SMC Networks LECSB2-T Series - Page 313

8. TROUBLESHOOTING
8 - 26
Alarm No.: 20
Name: Encoder normal 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
20.6
Encoder
normal
communication
- Transmission
data error 2
(2)
An encoder cable is
malfunctioning.
Check it with the check method for [AL. 20.1].
(3)
The external conductor
of the encoder cable is
not connected to the
ground plate of the
connector.
(4)
When you use an A/B/
Z-phase differential
output linear encoder,
the parameter setting is
incorrect.
(5)
The driver is
malfunctioning.
(6)
An encoder is
malfunctioning.
(7)
Something near the
device caused it.
20.7
Encoder normal
communication
- Transmission
data error 3
Check it with the check method for [AL. 20.1].
20.9
Encoder normal
communication
- Receive data
error 4
20.A
Encoder normal
communication
- Receive data
error 5