
B–63785EN/01
2. 15i SERIES HARDWARE
141
JNA
F–BUS
backplane connector
LEDC
LEDB
LEDA
LED2
LED1
DRAM module
JD5L/JD6L
Connector number Specification
For serial communication board A1: JD5L RS232C I/F
For serial communication board A2: JD6L RS422 I/F
Red LED alarm display j Off J On
C B A Alarm
j j J CPU reset state (immediately after power–on)
J J j A DRAM parity error occurred.
j J j A bus error occurred in the CPU on this board.
J j j An error occurred on the local bus on this board.
Green LED status display
j Off J On L Blink Ll On and blink alternately
2 1 Status
J J
CPU reset state (immediately after power–on), or state
waiting for close processing by the CNC after accepting a
stop request for a cause such as a reset, alarm, or pro-
gram end.
j j
State waiting for the completion of initialization of all mod-
ules during power–on processing
j J
Idle state waiting for a request (command) from the CNC
J j
State in which a request (command) from the CNC has
been accepted and is being executed
j L
The contents of the DRAM on this board could not be
read correctly. (Code area check error)
L j
An NMI was generated in a module other than this board.
L l
An error occurred. When this LED display is provided, a
system alarm is output to the screen.
D Mounting locations of
connector, LCDs, and etc.
D LED display