Omron E3NW-CCL User Manual page 77

External
cause
Communications
Noise
Power supply
Communications
Dis-
connection
Power supply
Reference
Refer to the CC-Link master station for error codes that can be checked on the CC-Link master
unit.
E3NW-CCL CC-Link Digital Sensor Communications Unit User's Manual (E431)
Location of problem
CC-Link
Serial
connection with
Sensor Amplifier
Unit
Serial
connection with
Distributed
Sensor Unit
CC-Link
Serial
connection with
Sensor Amplifier
Unit
Serial
connection with
Distributed
Sensor Unit
7 Troubleshooting and Maintenance
Detection Notification
method method
• ERR indicator lit.
• Error station
detection in the
CRC error
CC-Link
diagnostics on the
master station
PV Error
SS indicator lit red.
(Checksum
RX(n+2)3 turns ON.
Error)
--- SS indicator not lit.
• ERR indicator lit.
• Error station
MFP3N
detection in the
communications
CC-Link
error detection
diagnostics on the
master station
PV Error
SS indicator lit red.
(Checksum
RX(n+2)3 turns ON.
Error)
--- SS indicator not lit.
Solution
Stop and restart
CC-Link
communications.
Cycle the power
supply.
Cycle the power
supply.
Check the cable
connections at
the location
where the error
occurred.
Check the
connections for
communications
interfaces and
communications
7
cables.
Check the power
supply cable.
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