Mitsubishi Electric Melservo-J4 Instruction Manual page 67

Alarm No.: 47 Name: Cooling fan error
 The speed of the servo amplifier cooling fan decreased.
Alarm content
 Or the fan speed decreased to the alarm occurrence level or less.
Detail Detail name Cause
No.
47.1 Cooling fan stop (1)
error caught in the cooling
fan.
(2) Cooling fan life expired.
47.2 Cooling fan (1)
speed reduction caught in the cooling
error fan.
(2) Cooling fan life expired.
Check method
Foreign matter was Check if a foreign matter
is caught in the cooling
fan.
Check if the cooling fan
is stopping.
Foreign matter was Check if a foreign matter
is caught in the cooling
fan.
Check the cooling fan
speed.
Check result
Something has been
caught.
Nothing has been
caught.
It is stopping.
Something has been
caught.
Nothing has been
caught.
The fan speed is less
than the alarm
occurrence level.
1 TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
Action Target
Remove the foreign [A]
matter. [B]
[WB]
Check (2).
[RJ010]
[GF]
Replace the servo
amplifier.
Remove the foreign
matter.
Check (2).
Replace the servo
amplifier.
1.4 Remedies for alarms
1
65