SICK LE20 Instrucciones De Operación página 327

Operating Instructions
LE 20
Type WS/WE 18-2
Order No.
Termination type: equipment plug
Cable length
Scan. range SR/scanning range max.
Supply voltage U
V
Current consumption, max.
3
Ripple )
Light sender
Light spot diameter
Aperture angle/receiving angle
Switching outputs
Signal voltage HIGH/
max. switching output
4
Signal voltage LOW )/
max. switching current
Output current I max./
A
max. switching capacity
Pull-down resistance
5
Response time ); switch. sequence
max. 6 )
Test input TE
Sender on
Sender off
Enclosure rating
VDE protection class
Circuit protection
Ambient operating temperature T
Storage temperature T
L
Weight
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
8 008 685/Q913/2007-05-21
Appendix
Sender WS 18-2
D 162 D 460
2 020 889 2 020 876
4-pin
2 m
0 ... 10 m/0 ... 12 m (typical)
DC 24 V –30 %, +20 %
2 35 mA
)
<5 V
SS
LED, visible red light (660 nm),
pulsating, average service life 100,000 h (at T
300 mm (approx.) at distance of 10 metres
1.5° / 3.0°
TI to U
V
TI to 0 V
IP 67
U connections reverse polarity protected, outputs Q and Q short-circuit
V
protected, noise pulse suppression
–25 ... +60 °C
U
–40 ... +75 °C
100 g 30 g
tolerances
V
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
Receiver WE 18-2
D 660 P 162
2 020 891 2 020 890
6-pin
2 m
1
)
25 mA
= 25°C)
U
PNP, Q and Q
U – 2.9 V
V
0 V (approx.)
100 mA
Ω
>10 k
max. 500 µs; 1000/s
IP 65 IP 67
100 g
GB
Chapter 11
P 460 P 660
2 020 875 2 020 892
4-pin 6-pin
–
IP 65
–
30 g
3 2 7