuit board, and/or motor.
4330 SPEED MONI-
TORING
INSTRUCTION
CABLE DISCON-
NECTION
--- The read speed monitoring level
signal is disconnected.
Check the connection cables for speed moni-
toring unit.
4331 SPEED MONI-
TORING LEVEL
ERROR
--- Illegal speed monitoring level • Turn the power OFF and back ON.
If the error occurs again, replace the AXA01
circuit board.
4332 POSITION
ERROR (SERIAL
ENCODER)
--- The number of pulses generated by
one motor rotation does not agree
with the specified value due to:
- Noise from external devices
- Defective board
- Motor failure
• Check for the external noise.
• Provide noise protection such as installing a
ferrite core if required.
If the error occurs again, replace the servo
control circuit board, external servo control
circuit board, and/or motor.
4334 OVER VOLTAGE
(CONVERTER)
--- The DC voltage supplied to the
amplifier exceeded 420V due to:
- Overloaded
- Converter failure
- Defective servo control circuit
board
• Check the primary power supply voltage.
• Reduce the teaching speed and check if the
error occurs. If the error does not occur with
the reduced speed, review the load condi-
tion.
If the error occurs again, replace the servo
control circuit board and/or the converter.
Alarm Message List
Alarm
Number
Message
Sub
Code
Cause Remedy