
6. HARDWARE
213
D LED display transition at power–up
NO.
LED display NC Status
1 STATUS:jjjj Power off
2 STATUS:JJJJ Startup status immediately after power is
turned on
3 STATUS:jJJJ RAM initialized
4 STATUS:JjJJ Software ID set; keys initialized
5 STATUS:jjJJ Waiting for completion of software initializa-
tion 1
6 STATUS:JJjJ Waiting for completion of software initializa-
tion 2
7 STATUS:jJjJ Position coder initialized, etc.
8 STATUS:jJJj Waiting for digital servo initialization
9 STATUS:Jjjj Initialization completed (steady state)
J : ON j : OFF
The STATUS LEDs are green.
D LED display when an error occurs
LED display
Description
ALM:jJj System failure occurred.
The software detects the error and stops the system.
ALM:JJj Error in Local bus on the loader control board occurred.
ALM:jjJ System emergency occurred. Hardware detects the
error.
ALM:jJJ SRAM parity error on the loader control board oc-
curred.
J : ON j : OFF
The ALARM LEDs are red.
NOTE When two or more error occur simultaneously, the LED display
shows the state of low side on the table above.