
B–62075E/04
2. HARDWARE
134
(4)LED display
j :Not lit J :Lit L : Blinking
STATUS LEDs are green. ALARM LEDs are red.
1.2. The STATUS LEDs (green LEDs) on this PC board have no
meaning.
3. LED display when an error occurs (ALARM LED)
No. LED display NC status
1 ALARM jJj SYSFAIL occurred in the axis shelf.
(A fault occurred in a module of the axis shelf.)
2 ALARM jJJ SYSEMG occurred in the axis shelf.
(An NMI occurred in a module of the axis shelf.)
3 ALARM JjJ A bus error occurred during write access from the
main shelf.
4 ALARM JJj A bus error occurred in the F–bus of the axis shelf.
(1)Parts layout
Drawing number : A16B–2201–0710/02A and on
JNA
F–BUS
backplane
connector
LED
12
RISC
CPU
No.
Module name Function outline
1 SRAM module For SHARED RAM
2 ROM module Memory for RISC CPU
2.5.13
Configuration of the
RISC Board