
B-64044EN/01 MAINTENANCE 1.HARDWARE
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1.2 LED INDICATORS AND THEIR MEANINGS
This board provides four green LEDs (STATUS) and one red LED
(ALARM) for status indication.
In addition, the internal daughter board has two LEDs that emit red
and green light.
Name Color Description
LED0 to 3 Green Indicates the activation state of the DeviceNet
software.
LEDWD Red Indicates an error on the daughter board.
MS Red/Green MS (Module Status) indicates the states of
nodes.
NS Red/Green NS (Network Status) indicates the state of the
network.
In the following explanations, the LED lighting states are expressed as
follows:
: Off : On : Blinking ◊: Don't care
LED display transition for LED0, LED1, LED2, and LED3 (during power-on)
LED indication
L3L2L1L0
State and cause when
stopped after power-on
Action when stopped after power-on
Power-off
After power-on, the DeviceNet
application software does not
start.
Store the DeviceNet application software in the flash
ROM of the CNC.
Initializing the firmware on the
daughter board.
Checking memory on the
daughter board.
Recognizing the firmware on
the daughter board.
Replace the DeviceNet master board.
Reading DeviceNet
parameters.
Enable the DeviceNet master function (software
option).
Verifying that DeviceNet
parameter "network" is set to
"online."
Set DeviceNet parameter "network" to "online."
Setting the bus parameter in
DeviceNet parameters.
Replace the DeviceNet master board.
Setting the slave parameter in
DeviceNet parameters.
Set the slave parameter in DeviceNet parameters
correctly. Or, replace the DeviceNet master board.
Checking duplicate MAC IDs. Check duplication with the MAC ID of a slave device.
Check if cables are connected correctly.
Check if power for communication is correctly supplied.
Check if slave devices are turned on.
The DeviceNet application
software has been initialized
and I/O communication starts.