
B–62075E/04
2. HARDWARE
136
(4)LED display
j :Not lit J :Lit L : Blinking
STATUS LEDs are green. ALARM LEDs are red.
1. LED display when the power is turned on (Nos.1 to 8) and during
operation (Nos. 9 to 12) (STATUS LED)
No. LED display NC status
1 STATUS jjjj Power–off
2 STATUS JJJJ Immediately after power–on or the state in which
the RISC CPU is not started
3 STATUS jjjJ DRAM or SHARED RAM test in progress
(If an error is detected during the test, this LED
display is held and not changed.)
4 STATUS jjJj ROM test in progress
(If an error is detected during the test, this LED
display is held and not changed.)
5 STATUS Jjjj Waiting for the processing by the CNC (1)
6 STATUS JjjJ Waiting for the processing by the CNC (2)
7 STATUS JjJj Waiting for the processing by the CNC (3)
8 STATUS JJjj Waiting for the processing by the CNC (4)
9 STATUS jjjL Waiting for RISC mode
10 STATUS jLjL Waiting for the input of an NC statement
11 STATUS jLLj Executing a command in RISC mode
12 STATUS Ljjj Resetting
13 STATUS LjLL Override 0 upon acceleration/deceleration before
interpolation (waiting for an override change)
2. LED display when an error occurs (STATUS LED)
No. LED display NC status
1 STATUS jjjJ An error occurred during test of the DRAM or
SRAM module (shared RAM) on the RISC board.
2 STATUS jjJj An error occurred during test of the ROM module.
3 STATUS jjJJ A synchronization signal cannot be detected from
the main CPU.
4 STATUS jJjj An error occurred during access to the F–bus.
(The module ID cannot be read correctly.)
5 STATUS JJJj A system error occurred.
3. LED display when an error occurs (ALARM LED)
No. LED display NC status
1 ALARM Jjj The RISC CPU is not started.
2 ALARM jJj A parity alarm occurred in the SRAM module.
3 ALARM jjJ A parity alarm occurred in the DRAM on the RISC
board.