
B-63945EN/02 5.MATTERS COMMON TO BOTH LCD-MOUNTED TYPE AND STAND-ALONE TYPE (HARDWARE)
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LED lighting sequence at power on
No. LED indication 1234 Board state
1 STATUS Power off
2 STATUS Initial state after power on
3 STATUS MPU initialized.
4 STATUS Firmware downloaded.
5 STATUS Control migration to OS
6 STATUS OS PHASE1
7 STATUS OS PHASE2
8 STATUS OS PHASE3
9 STATUS OS PHASE4
10
STATUS
Startup completed.
The system enters the No.10 status when the Fast Ethernet/Fast data
server starts normally. This status is maintained until an error occurs.
STATUS LED indications if an error occurs
If an error occurs, the LEDs repeatedly flash "LONG" then "SHORT."
(For "LONG," the LED lights for a long time. For "SHORT," the LED
lights for a short time.)
STATUS LED indication
No.
LONG
4 3 2 1
SHORT
4 3 2 1
Board state
1
SDRAM parity alarm
2
General invalid instruction
3
Failure caused
by this board
Invalid slot instruction
4
Failure caused
by another
board
NMI of another module
NOTE
If an error, indicated by repeatedly flashing a
LONG and SHORT combination other than the
above, occurs, contact FANUC.
ALARM LED indications if an error occurs
No. LED indication Board state
1
ALM
Parity error occurred in memory.