
1.Series 16i/18i/21i, Power Mate i MAINTENENCE INFORMATION VI. MAINTENANCE B-63644EN/02
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1.2.2 LED Indications
The Fast Ethernet board for the Stand-alone type CNC has the
following LEDs: Four green STATUS LEDs and one red ALARM
LED for indicating the status. Two green LEDs and one red LED for
indicating the communication status. The figure below shows the
locations of these LEDs. The table below explains the LED lighting
states.
In the following explanations, the LED lighting states are expressed as
follows:
o: Off n: On ¶: Blinking à: Don't care
CD38R
LED4 (GREEN)
LED3 (GREEN)
LED2 (GREEN)
LED1 (GREEN)
ALM (RED)
LIL (GREEN)
COL (RED)
COM (GREEN)
BTX (GREEN)
The dashed lines indicate the faceplate.
LED lighting sequence at power on
No. LED indication Fast Ethernet board state
1 STATUS oooo Power off
2 STATUS nnnn Initial state after power on
3 STATUS nnno MPU initialized.
4 STATUS nnoo Firmware downloaded.
5 STATUS nooo Control migration to OS
6 STATUS onnn OS PHASE1
7 STATUS onno OS PHASE2
8 STATUS onon OS PHASE3
9 STATUS onoo OS PHASE4
10 STATUS ooo¶ Startup completed.
The system enters No.10 status when the Fast Ethernet board starts up
normally. This status is maintained until an error occurs.