SICK LE20 Instrucciones De Operación página 333

Operating Instructions
LE 20
Type WS/WE 27-2
Order No.
Termination type: equipment plug
Scan. range SR/scanning range (max.)
Supply voltage U
V
Current consumption, max.
3
Ripple )
Light sender
Light spot diameter
Aperture angle/receiving angle
Supply connections
Signal voltage HIGH /
max. switching output
4
Signal voltage LOW )/
max. switching current
Output current I max. /
A
max. switching capacity
Pull-down resistance
Resp. time 5 ); switch. sequence
6
max. )
Test input >>TI<<
Sender on
Sender off
VDE protection class 7 )
Enclosure rating
Circuit protection
Ambient operating temperature T
Storage temperature T
L
Weight
Front screen heating
1) The external voltage supply of the devices must withstand a momentary power failure lasting 20 ms (to EN 60204).
Suitable power supply units are available from SICK as accessories (Siemens series 6 EP 1).
2) Without load
3) Must not overrange or underrange U
4) Where T = +25 °C and with 100 mA output current
U
5) Signal transit time with resistive load
6) With light/dark ratio 1:1
7) Rated voltage 50 V DC
8 008 685/Q913/2007-05-21
Appendix
Sender WS 27-2
D 450 S 05 D 460
2 018 932 2 021 365 2 017 894 2 018 618 2 018 933 2 021 708 2 017 895 2 018 619
4-pin
0 ... 25 m/0 ... 35 m (typical)
24 V DC –30%, +20%
2 45 mA 35 mA
)
<5 V
SS
LED, visible red light, pulsating,
average service life 100,000 h
(at T = 25°C)
U
1200 mm (approx.) at distance of 25 m
±4° (approx.)
TI to U or unswitched
V
TI to 0 V
IP 67
U connections reverse polarity protected, outputs Q and Q short-
V
circuit protected, noise pulse suppression
–40 ... +60 °C
U
–40 ... +75 °C
100 g (approx.)
–
tolerances
V
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
Receiver WE 27-2
D 730 D 750 F 450 S 05
7-pin 4-pin
1
)
35 mA 45 mA 45 mA
PNP, Q and Q
U – 2.9 V
V
0 V (approx.)
100 mA
>10 k
max. 500 µs; 1000/s
–
Chapter 11
F 460 F 730 F 750
7-pin
35 mA 35 mA 45 mA
–
Ω
–
– –
GB
3 3 3