SMC Networks LECSN-T Series User Manual

8. TROUBLESHOOTING
8 - 42
56.3
Estimated
distance over
during forced
stop
(1)
The forced stop
deceleration time
constant is short.
[Pr. PC51]
Increase the parameter
setting value, and then
check the
repeatability.
It is not repeatable.
Adjust the deceleration
time constant.
It is repeatable.
Check (2).
(2)
The torque limit has
been enabled.
Check if the limiting
torque is in progress.
The limiting torque is
in progress.
Review the torque limit
value.
The limiting torque is
not in progress.
Check (3).
(3)
The encoder or linear
encoder is
malfunctioning.
Replace the servo
motor, and
then check the
repeatability.
It is not repeatable.
Replace the servo motor.
Alarm No.: 61
Name: Operation error
Alarm content
・
An operation of the positioning function failed.
Detail
No.
Detail name
Cause
Check method
Check result
Action
61.1
Point table
setting range
error
(1)
"1" or "3" was set to the
sub function of the last
point table (255).
Check if "1" or "3" was
set.
It was set.
Review the settings.
Alarm No.: 63
Name: STO timing error
Alarm content
・
STO input signal turns off while the servo motor is rotating.
Detail
No.
Detail name
Cause
Check method
Check result
Action
63.1
STO1 off
(1)
STO1 was turned off
(enabled) under the
following speed
conditions.
1) Servo motor speed:
50 r/min or more
Check if STO1 is off
(enabled).
It is off (enabled).
Turn on STO1 (disabled).
63.2
STO2 off
(1)
STO2 was turned off
(enabled) under the
following speed
conditions.
Check if STO2 is off
(enabled).
It is off (enabled).
Turn on STO2 (disabled).
Alarm No.: 63
Name: STO timing error
Alarm content
・
STO input signal turns off while the servo motor is rotating.
Detail
No.
Detail name
Cause
Check method
Check result
Action
63.2
STO2 off
(1)
Servo motor speed:
50 r/min or more
63.5
STO by
functional
safety unit
STO of the functional
safety unit was turned
off (enabled) under the
following speed
conditions.
1) Servo motor speed:
50 r/min or more
Check if STO of the
functional safety unit is
off (enabled).
It is off (enabled).
Turn on STO
(disabled).
Alarm No.: 64
Name: Functional safety unit setting error
Alarm content
・
A setting of the driver or functional safety unit was incorrect.
Detail
No.
Detail name
Cause
Check method
Check result
Action
64.1
STO input error
(1)
When a functional
safety unit is used, a
connector is connected
to CN8 of the driver.
Check the connection
of the CN8 connector.
It is connected.
Turn off the control circuit
power supply of the driver,
and then remove the
connector of CN8.

SMC Networks LECSN-T Series Specifications

General

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