Rockwell Automation 42BC Rectangular Photoelectric Switch - Manual (Page 2)

Detection Direction
Due to the detection method, the sensor must be positioned
such that the target passes in one of the following directions.
Motion in up/down direction cannot be detected.
Long Range Background Suppression Diffuse
Field of View 3.5°
Transmitting LED Infrared 880nm
Connections 4 pressureĆtype screw
terminals
Targets are rarely as dark as 2.5% reflective. For practical
purposes, data for 14% reflective targets is also provided.
Target
Minimum Distance for Margin 2:1
Near Setting
2.5% black 8cm (3.15in)
100% white 3cm (1.18in)
Far Setting
2.5% black 20cm (7.9in)
100% white 4cm (1.57in)
Typical Suppression Quality for 1m Max Sensors
White Background
100% Reflective
Sensor Off
Black Target
2.5% Reflective
Sensor On
Black Target
14% Reflective
Sensor On Catalog Number
Near" 20.0cm (7.9in) 19.8cm (7.8in) 19.8cm (7.8in)
40.0cm (15.7in) 38.6cm (15.2in) 39.2cm (15.4in)
60.0cm (23.6in) 53.9cm (21.2in) 58.2cm (23in)
42BC-B1LBAL-T4
42BC-B1CRAL-T4
80.0cm (31.5in) 64.8cm (25.5in) 75.8cm (29.8in)
42BC-B1CRAL-T4
Far" 100.0cm (39.3in) 72.2cm (28.4in) 91.4cm (36in)
Typical Suppression Quality for 2m Max Sensors
White Background
100% Reflective
Sensor Off
Black Target
2.5% Reflective
Sensor On
Black Target
14% Reflective
Sensor On Catalog Number
Near" 20.0cm (7.9in) 19.7cm (7.8in) 19.7cm (7.8in)
60.0cm (23.6in) 54.4cm (21.4in) 58.8cm (21.4in)
100.0cm (39.3in) 73.8cm (29.1in) 91.5cm (36in)
42BC-B1LBAL-T4
140.0cm (55.1in) 83.3cm (32.8in) 116.2cm (45.7in)
42BC-B1LBAL-T4
42BC-B1CRAL-T4
180.0cm (70.9in) 88.3cm (34.8in) 133.4cm (52.5in)
Far" 200.0cm (78.7in) 89.9cm (35.4in) 139.6cm (55in)
Long Range Background Suppression Diffuse
Output Characteristics Catalog Number
Operating Voltage
Supply
Current
Output
Energized Type Max Load Current
Max Leakage
Current
Response
Time Cable
12 24V DC ±10% 30mA
NPN/PNP
100mA 0 5mA 20ms
42BC-B1LBAL-T4
12-24V DC ±10% 30mA
Light/Dark
NPN/PNP
Selectable
100mA 0.5mA 20ms
42BC-B1LBAN-T4
24-240V AC/DC 30mA (DC)
Light/Dark
Selectable
S.P.S.T. 3A (250V AC, 750VA)
30ms
42BC-B1CRAL-T4
24 240V AC/DC
±10%
30mA (DC)
4W (AC)
S.P.S.T.
N.O. Relay
3A (250V AC, 750VA)
3A (30V DC, 90W)
Ċ 30ms
42BC-B1CRAN-T4
Publication 75009–071–01(B)
August 1995
Printed in Japan