
6. CONNECTION USING THE HSSB
B–63463EN/01
40
1) Description of AL1 and AL2
LEDs A and B on the HSSB board on the Digital Servo Adapter are
described below.
LED Color Description
LED B ON Red The communication on the high speed serial
bus has stopped.
LED A ON Red A parity alarm occurred in the common RAM
on the HSSB board.
2) Description of LEDs 1 to 4
LED indication (status): J : ON j : OFF
ST4 to ST1 Status
4 3 2 1
The power supply has just started.
The HSSB board on the Digital Servo Adapter is being
initialized.
The board is waiting for the customer control unit to be
booted.
The board has started up normally, performing normal
operation.
Communication has stopped.
A parity alarm occurred in the common RAM on the
HSSB board on the Digital Servo Adapter.
A communication error occurred.
LED1* and LED2* on the I/F board on the personal computer are
described below.
LED Color Description
LED1* ON Red The communication on the high speed serial
bus has stopped.
LED2* ON Green The status of the Digital Servo Adapter is
normal.
LED1* represents LED1, LED1A, and LED1B. LED2* represents
LED2, LED2A, and LED2B.
6.5
LED DISPLAY
6.5.1
LEDs on the HSSB
Board on the Digital
Servo Adapter
6.5.2
LEDs on the HSSB PC
Interface Board