Mitsubishi Electric MELSERVO-J3W Series, Инструкция по эксплуатации

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13. USING A LINEAR SERVO MOTOR
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Alarm No.51 Name: Overload 2 Stop method: Corresponding axis stops
Alarm description Machine collision or the like caused maximum output current to flow for several seconds continuously.
Display Name Cause Checkpoint Finding Action
51.2 (1) Power cable is cut. Examine checkpoints described in the alarm display "51.1". Thermal overload
error 3 during a
stop
(2) Incorrect connections
to/from the linear servo
motor.
(3) Misconnection of encoder
cable.
(4) Resolution of the linear
encoder and the
resolution setting of the
parameter are different.
(5) Polarity of the linear
encoder is incorrect.
(Installation direction is
incorrect.)
(6) Initial magnetic pole
detection is not performed.
(7) Linear encoder is faulty.
(8) Machine struck
something.
(9) Torque is saturated.
(10) Servo amplifier is faulty.
Alarm No.52 Name: Error excessive Stop method: Corresponding axis stops
Alarm description
The droop pulses existing between the model position and the actual servo motor position exceeds the
alarm level.
Display Name Cause Checkpoint Finding Action
52.3 Excess droop
pulse existing
between the
model position
and the actual
servo motor
position
Same as for the rotary servo motor.
Refer to section 8.3.
52.4 Maximum
deviation at 0
torque limit
Alarm No.8A Name: USB communication time-out error Stop method: All axes stop
Alarm description
Communication between the servo amplifier and a communication device (PC, etc.) stops for the
specified time or longer.
Display Name Cause Checkpoint Finding Action
8A.1 USB
communication
time-out for the
specified time or
longer
Same as for the rotary servo motor.
Refer to section 8.3.