8. TROUBLESHOOTING
8 - 19
Alarm No.: 51
Name: Overload 2
Alarm content
Maximum output current flowed continuously due to machine collision or the like.
Display Detail name
Cause
Check method
Check result
Action
51.1 Thermal
overload error 3
during operation
(1) The servo motor power
cable was disconnected.
Check the servo motor
power cable.
It is disconnected.
Repair or replace the
servo motor power
cable.
It is not disconnected.
Check (2).
(2)
It is incorrect.
Connect it correctly.
The connection of the
servo motor is incorrect.
Check the wiring of U, V,
and W.
It is correct.
Check (3).
(3)
It is incorrect.
Connect it correctly.
The connection of the
encoder cable is
incorrect.
Check if the encoder
cable is connected
correctly.
It is correct.
Check (4).
(4) The torque is insufficient. Check the peak load
ratio.
The torque is saturated. Reduce the load or
review the operation
pattern. Or use a larger
capacity motor.
The torque is not
saturated.
Check (5).
(5) The servo amplifier is
malfunctioning.
It is not repeatable.
Replace the servo
amplifier.
Replace the servo
amplifier, and then check
the repeatability.
It is repeatable.
Check (6).
(6) An encoder is
malfunctioning.
Replace the servo motor,
and then check the
repeatability.
It is not repeatable.
Replace the servo motor.
51.2
(1)
Check if it collided.
It collided.
Check operation pattern.
A moving part collided
against the machine.
It did not collide.
Refer to (2).
Thermal
overload error 3
during a stop
(2) The servo motor power
cable was disconnected.
Check it with the check method for [AL. 51.1].
(3) The connection of the
servo motor is incorrect.
(4) The connection of the
encoder cable is
incorrect.
(5) The torque is saturated.
(6) The servo amplifier is
malfunctioning.
(7) An encoder is
malfunctioning.
Summary of Contents for MELSERVO-JE MR-JE-100A
Page 23: ...1 FUNCTIONS AND CONFIGURATION 1 12 MEMO ...
Page 29: ...2 INSTALLATION 2 6 MEMO ...
Page 91: ...3 SIGNALS AND WIRING 3 62 MEMO ...
Page 171: ...5 PARAMETERS 5 44 MEMO ...
Page 195: ...6 NORMAL GAIN ADJUSTMENT 6 24 MEMO ...
Page 221: ...7 SPECIAL ADJUSTMENT FUNCTIONS 7 26 MEMO ...
Page 249: ...8 TROUBLESHOOTING 8 28 MEMO ...
Page 255: ...9 DIMENSIONS 9 6 MEMO ...
Page 263: ...10 CHARACTERISTICS 10 8 MEMO ...
Page 293: ...11 OPTIONS AND PERIPHERAL EQUIPMENT 11 30 MEMO ...