1
General safety notes
2
Notes on UL approval
3
Intended use
4
Operating elements and status indicators
8025301 / 2020-11-13 | SICK
Subject to change without notice
Read these operating instructions before commissioning the device.
■
■
Connection, mounting and configuration of the device must only be carried
out by qualified personnel.
■
NO
2006/42/EC
This device does not constitute a safety component as defined in the
SAFETY
Machinery Directive.
■
When commissioning the device, ensure adequate protection against mois‐
ture, contamination and UV radiation (sunlight).
These operating instructions contain information required during the life cycle of
■
the photoelectric sensor.
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 WTF4FD is an opto-electronic photoelectric proximity sensor (referred to as "sen‐
sor" in the following) for the optical, non-contact detection of objects, animals, and
persons. If the product is used for any other purpose or modified in any way, any
warranty claim against SICK AG shall become void.
Photoelectric proximity sensor with foreground suppression.
Table 1: Operating elements and status indicators
WTF4
-xxxxxx20Axx
FD
1
2
4
3
BluePilot blue: sensing range display
1
Press-turn element / Potentiometer / Teach-Button: adjusting the sensing range
2
LED indicator yellow: status of received light beam
3
LED indicator green: supply voltage active
4
-xxxxxx30Zxx
-xxxxxx10Zxx
2
2
4
3
GENERAL SAFETY NOTES
-xxxxxxA0Zxx
4
3
4
3
1
5