Omron E3NW-CCL, User Manual

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7 Troubleshooting and Maintenance
7 - 2 E3NW-CCL CC-Link Digital Sensor Communications Unit User’s Manual (E431)
7-1 Troubleshooting
You can check for errors by looking at the status indicators on the E3NW-CCL. For detailed status
definitions, refer to
5-3-1 Status Indicators .
 Errors Related to the E3NW-CCL
7-1-1 Troubleshooting Errors with the Status Indicators
RUN
Indicator
ERR
Indicator
SS
Indicator *1
Description Cause Solution
Not lit.
Lit (red)
Lit (green or
red)
Communications
Error
CC-Link
communications
were interrupted
during
communications.
Check the following items for all CC-Link
communications cables.
• Are the signal wires connected
properly?
• Are there any disconnections?
• Are you using only CC-Link-authorized
products?
• Is there any noise?
Switch Setting
Error (Station
number setting is
out of range.)
There is an error in
a station number
setting.
Set the station number to within the valid
range.
Flashing
(red) Switch Setting
Error
A switch setting
was changed
during operation.
The settings of the setting switches are
read only once when the power is turned
ON. Changing this setting after the power
is turned ON will have no effect until after
the next time the power is turned ON.
To change switch settings, cycle the
power supply.
Not lit.
Communications
Error
The CC-Link cable
is not connected.
Check the following items for all CC-Link
communications cables.
• Are the signal wires connected
properly?
• Are there any disconnections?
• Are you using only CC-Link-authorized
products?
• Is there any noise?
The parameters do
not match those
set in the CC-Link
master station.
• Set the baud rate/operating mode
setting switch to match the parameter
set in the CPU of the master station.
• Set the station number setting switch to
match the parameter set in the CPU of
the master station.
• Set the operating mode to match the
CC-Link version in the parameter set in
the CPU of the master station.
Not lit.
Power Supply
Error
The power supply
is not connected
properly to the
E3NW-CCL.
Eliminate the following causes of power
interruption and then restart the
E3NW-CCL according to the
specifications of the CC-Link master that
the E3NW-CCL is connected to.
• Are the power supply cables wired
properly?
• Are the power supply cables
disconnected?
• Is the power supply voltage within the
specifications?
• Is the power supply capacity sufficient?
• Is the power supply malfunctioning?