SMC Networks LECSN-T Series User Manual

8. TROUBLESHOOTING
8 - 39
Alarm No.: 51
Name: Overload 2
Alarm content
・
Maximum output current flowed continuously due to machine collision or the like.
表示
Detail name
Cause
Check method
Action
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)
The connection of the
servo motor is
incorrect.
Check the wiring of
U/V/W.
It is incorrect.
Connect it correctly.
It is correct.
(Check (3).
(3)
The connection of the
encoder cable is
incorrect.
Check if the encoder
cable is connected
correctly.
It is incorrect.
Connect it correctly.
It is correct.
Check (4).
(5)
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 [GF]
saturated.
Check (6).
(6)
The driver is
malfunctioning.
Replace the driver, and
then check
the repeatability.
It is not repeatable.
Replace the driver.
It is repeatable.
Check (7).
(7)
An encoder or servo
motor is
malfunctioning.
Replace the servo
motor,
and then check the
repeatability.
It is not repeatable.
Replace the servo motor.
51.2
Thermal
overload error 3
during a stop
(1)
A moving part collided
against the machine.
Check if it collided.
It collided.
Check operation pattern.
It did not collide.
Refer to (2).
(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.
(6)
The torque is
saturated.
(7)
The driver is
malfunctioning
(8)
An encoder is
malfunctioning.

SMC Networks LECSN-T Series Specifications

General

Brand	SMC Networks
Model	LECSN-T Series
Category	Controller
Language	English