
(3) Alarm LED (red) indication at system alarm occurrence
If any of these LEDs lights, it is likely that the hardware is defective.
Alarm LED Meaning
SVALM Servo alarm
SYSEMG Lights when a system alarm occurs. The hardware has detected a fail-
ure in the system.
SYSFAIL Lights when a system alarm occurs. Used by the software to stop the
system. Lights while boot is under way.
PARITY1 SRAM parity alarm
PARITY2 Common RAM parity alarm between NC and PC
(4) Status LED (red) indication at error occurrence (PC side status : Green
LED)
Status LED
(LED 5 to 8)
5.6.7.8
Status
jJjj Common RAM parity alarm between NC and PC
J: On j: Off
(5) PC POWER (green LED) lights when the CE card is powered on
(including during backup operation).
For the LCD–mounted type, the startup sequence used during power–up
can be changed by the rotary switch on the mother board.
Rotary switch
setting
Contents
0 Setting for maintenance.
The start menu is displayed. It is possible to start boot and IPL
from the PC.
1 Setting for usual operation.
The start menu is not displayed.
It is impossible to start boot or IPL from the PC.
2 Setting for maintenance.
Normally, this position is not used.
7 Setting for maintenance.
The start menu is displayed when MDI keys <6> and <7> are
pressed.
It is possible to start boot or IPL from the PC.
See Appendix, ”MAINTENANCE OF OPEN CNC (BOOT–UP AND
IPL),” for details on boot–up and IPL operations when the rotary switch
is set to 0.
D Rotary switch setting
3. LCD–MOUNTED TYPE is SERIES HARDWARE
GFKE-0222-EN
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