8. TROUBLESHOOTING
8 - 25
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
50.6 (1)
Machine
struck
something.
Examine checkpoints described in the alarm display "50.5".
Thermal overload
error 4 during a
stop
(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) Hunting occurs during a
stop.
(7) Servo amplifier is faulty.
(8) Encoder is faulty.
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
51.1
(1)
Check the power cable.
Misconnection found.
Modify the wiring.
Power cable is cut.
Normal.
Check
(2).
Thermal overload
error 3 during
operation
(2)
Problem found.
Modify the wiring.
Incorrect connections
to/from the servo motor.
Check the wiring of U, V
and W phases.
No problem found.
Check (3).
(3) Misconnection of encoder
cable.
Check the encoder cable
connection.
Problem found.
Check the cable
connection.
No problem found.
Check (4).
(4)
Machine
struck
something.
Check if the machine
struck something.
Machine struck.
Review the operation
pattern.
Machine did not strike. Check (5).
(5) Torque is saturated.
Check the torque during
the operation.
Torque is saturated.
Review the operation
pattern.
Torque is not
saturated.
Check (6).
(6) Servo amplifier is faulty.
Not reproduced.
Replace the servo
amplifier.
Replace the servo
amplifier, and check the
reproducibility of the error. Reproduced. Check
(7).
(7) Encoder is faulty.
Replace the servo motor,
and check the
reproducibility of the error.
Not reproduced.
Replace the servo
motor.
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 servo motor.
(3) Misconnection of encoder
cable.
(4)
Machine
struck
something.
(5) Torque is saturated.
(6) Servo amplifier is faulty.
(7) Encoder is faulty.
Содержание MELSERVO-J3W Series
Страница 17: ...8 MEMO ...
Страница 27: ...1 FUNCTIONS AND CONFIGURATION 1 10 MEMO ...
Страница 87: ...4 STARTUP 4 14 MEMO ...
Страница 117: ...5 PARAMETERS 5 30 MEMO ...
Страница 129: ...6 GENERAL GAIN ADJUSTMENT 6 12 MEMO ...
Страница 185: ...10 CHARACTERISTICS 10 8 MEMO ...
Страница 241: ...11 OPTIONS AND AUXILIARY EQUIPMENT 11 56 MEMO ...
Страница 274: ...13 USING A LINEAR SERVO MOTOR 13 25 1 2 3 4 ...