SMC Networks LECSN-T Series - Page 288

8. TROUBLESHOOTING
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Alarm No.: 1E
Name: Encoder initial communication error 2
Alarm content
An encoder is malfunctioning.
Detail
No.
Detail name
Cause
Check method
Check result
Action
1E.1
Encoder
malfunction
(1)
An encoder is
malfunctioning.
Replace the servo
motor, and then check
the repeatability.
It is not repeatable.
Replace the servo motor.
It is repeatable.
Check (2).
(2)
Something near the
device caused it.
Check the noise,
ambient
temperature, vibration,
etc.
There is a problem in
the surrounding.
Take countermeasures
against its cause.
Alarm No.: 1F
Name: Encoder initial communication error 3
Alarm content
The connected encoder is not compatible with the driver.
Detail
No.
Detail name
Cause
Check method
Check result
Action
1F.1
Incompatible
encoder
(1)
A servo motor encoder,
which is not compatible
with the driver, was
connected.
Check the model of the
servo motor encoder.
It is not compatible
with the driver.
Replace it with a
compatible one.
It is compatible with
the driver.
Check (2).
(2)
The software version of
the driver does not
support the servo motor.
Check if the software
version supports the
servo motor encoder.
It is not compatible.
Replace the driver to one
which software version
supports the servo motor
encoder
It is compatible.
Check (3).
(3)
An encoder is
malfunctioning.
Replace the servo
motor, and then check
the repeatability.
It is not repeatable.
Replace the servo motor.
It is repeatable
Replace the driver.