Mitsubishi Electric MELSERVO-J3 Series Instruction Manual page 668

16. INDEXER POSITIONING OPERATION
Display Name
Main circuit Main circuit
A45
device device
overheat overheat.
Servo motor Servo motor
A46
overheat temperature
rise actuated
the thermal
sensor.
Cooling fan The cooling fan
A47
alarm of the servo
amplifier
stopped, or its
speed
decreased to
or below the
alarm level.
Definition
1. Ambient temperature of servo amplifier is over
55 (131°F).
2. Used beyond the specifications of close
mounting.
3. The power supply was turned on and off
continuously by overloaded status.
4. A cooling fan or heat sink is clogged up.
5. Servo amplifier fault. (It occurred after the power
supply is turned on.)
1. Ambient temperature of servo motor is over
40 (104 ).
2. Servo motor is overloaded.
3. Thermal sensor in encoder is faulty.
1. Cooling fan life expiration (Refer to section 2.5.)
2. Foreign matter caught in the cooling fan stopped
rotation.
3. The servo amplifier failed.
Cause
16 - 113
(Note 2)
Action
detailed
information
Check environment so
that ambient temperature
is 0 to 55 (32 to
131°F).
Use within the range of
specifications. (Refer to
section 2.1.)
Check operation pattern.
Clean the cooling fan or
heat sink.
Change the servo
amplifier.
Check environment so
that ambient temperature
is 0 to 40 (32 to
104 ).
1. Reduce load.
2. Check operation
pattern.
3. Use servo motor that
provides larger output.
Change the servo motor.
Change the cooling fan of
the servo amplifier.
Remove the foreign
matter.
Change the servo
amplifier.
Alarm
1, 2,
10, 20
1