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SICK WS34 Manual De Instrucciones página 24

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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.
Implement proper and complete shielding concept.
To avoid interference, e.g., from switching power supplies, motors, clocked regula‐
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
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.
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

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