8. TROUBLESHOOTING
8 - 22
Alarm No.47
Name: Cooling fan error
Stop method: All axes stop
Alarm description
Cooling fan speed of the servo amplifier is decreased.
Cooling fan speed drops to the alarm level or lower.
Display Name
Cause
Checkpoint
Finding
Action
47.1
Cooling fan stop
error
(1) Foreign matter is caught
in the cooling fan.
Check for foreign matter
caught in the cooling fan.
Foreign matter is
caught.
Remove the foreign
matter.
Foreign matter is not
caught.
Check (2).
(2) Cooling fan life expiration. Check if the fan is
stopped.
Fan is stopped.
Replace the servo
amplifier.
47.2
(1) Foreign matter is caught
in the cooling fan.
Check for foreign matter
caught in the cooling fan.
Foreign matter is
caught.
Remove the foreign
matter.
Decreased
cooling fan speed
error
Foreign matter is not
caught.
Check (2).
(2) Cooling fan life expiration. Check the cumulative
power supply time of the
servo amplifier.
Life is expired.
Replace the servo
amplifier.
Alarm No.50
Name: Overload 1
Stop method: Corresponding axis stops
Alarm description
Load exceeds overload protection characteristic of servo amplifier.
Display Name
Cause
Checkpoint
Finding
Action
50.1
(1)
Activated.
Review the wiring.
Thermal overload
error 1 during
operation
Electromagnetic brake is
activated.
Check if the
electromagnetic brake is
activated.
Not activated.
Check (2).
(2) Servo amplifier is used in
excess of its continuous
output current.
Check the effective load
ratio with MR
Configurator.
Effective load ratio is
large.
Reduce load.
Check operation
pattern.
Use servo motor that
provides larger output.
Effective load ratio is
small.
Check (3).
(3) Servo system is instable
and causing oscillation.
Check for oscillation in
motor.
Oscillation is
occurring.
Adjust the gain.
Oscillation is not
occurring.
Check (4).
(4)
Not reset.
Reset the alarm after
sufficient cool-off time.
After the overload alarm
has been output, the
operation is restarted
without having cool-off
time.
Check if the alarm is
reset after waiting 30
minutes or longer
subsequent to the output
of the alarm.
Reset. Check
(5).
(5) Servo amplifier is faulty.
Replace the servo
amplifier, and check the
reproducibility of the error.
Not reproduced.
Replace the servo
amplifier.
Содержание MELSERVO-J3W Series
Страница 17: ...8 MEMO ...
Страница 27: ...1 FUNCTIONS AND CONFIGURATION 1 10 MEMO ...
Страница 87: ...4 STARTUP 4 14 MEMO ...
Страница 117: ...5 PARAMETERS 5 30 MEMO ...
Страница 129: ...6 GENERAL GAIN ADJUSTMENT 6 12 MEMO ...
Страница 185: ...10 CHARACTERISTICS 10 8 MEMO ...
Страница 241: ...11 OPTIONS AND AUXILIARY EQUIPMENT 11 56 MEMO ...
Страница 274: ...13 USING A LINEAR SERVO MOTOR 13 25 1 2 3 4 ...