SICK LE20 Instrucciones De Operación página 325

Operating Instructions
LE 20
Type WS/WE 12-2
Order No.
Termination type: equipment plug
Cable length
Scan. range SR /scanning range
max.
Supply voltage U
V
Current consumption, max.
Ripple 3 )
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
Resp. time 5 ); switching sequence
max. 6 )
Test input TI
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) Under no load
3) Must not overrange or underrange U
4) At T = + 25 °C and 100 mA output current
U
5) Signal transit time under resistive load
6) With light/dark ratio 1:1
8 008 685/Q913/2007-05-21
Appendix
Sender WS 12-2
D 160
2 021 439
2 m
0 ... 10 m/0 ... 12 m (typical)
DC 24 V –30 %, +20 %
2 ) 35 mA
<5 V
SS
LED, visible red light (880 nm), pulsating,
average service life 100,000 h (at T
500 mm (approx.) at distance of 10 metres
3.0° / 3.0°
TI to U or unswitched
V
TI to 0 V
IP 67
U connections reverse polarity protected, outputs Q and Q short-circuit
V
protected, noise pulse suppression
–40 ... +60 °C
U
–40 ... +75 °C
200 g
tolerances
V
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
Receiver WE 12-2
D 460 P 160
2 021 441 2 021 440
4-pin
2 m
1
)
25 mA
= 25 °C)
U
PNP, Q and Q
U – 2.5 V
V
0 V (approx.)
100 mA
>10 k
max. 500 µs; 1000/s
120 g 200 g
Chapter 11
P 460
2 021 442
4-pin
–
Ω
–
120 g
GB
3 2 5