
6
6.2 Stand–Alone Type i Series Hardware
208
<2> Status LED indication (green LED blinking)
Alarm LED
State
Ljjj Command being executed (reset)
jLLj Command being executed (preprocessing, distribution pro-
cessing)
jjjL Waiting for a command
jLjL Waiting for NC statement input
LLjL Command being executed (parameter modification)
(B437 series only)
jjLL Automatic operation is not started yet. (Replace the printed
circuit board.) (B451 series only)
L : Blinking j : OFF
<3> Alarm LED indication (red LED)
Alarm LED
State
JjJ The power supply for the processor core on the RISC board
is defective.
jjJ A DRAM parity error occurred on the CPU card.
JJj System emergency
jJj (Reserved)
J : ON j : OFF
NOTE The LEDs display any other pattern if an error occurs in the data
server option.