BEA LZR-U920 User Manual Download Page 3

75.5847.03 LZR-U920_U921 20191125 

 

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DESCRIPTION

1. 

laser window – emission

2. 

laser window – reception

3. 

LED signals (4)

4. 

holes for M5 screws

5. 

holes for Ø UNC N°10 screws

6. 

cable conduit 

7. 

visible laser beams (3)

LED SIGNAL

LED 1

LED 2

on and running

(green)

transmitting distance data

(green)

ERROR LED

POWER LED

configuration mode

(red)

idle / transmitting heartbeat

(red)

no error

(off)

error

(orange)

no power

(on)

power

(blue)

1.  LED 1
2.  LED 2
3.  Error LED
4.  Power LED

MOUNTING & WIRING

Use the mounting template to 
position the sensor correctly. 
The gray area indicates the 
detection range.

Pass the cable through the 
cable opening.

Drill 3 holes as indicated on 
the mounting template. 
Drill a hole (1/2 inch min.) for 
the cable.

Position the sensor and secure using the 
provided M5 or 

Ø

 UNC N

°

10 screws.

Wire accordingly.

If the heartbeat mode1 via the brown/white and brown wire is 

not used, it is recommended to ground these wires.

max. 

8 mm

For more information on existing parameters that can be configured,  

see Application Note 

LZR

®

-U920/U921 Protocol

 (76.0019).

WIRE COLORS

FUNCTION

Power supply (10 – 35 VDC)

Red (+)

Black (-)

bare

Blue (+)

Blue/White (-)

Brown/White

Brown

GND

RS485B
RS485A

ISSD1 PIN 1*
ISSD1 PIN 2*

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