Yaskawa SGDH Linear Sigma Series - Manual (Page 363)

11.1 Troubleshooting
11-11
11
A.71
A.72 Overload
A.71: High Load
A.72: Low Load Occurred when the
control power sup-
ply was turned ON. A SERVOPACK board fault occurred. Replace the SERVOPACK.
Occurred when the
servo was ON. The servomotor wiring is incorrect or the connection
is faulty. Correct the servomotor wiring.
The encoder wiring is incorrect or the connection is
faulty. Correct the encoder wiring.
A SERVOPACK fault occurred. Replace the SERVOPACK.
Occurred when the
servomotor did not
run by the refer-
ence input. The servomotor wiring is incorrect or the connection
is faulty. Correct the servomotor wiring.
The encoder wiring is incorrect or the connection is
faulty. Correct the encoder wiring.
The starting force exceeds the maximum force. Reconsider the load and operation conditions, or
reconsider the servomotor capacity.
The polarity detection is not performed properly
(when Pn080.0 = 1 is set.) Correct the settings for the polarity detection
related parameter.
A SERVOPACK fault occurred. Replace the SERVOPACK.
Occurred during
normal operation. The actual force exceeds the rated force or the start-
ing force largely exceeds the rated force. Reconsider the load and operation conditions, or
reconsider the linear servomotor capacity.
Temperature in the SERVOPACK panel is high. Reduce the in-panel temperature to 55 ° or less.
A SERVOPACK fault occurred. Replace the SERVOPACK.
A.73 Dynamic Brake
Overload Occurred when the
control power sup-
ply was turned ON. A SERVOPACK board fault occurred. Replace the SERVOPACK.
Occurred when the
servomotor was
running and in a sta-
tus other than servo
OFF. A SERVOPACK board fault occurred. Replace the SERVOPACK.
Occurred when the
servomotor was
running in servo
OFF status. The kinetic energy at a DB stop exceeds the DB
resistance capacity. cReduce the motor speed,
dReduce the load mass, or
eReduce the number of times of the DB stop
operation.
A SERVOPACK fault occurred. Replace the SERVOPACK.
A.74 Overload of
Surge Current
Limit Resistor
(Detected when
the number of
times that the
main circuit’s
power is turned
ON or OFF more
than 10 times/2
seconds.) Occurred when the
control power sup-
ply was turned ON. A SERVOPACK board fault occurred. Replace the SERVOPACK.
Occurred during
operations other
than the turning
ON/OFF of the
main circuit. A SERVOPACK board fault occurred. Replace the SERVOPACK.
Occurred at the
main circuit power
supply ON/OFF
operation. The surge current limit resistor operation frequency
at the main circuit power supply ON/OF operation
exceeds the allowable range. Reduce the number of times that main circuit’s
power supply can be turned ON/OFF to 5 times/
min. or less.
A SERVOPACK fault occurred. Replace the SERVOPACK.
A.7A Heat Sink
Overheated
(Detected when
the heat sink tem-
perature exceeds
100
× °
C.)
Occurred when the
control power sup-
ply was turned ON. A SERVOPACK fault occurred. Replace the SERVOPACK.
The overload alarm has been reset by turning OFF
the power too many times. Change the method to reset the alarm.
Occurred when the
main circuit power
supply was turned
ON or while the ser-
vomotor was run-
ning. The load exceeds the rated load. Reconsider the load and operation conditions, or
reconsider the servomotor capacity.
The SERVOPACK ambient temperature exceeds
55
°C.
The ambient temperature must be 55 °C or less.
A SERVOPACK fault occurred. Replace the SERVOPACK.
Table 11.5 Alarm Display and Troubleshooting (Cont’d)
Alarm
Display
Alarm Name Situation at Alarm
Occurrence
Cause Corrective Actions