
B-63322EN-1/01 12. MAINTENANCE
-71-
12 MAINTENANCE
12.1
LED INDICATIONS
The arrangement of the LEDs on
the R.B. board is as shown in the
figure on the right.
The upper two LEDs (green)
indicate the current state of the
software.
The lower three LEDs (red)
indicate the state of the hardware.
The meanings of the LEDs are
explained below.
12.1.1
Normal State
When the LEDs are either on or off (not flashing) and no error
messages are displayed on the screen, the LEDs indicate the current
state of the remote buffer board, and the remote buffer board is in the
normal state.
Table 12.1.1 LED (green) indications and their meanings (STATUS LED)
No. LED indication Meaning Code Remarks
1 The power has just been turned on, and the remote buffer CPU has not
been activated.
3
2 The board is in the power-on process, waiting for all the modules to be
initialized.
0
3 The board is idle, waiting for requests (commands) from the CNCs. 1
4 The board has received a request (command) from a CNC, and is
handling it.
2
5 The board has received a stop request due to a reset/alarm/program
end, and is waiting for the CNC to shut down.
3
: On : Off
1
2
A
B
C
STATUS LED
ALARM LED
: Green
: Red
1
2
1
2
1
2
1
2
1
2