OI T
ouchscreens
PLCs
Automation Software
Power Supplies
Sensors
Communication
Barriers
SA1E
Sensors
184
www.IDEC.com
Safety Precautions
Turn off power to the SA1E Miniature Photoelectric Switches before installation, removal, wiring, maintenance, and inspection.
Failure to turn power off may cause electrical shock or fire hazard.
Instructions
1. Indicator and Output Operation
(except for background suppression type)
Operation LED (yellow)
Stable LED (green)
Sensitivity Control
•
The operation LED turns on (yellow) when the control output is on.
•
The stable LED turns on (green) either at stable incident or stable interrup-
tion. Make sure to use the photoelectric switch after the stable operation is
ensured.
•
In the light ON operation, the output turns on when the receiving light inten-
sity level is 1.0 or over as shown on the right.
•
In the dark-ON operation, the output turns on when the receiving light inten-
sity level is 1.0 or less as shown on the right.
Receiving Light
Intensity Level
Light Receiving
Status
Stable LED
(green)
Operation LED (yellow)/
Control Output
Light ON
Dark ON
Operation
Level
1.2 and
over
Stable Incident
ON
ON
OFF
1.0
Unstable Incident
OFF
Unstable
Interruption
OFF
ON
0.8 and
below
Stable
Interruption
ON
2. Optical Axis Alignment (Light ON)
Through-beam
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.
Polarized retroreflective
Install the reflector perpendicularly to the optical axis. Move the SA1E photo-
electric switch up, down, right and left to find the range where the operation
LED turns on. Fasten the switch in the middle of the range. Polarized retroreflec-
tive type can be installed also by finding the position where the reflection of
projected red light is most intense, while observing the reflection on the reflector
from behind the switch. Make sure that stable LED turns on at stable incident
and stable interruption.
Diffuse-reflective/Small-beam reflective/Convergent reflective
Place the SA1E photoelectric switch where the switch can detect the object.
Move the switch up, down, right and left to find the range where the operation
LED tuns on. Fasten the switch in the middle of the range. Make sure that stable
LED turns on at stable incident and stable interruption. Because the light source
element of small-beam reflective type is a red LED, visual inspection is possible
as well.
