OPERATING INSTRUCTIONS
en
5.1
Notes on UL approval
24
O P E R A T I N G I N S T R U C T I O N S | PowerProx - WTT12L
Table 2: Connection diagram 2
WTT12L-
B2xx6/-B2xx3
B3xx6/-B3xx3
1 = BN
2 = WH
3 = BU
4 = BK
5 = GY
2
3
Table 3: Connection diagram 3
WTT12LC-
1 = BN
2 = WH
3 = BU
4 = BK
5 = GY
Only apply voltage/switch on the voltage supply (U
tions have been established. The green LED lights up on the sensor.
Operation in IO-Link mode: Connect the device to a suitable IO-Link Master and inte‐
grate in the master or controller via IODD/function block. The green display LED flashes
on the sensor. IODD and function block are available to download from www.sick.com
under the part number.
Explanations on connection diagram:
Teach = external teach (ET)
TI/Test = test input
(see "Additional functions", page
C = communication (e.g. IO-Link)
L/D = light/dark switch
The device shall be supplied from an isolating transformer having a secondary overcur‐
rent protective device that complies with UL 248 to be installed in the field rated either:
a)
max 5 amps for voltages 0 ~ 20 V (0 ~ 28.3 V peak), or
b)
100 / Vp for voltages of 20 ~ 30 V (28.3 ~ 42.4 V peak).
Alternatively, they can be supplied from a Class 2 power supply.
UL Environmental Rating: Enclosure type 1
B1xx6/-B1xx3
+ (L+)
Q
2
- (M)
Q
1
Sender off
1
2
5
4
3
B2xx3
B3xx3
+ (L+)
Sender off/MF
Q
2
1
5
3
4
> 0 V) once all electrical connec‐
V
(see "Adjustment", page
26)
22)
(see "Additional functions", page
B2xx8/-B2xx7
B1xx8/-Bx
B3xx8/-B3xx7
L/D
1
5
4
B1xx3
- (M)
Q
/C
1
/MF
2
22)
8018110.1K5W/2023/07/10 | SICK
Subject to change without notice