Mitsubishi Electric MELSERVO-JE MR-JE-100A, Инструкция по эксплуатации

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8. TROUBLESHOOTING
8 - 26
Alarm No.: E9 Name: Main circuit off warning
Alarm content
The servo-on command was inputted with power supply off.
The bus voltage dropped during the servo motor driving under 50 r/min.
Display Detail name Cause Check method Check result Action
E9.1 Servo-on signal
on during main
circuit off
(1) The bus voltage is less
than 215 V DC.
Check the bus voltage. It is less than 215 V DC. Review the wiring.
Check the power supply
capacity.
(2) The servo amplifier is
malfunctioning.
Check the bus voltage
value. The voltage of the
power supply is 160 V
AC or more, and the bus
voltage is less than 200
V DC. Replace the servo
amplifier.
E9.2 Bus voltage
drop during low
speed operation
(1) The bus voltage dropped
during the servo motor
driving under 50 r/min.
Check the bus voltage. It is less than 200 V DC. Review the power supply
capacity. Increase the
acceleration time
constant.
Alarm No.: EC Name: Overload warning 2
Alarm content Operations over rated output were repeated while the servo motor shaft was not rotated.
Display Detail name Cause Check method Check result Action
EC.1 Overload
warning 2
(1) The load is too large or
the capacity is not
enough.
Check the effective load
ratio. The effective load ratio is
high. Reduce the load.
Replace the servo motor
with the one of larger
capacity.
Alarm No.: ED Name: Output watt excess warning
Alarm content
The status, in which the output wattage (speed × torque) of the servo motor exceeded the rated output,
continued steadily.
Display Detail name Cause Check method Check result Action
ED.1 Output watt
excess warning
(1) The status, in which the
output wattage (speed ×
torque) of the servo
motor exceeded 150% of
the rated output,
continued steadily.
Check the servo motor
speed and torque. The output wattage is
150% of rating. Reduce the servo motor
speed. Reduce the load.
Alarm No.: F0 Name: Tough drive warning
Alarm content Tough drive function was activated.
Display Detail name Cause Check method Check result Action
F0.1 Instantaneous
power failure
tough drive
warning
(1) The power supply
voltage dropped.
Check it with the check method for [AL. 10.1].
F0.3 Vibration tough
drive warning
(1) The setting value of the
machine resonance
suppression filter was
changed due to a
machine resonance.
Check if it was changed
frequently. It was changed
frequently. Set the machine
resonance suppression
filter. Check the machine
status if screws are
loose or the like.