SICK WT34 Instrucciones De Uso página 26

OPERATING INSTRUCTIONS
5.2 Notes on UL approval
5.3 Electrical installation
en
5.4 Notes on pin assignment
26 O P E R A T I N G I N S T R U C T I O N S | WT34
The cables plugged into the connections are screwed tight.
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If these instructions are not complied with, the IP enclosure rating for the device is not
guaranteed!
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
The sensors must be connected in a voltage-free state. The following information must
be observed, depending on the connection type:
– Plug connection: note pin assignment: when the cover is open, the male connector
can be swiveled horizontally and vertically.
– Terminal connection: note the permissible cable diameter of 5 to 10 mm. When
the cover is open, the M16 fitting can be swiveled horizontally and vertically.
Unscrew the M16 fitting and remove sealing plug. Lead voltage-free supply cable
through and connect sensor in accordance with
M16 fitting with seal so that the IP enclosure rating of the device is ensured.
Figure 1: Opening the sensor
Only apply voltage/switch on the power supply once all electrical connections have
been established.
Explanation of the connection terminology used in the following tables:
• BN = brown
• WH = white
• BU = blue
• BK = black
•
n. c. = not connected
•
Q = digital output
• TE/Test = test input (see
• Alarm = alarm output (see
• L+ = supply voltage (U
• M = ground
table 2
Figure 2: Electrical connection
table 2 and Additional functions)
table 2 and Additional
)
B
and table 4. Retighten
functions)
8009202.1DM8/2022-09-05 | SICK
Subject to change without notice