KEYENCE SR-750 Series - Manual (Page 60)

60 E SR-750 UM
6-1
Before Mounting the
SR-750 Series
This section describes points to be checked before mounting the SR-750 Series.
Check the mounting conditions as follows.
„ Confirm that ambient light (sunlight, other lights,
photoelectric sensors, etc.) is not affecting the SR-750 Series.
Prevent ambient light from entering the light receiving area for the SR-750 Series.
Ambient light may lead to unstable readings or incorrect readings.
„ Check whether the reader's beam is obstructed.
If the beams of light are obstructed, the barcode may become undetectable.
„ Check whether the reader's angle creates a specular reflection.
If the beam reflects on the code at a right angle (specular reflection), the reading
may be unstable or incorrect.
„ Confirm there are no metallic or mirrored surfaces in the
light receiving area.
If strong reflected light from a shiny surface enters the receiver of the SR-750
Series, the reading may become unstable or produce unstable results.
„ When using several SR-750 Series in a row, confirm that
they do not interfere with each other.
If light from one SR-750 Series unit enters the receiver of another, the reading may
become unstable.
Remedy
Remedy
Remedy
Remedy
Remedy
TEST TUNE
SR-6 25
POW ERR NET IN ST B
OK /NG/
Photoelectric
sensor
TEST TU NE
SR -625
POW ERR NET IN STB OK/N G/
Change sensor position
Shield from
ambient light
Obstruction
Light
Code Change the position of the obstruction
so that the path of ligaht is unhindered
Light
15°
This angle is essential for
proper reading.
TEST TUNE
SR-625
POW ERR NET IN STB OK/NG/
Metallic
surface
TEST TUNE
SR-625
POW ERR NET IN STB OK/NG/
Apply black tape
to the metallic
surface to prevent
reflection
TEST TUNE
SR-625
POW ERR NET IN STB OK/NG/
TEST TUNE
SR-625
POW ERR NET IN STB OK/NG/
Code
SR-750 Series
TEST TUNE
SR-625
POW ERR NET IN STB OK/NG/
TEST TUNE
SR-625
POW ERR NET IN STB
OK/NG/
Install a
shield
Provide sufficient
distance with which
there is no interference.
6-2
Mounting the SR-750 Series
This section describes the mounting method of the SR-750 Series.
When using the included mounting bracket
1
Attach the SR-750 Series to the included mounting bracket.
Select the appropriate mounting method from below according to the
application.
2
Fix the mounting bracket to the device.
* Mounting screws (M4) are not included. The thickness of the mounting
bracket, insulating spacer and washer included is approximately 4 mm.
3
Adjust the installation angle of the SR-750 Series.
The adjustment angle for the mounting bracket is ± 10°.
When not using the included mounting bracket
With this method, you can attach the SR-750 Series to the device without using the
included mounting bracket.
Prepare the following item before mounting the SR-750 Series.
• Main unit mounting screw (M4)...Screw hole depth of the SR-750 Series: 5 mm
1
Fix the SR-750 Series at the mounting position with M4 screws.
(Tighting torque 0.5 N•m)
NOTICE
• Be sure to mount the supplied insulation spacer to suppress the
influences of electrical noise from the device.
If the insulation spacer is not mounted, electrical noise may be
generated causing reading error or incorrect reading.
• On the bottom of the mounting bracket, the insulation sheet is
attached. Do not peel off this sheet.
TEST TUNE
SR-625
POW ERR
NET IN STB
OK/NG/ TEST TUNE
SR-625
PO W ERR
NET IN STB
OK/NG/
Mounting bracket
Mounting
bracket
Included mounting screw (M4)
Tighting torque 0.5 N•m
TEST TUNE
SR-625
POW ERR
NET IN STB
OK/NG/
Mounting screw (M4)
Washer
Insulating spacer
TEST
TUNE SR-625
POW ERR
NET IN
STB
OK/NG/
Mounting screw (M4)
Mounting screw (M4)