Operation check led, Operation check led -6, Bl-n90 – KEYENCE BL-N90 Series User Manual
Page 20: Communication unit

1-2 Part Names
1-6
1
Ov
er
v
ie
w
Operation Check LED
The LED lights up or flashes according to the operations shown in the following table.
The buzzer may also go off depending on the operation.
z
BL-N90
* The number next to the buzzer tone mark indicates the number of times that the buzzer sounds.
z
Communication unit
LED lighting/flashing
BL-N90 status
Buzzer tone*
Blue on
During laser emission
—
Blue flashing
• No wireless connection with the communication unit
• Out of wireless communication range
—
When wireless communication is disconnected
White on
While transferring data to the communication unit
White flashing
While establishing a wireless connection (flashes
three times)
Yellow on
Charging complete
—
Yellow flashing
When set in the communication unit: charging
—
All flashing
When the page button on the connected
communication unit is pressed
Press the page button again to stop.
LED lighting/flashing
Communication unit status
Blue on
Wireless connection is established and operation is possible
Blue flashing
• No wireless connection with the BL-N90
• Out of wireless communication range
Blue off
BL-N9UB
: USB cable not connected
BL-N9V/N9R : AC power not connected
2
1
3
Repeat