sa1e-tan2c IDEC Corporation, sa1e-tan2c Datasheet - Page 18

• Manufacturer Part Number: sa1e-tan2c
• Description: Sa1e Miniature Photoelectric Switches
• Manufacturer: IDEC Corporation

SA1E Miniature Photoelectric Switches (Built-in Amplifier Type)
6. Convergent Reflective Type SA1E-G (Infrared LED w/sensitivity adjustment)
18
1. Indicator and Output Operation
• The operation LED turns on (yellow) when the control output is on.
• The stable LED turns on (green) either at stable incident or stable
• In the light ON operation, the output turns on when the receiving
• In the dark-ON operation, the output turns on when the receiving
• Sensing Distance vs. Hysteresis
• Excess Gain
Operation
Level
• Brightness vs. Sensing Distance
Object: Colour chips of colour standards according
interruption. Make sure to use the photoelectric switch after the
stable operation is ensured.
light intensity level is 1.0 or over as shown on the right.
light intensity level is 1.0 or less as shown on the right.
Instructions
(except for background suppression type)
100
10
10
to JIS Z8721 (Non Glossy Edition)
50
45
40
35
30
25
20
15
10
Sensitivity Control
1
9
8
7
6
5
4
3
2
1
0
5
0
N2
0
0
N3
Sensing Distance (mm)
10
50
N4
Distance (mm)
Brightness
20
100
N5
N6
150
30
N7
40
200
N8
Stable LED (green)
Paper
Paper
White
Paper
Black
Gray
Operation LED (yellow)
50
N9
• Control Knob vs. Sensing Distance
• Lateral Displacement
• Color Mat Paper and Other Materials
1000
100
900
800
700
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
-2
-4
-6
-8
8
6
4
2
0
0
0
0
0
X
X X
Sensing Distance X (mm)
Control Knob (turns)
1
10
Object Size:
Y
Object:
white mat paper
2
20
3
2. Optical Axis Alignment (Light ON)
• • • • Through-beam type
100mm
Operation
Level
Fasten the receiver temporarily. Place the projector to face the
receiver. Move the projector up, down, right and left to find the
range where the operation LED turns on. Fasten the projector in
the middle of the range. Next, move the receiver up, down, right
and left in the same manner and fasten in the middle of the range
where the operation LED turns on. Make sure that stable LED
turns on at stable incident and stable interruption.
30
Receiving Light
50 mm
Intensity Level
4
White
Paper
40
5
1.2 and
0.8 and
below
Paper
Black
Paper
over
Gray
1.0
50
6
Interruption
Interruption
Receiving
Unstable
Unstable
• Color Mat Paper and Other Materials
• Object Size vs. Sensing Distance
• The graph on the left shows the sensing distances
• Note that sensing may be affected by reflective
• Referring to the graph on the left, provide a suffi-
Incident
Incident
Status
Stable
Stable
for different colors and materials and can be used
as a reference when setting the distance. Because
sensing distance depends on the object’s size and
surface condition, provide a sufficient distance.
object behind the sensing object.
cient distance between the photoelectric switch
and background.
Light
200
150
100
100
50
75
50
25
50
40
30
20
10
0
0
0
Comparison of sensing distance when set to
detect white mat pater (200 x 200 mm) at 200 mm
Comparison of sensing distance when set to
detect white mat pater (200 x 200 mm) at 100 mm
0
(green)
Stable
LED
OFF
ON
ON
20
Side Length A (mm)
Operation LED (yellow)/
Light ON
40
OFF
ON
Control Output
X
Object:
white mat paper
X X
60
A
c
A mm
Dark ON
(07/03/06)
OFF
ON
80