KEYENCE SR-500 Series - Manual (Page 3)

3 E SR-500-IM
 Connecting the power
Connect using a cable that is
4.8m or less in length.
 Timing and preset input wiring
The timing input is used on the SR-500 Series to start reading 2D codes or bar-
codes.
The preset input is used on the SR-500 Series to register data from the 2D
codes or barcodes.
• The timing and preset inputs are both non-voltage inputs.
 OK/NG/ERROR/BUSY output wiring
• OK output is used when the reading is successful, checked against the pre-
set data, and determined to be okay.
• NG output is used when the reading is checked against the preset data
and determined to be NG (not good).
• ERROR output is used when the reading has failed.
• BUSY output is used as the waiting signal when a timing input has not been
received by the SR-500 Series, or it is used as the preset data registration
completion signal or the control signal for the external light.
Each signal is output in the format of NPN open collector.
 RS-232C wiring
Use the following wiring to connect to a computer.
Adjust to the following installation angle and distance when installing the SR-
500 Series.
 Adjusting the installation angle
The scanner for the SR-500 Series should be tilted 20° compared to the 2D
code or barcode surface to read. Installing at this angle provides the optimal
reading stability.
 Adjusting the installation distance
1
Press the [TUNE] switch on the SR-500 Series to emit the laser pointer, and
adjust the installation distance.
The laser pointer emits as shown in the diagrams below.
For the SR-500
The point where the laser pointers intersect
is the optimum reading distance.
Adjust the laser pointer intersection so that
it lies directly in the middle of the 2D code
and barcode.
For the SR-510
The two laser pointers indicate
the laser pointer width.
Adjust the laser pointers so
that the 2D code and barcode
lie directly in the middle.
2
Use the [TEST] switch and check the reading stability in both reading rate
measurement mode (press for 1 second) and reading position measurement
mode (press for 3 seconds). Fine tune the reading distance and angle for the 2D
codes and barcodes that you plan to use.
Note
• Do not use a reverse connection to the power supply.
Doing so may lead to damage on the unit.
• Use a stable power supply that is 5VDC+5%, -10%. Using
a power supply that exceeds this range may lead to
damage on the unit.
• Use an NEC Class 2 output power supply when operating
under UL standards.
GND
+5V
12
+ 11
5VDC
10k Ω 100 Ω
TIM
GND
12
6,10
With or without
contacts
4.7k Ω
5VDC
Internal circ
u
it
Internal circ
u
it
GND
OK/NG
12
+
1, 2,
5, 9 Load
* Rated load: 24VDC (30mA) or less
3.3kW
6.8kW
33V
RxD(RD)
RxD
RTS(RS)
RTS
TxD(SD)
TxD
SR-500 Series DOS/V computer
D-sub 9-pin
(female)
#4-40 screw
Round
connector
12-pin
(male)
CTS(CS)
CTS
GND(SG) GND
+5V
+
DTR(ER)
DSR(DR)
3
4
7
8
12
11
2
7
3
8
5
4
6
Installing the SR-500 Series
Reference
When using workpieces such as directing marking on boards
where there is low contrast between the code and the
background, increase the installation angle (larger than 20°)
to stabilize the reading.
The optimum angle for the
SR-500 Series is 20° from
the line perpendicular to
the back of the unit.
Reading distance
20°
Laser pointer
29mm
Laser pointer
100mm