Omron SJDE-APA-OY - Connection Examples of Input Signal; Line Driver Output; Open-Collector Output

3.12 Connection Examples of Input Signal
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3.12 Connection Examples of Input Signal
 Line Driver Output
Applicable line driver: SN75174 or MC3487 (Manufactured by Texas Instruments or equivalent)
 Open-collector Output
Set the current limit resistors R1 through R3 so that the input current (i) will be within the following
range.
Input Current (i) = 7 mA to 15 mA
SERVOPACK
Photocoupler
Host Controller
1
2
9
8
4
3
/PULS
SIGN
/SIGN
CLR
/CLR
PULS
75Ω
7mA
∗
Twisted-pair wires∗
CN1
75Ω
75Ω
75Ω
75Ω
75Ω
6
5
3.4kΩ
/S-ON
+24VIN
0V
24VDC Power Supply
+24V
Photocoupler
1
2
9
8
4
3
/PULS
SIGN
/SIGN
CLR
/CLR
PULS
∗
Vcc
R1
i
R2
Tr1
Tr2
Tr3
R3
i
i
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω
SERVOPACK
Photocoupler
7mA
CN1
6
5
3.4kΩ
/S-ON
+24VIN
0V
+24V
Examples:

When Vcc is
+
12V: R1 through R3=1 kΩ

When Vcc is
+
24V: R1 through R3=2.2 kΩ

When Vcc is
+
5V: R1 through R3=180 Ω
Note: The following signal logic applies for an
open-collector output.
Tr1 to Tr3 ON Equivalent to high level input.
Equivalent to low level input.Tr1 to Tr3 OFF
Host Controller
24VDC Power Supply
Twisted-pair wires∗
TOEP_C710806_01A_0_0.book Seite 39 Montag, 2. Juli 2007 4:24 16