SICK W34 Betriebsanleitung Seite 24

OPERATING INSTRUCTIONS
5.2 Notes on UL approval
en
5.3 Electrical installation
24 O P E R A T I N G I N S T R U C T I O N S | WS/WE34
NOTE
Layout of data cables
Use shielded data cables with twisted-pair wires.
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Implement proper and complete shielding concept.
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To avoid interference, e.g., from switching power supplies, motors, clocked regula‐
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tors, and contactors, always use cables and layouts that are suitable for EMC.
Do not lay cables over long distances in parallel with voltage supply cables and
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motor cables in cable ducts.
The IP enclosure rating for the device is only achieved under the following conditions:
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 2: Opening the sensor
Only apply voltage/switch on the power supply once all electrical connections have
been established.
table 2 and table 5. Retighten
Figure 3: Electrical connection
8009200.1DM8/2022-09-05 | SICK
Subject to change without notice