Adjustment; Beam-Axis Alignment - Panasonic ST4 Series Instruction Manual

2-6 Adjustment

2-6-1 Beam-axis Alignment

1. Turn ON the power supply unit of this device.
2. Check that the fault indicator (yellow) of ST4-C11 or the fault display (red)
of ST4-C12EX is OFF.
● In case the following error occurs, refer to "Chapter 5 Troubleshooting,"
and report the contents to the maintenance in charge.
• When using ST4-C11: The fault indicator (yellow) lights up or blinks
• When using ST4-C12EX: An error is indicated on the fault display (red).
3. Move the emitter of ST4-A□ vertically and horizontally in order to determine
the range of light received condition with the help of the beam interruption
indicator (red). Then, set the emitter at the center of this range.
The tightening torque should be 0.5N·m or less.
● Loosen the M3 screws with washers tightened between ST4-A□ and the sen-
sor mounting bracket (optional) to adjust the angle vertically. Also, loosen the
M3 screws with washers tightened between the sensor mounting bracket and
the mounting surface to adjust the angle horizontally. Since the shape of sen-
sor mounting bracket varies, refer to "6-3 Dimensions" to adjust the angle.
Adjust vertically
4. Similarly to the step 3, perform the angular adjustment for the receiver of ST4-A□ also.
5. Check that the beam interruption indicators (red) on the emitter and the re-
ceiver of ST4-A□ are turned OFF. Also check that the stable incident beam
indicator (green) of the receiver lights up.
<Reference>
When adjusting the angle between the emitter and the receiver of ST4-A□, check
the range where the beam interruption indicators (red) of the emitter and the receiver
turn OFF (both vertically and horizontally), and adjust the beam-axis to the position
roughly in the center of the range. In doing so, a more stable detection is possible.
<Vertical angle adjustment>
Emitter
Range that the interruption
indicators (red) turn OFF
© Panasonic Industrial Devices SUNX Co., Ltd. 2016
Adjust horizontally
Receiver
M3 screws with washers
M3 screws with washers
<Horizontal angle adjustment>
Emitter
Range that the interruption
indicators (red) turn OFF
Adjustment
Receiver
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