13. USING A LINEAR SERVO MOTOR
13 - 79
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.
Summary of Contents for MELSERVO-J3W Series
Page 17: ...8 MEMO ...
Page 27: ...1 FUNCTIONS AND CONFIGURATION 1 10 MEMO ...
Page 87: ...4 STARTUP 4 14 MEMO ...
Page 117: ...5 PARAMETERS 5 30 MEMO ...
Page 129: ...6 GENERAL GAIN ADJUSTMENT 6 12 MEMO ...
Page 185: ...10 CHARACTERISTICS 10 8 MEMO ...
Page 241: ...11 OPTIONS AND AUXILIARY EQUIPMENT 11 56 MEMO ...
Page 274: ...13 USING A LINEAR SERVO MOTOR 13 25 1 2 3 4 ...