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11. TROUBLESHOOTING
Display Name Definition Cause Action
Cooling fan life expiration (Refer to section
2.5.)
Change the cooling fan of the
servo amplifier.
AE8 Cooling fan speed
reduction warning
The speed of the servo
amplifier decreased to or
below the warning level.
This warning is not
displayed with MR-J3-
70T/100T among servo
amplifiers equipped with a
cooling fan.
The power supply of the cooling fan is
broken.
Change the servo amplifier.
AE9 Main circuit off
warning
Servo-on (SON) was
switched on with main
circuit power off.
Switch on main circuit power.
AEC Overload warning
2
Operation, in which a
current exceeding the
rating flew intensively in
any of the U, V and W
phases of the servo
motor, was repeated.
During a stop, the status in which a current
flew intensively in any of the U, V and W
phases of the servo motor occurred
repeatedly, exceeding the warning level.
1. Reduce the positioning
frequency at the specific
positioning address.
2. Reduce the load.
3. Replace the servo amplifier/
servo motor with the one of
larger capacity.
AED Output watt excess
warning
The status, in which the
output wattage (speed
torque) of the servo motor
exceeded the rated
output, continued steadily.
Continuous operation was performed with
the output wattage (speed
torque) of the
servo motor exceeding 150% of the rated
output.
1. Reduce the servo motor
speed.
2. Reduce the load.
11.5 Point table error
When a point table error occurs, the parameter error (A37) occurs. After the parameter No. of parameter error
(A37), the point table error details are displayed.
Point table error details
For the point table No.1 position data error
A L 3 7 # 0 0
P B 1 0 P B 1 1
P B 1 2 P B 1 6
Point table No. with error
Error item
Pos: position data
Spd: speed
Acc: acceleration time constant
Dec: deceleration time constant
Dwl: dwell
Aux: auxiliary function
P o s 0 0 1