SMC Networks LECSN-T Series User Manual

8. TROUBLESHOOTING
8 - 38
Alarm No.: 50
Name: Overload 1
Alarm content
・
Load exceeded overload protection characteristic of driver.
Detail
No.
Detail name
Cause
Check method
Check result
Action
50.4
Thermal
overload error 1
during a stop
(1)
A moving part collided
against the machine.
Check if it collided.
It collided.
Check operation pattern.
It did not collide.
Check (2).
(2)
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 (3).
(3)
Hunting occurs during
servo-lock.
Check if the hunting is
occurring.
.
The hunting is
occurring.
Adjust gains.
The hunting is not
occurring.
Check (4).
(4)
The electromagnetic
brake has not released.
(The electromagnetic
brake has been
activated.)
Check if the
electromagnetic brake
is released.
It is not released.
Release the
electromagnetic brake.
It is released.
Check (5).
(6)
A current was applied to
the driver in
excess of its continuous
output current.
Check the effective
load ratio.
The effective load
ratio is
high.
Reduce the load. Or use
a larger capacity motor.
The effective load
ratio is small.
Check (7).
(7)
The servo system is
unstable and
resonating.
Check if it is
resonating.
It is resonating.
Adjust gains.
It is not resonating.
Check (9).
(8)
The driver is
malfunctioning.
Replace the driver, and
then check the
repeatability.
It is not repeatable.
Replace the driver.
It is repeatable.
Check (10).
(9)
The encoder, servo
motor, is malfunctioning.
Replace the servo
motor, and then check
the repeatability.
It is not repeatable.
Replace the servo motor.
50.5
Thermal
overload error 2
during a stop
Check it with the check method for [AL. 50.4].
50.6
Thermal
overload error 4
during a stop

SMC Networks LECSN-T Series Specifications

General

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