8. TROUBLESHOOTING
8 - 23
Alarm No.50
Name: Overload 1
Stop method: Corresponding axis stops
Alarm description
Load exceeds overload protection characteristic of servo amplifier.
Display Name
Cause
Checkpoint
Finding
Action
50.2 (1)
Machine
struck
something.
Check if the machine
struck something.
Machine struck.
Review the operation
pattern.
Thermal overload
error 2 during
operation
Machine did not strike. Check (2).
(2)
Check the power cable.
Problem found.
Modify the wiring.
Power cable is cut.
No problem found.
Check (3).
(3)
Incorrect
connections
to/from the servo motor.
Check the wiring of U, V
and W phases.
Problem found.
Perform wiring
correctly.
No problem found.
Check (4).
(4) Electromagnetic brake is
activated.
Examine checkpoints described in the alarm display "50.1".
(5) Servo amplifier is used in
excess of its continuous
output current.
(6) Servo system is instable
and causing oscillation.
(7) Servo amplifier is faulty.
(8) Encoder is faulty.
Replace the servo motor,
and check the
reproducibility of the error.
Not reproduced.
Replace the servo
motor.
50.3 (1)
Machine
struck
something.
Examine checkpoints described in the alarm display "50.2".
Thermal overload
error 4 during
operation
(2) Power cable is cut.
(3)
Incorrect
connections
to/from the servo motor
(4) Electromagnetic brake is
activated.
(5) Servo amplifier is used in
excess of its continuous
output current.
(6) Servo system is instable
and causing oscillation.
(7) Servo amplifier is faulty.
(8) Encoder is faulty.
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 ...