SMC Networks LECSN-T Series

8. TROUBLESHOOTING
8 - 19
Alarm No.: 16
Name: Encoder initial communication error 1
Alarm content
An error occurred in the communication between an encoder and driver.
Detail
No.
Detail name
Cause
Check method
Check result
Action
16.1
Encoder initial
communication
- Receive data
error 1
(1)
An encoder cable is
malfunctioning.
Check if the encoder
cable is disconnected
or shorted.
It has a failure.
Replace or repair the
cable.
It has no failure.
Check (2).
(4)
The driver is
malfunctioning.
Replace the driver, and
then check the
repeatability.
It is not repeatable.
Replace the driver.
It is repeatable.
Check (5).
(5)
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 (6).
(6)
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.
16.2
Encoder initial
communication
- Receive data
error 2
Check it with the check method for [AL. 16.1].