
B-63945EN/02 2.LCD-MOUNTED TYPE Series 30i HARDWARE
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(a) Alarm LED (CNC alarm red LED) indication at CNC
system alarm occurrence
If any of these LEDs lights, it is likely that the hardware is
defective.
No.
Alarm LED
3 2 1
Meaning
1
Low battery voltage.
The battery may be running out.
2
Software detected an error and stopped the system.
3
Hardware detected a failure in the system.
4
An alarm was issued with the servo card on the main
board.
The servo card may be faulty, or the FSSB may be
broken.
5
An error was detected in the data of the SRAM on the
DIMM module.
The DIMM module may be faulty, the battery voltage
may have dropped, or the main board may be faulty.
6
Abnormal power supply operation.
The cause may be noise or a power supply module
failure.
: On : Off
Alarm LED Meaning
LOW
Turned on when the voltage inside the CPU card has
dropped. The CPU card may be faulty.
(b) Changes in status LED at power-on time (Display control
side status: Green LED)
No.
Status LED
(DNV1 to 3)
3 2 1
Status
1
State where the power is not tuned on, or state where
the system was started up successfully and is running
normally
2
State immediately after the power is turned on
3
The interface between the CPU card and display control
card is being initialized. If the status does not proceed
further beyond this indication, the CPU card, display
card, or main board may be faulty.
4
Start-up on the display control card side is being
awaited. If the status does not proceed further beyond
this indication, the display card or main board may be
faulty.
5
The CPU card screen is being output to the display
control card, or a RAM error occurred in the interface
between the CPU card and display control card.
If the status does not proceed further beyond this
indication, the CPU card, display card, or main board
may be faulty.
: On : Off