54 (2) connection example, A) connection example for line-driver output, B) connection example for open-collector output – Yaskawa Sigma II Series DC Power Input SGMAJ User Manual
Page 227: Important
8 Operation
8.6.3 Position Reference
8-54
(2) Connection Example
(a) Connection Example for Line-driver Output
Applicable line driver: SN75174 manufactured by Texas Instruments Inc., or MC3487 or equivalent
*
: Represents twisted-pair wires.
(b) Connection Example for Open-collector Output
Select the limit resistance R1 value so that the input current i will be within 7 to 15 mA.
*
: Represents twisted-pair wires.
When the open-collector output is used, input signal noise margin lowers. Set the parameter Pn200.3 to 1.
Line
driver
SERVOPACK
Host controller
Photocoupler
CN1
1
2
6
5
4
3
/PULS
SIGN
/SIGN
CLR
/CLR
PULS
150
Ω
∗
150
Ω
150
Ω
CN1
1
2
6
5
4
3
/PULS
SIGN
/SIGN
CLR
/CLR
PULS
150
Ω
∗
150
Ω
150
Ω
Example
x
When Vcc is +12V:
R1=1 k
Ω
x
When Vcc is +24V:
R1=2.2 k
Ω
x
When Vcc is +5V:
R1=180
Ω
Note: When the open-collector output is used,
the signal logic is as follows:
When Tr1 is ON
High level input or equivalent
Low level input or equivalent
When Tr1 is OFF
Vcc
R1
i
R1
R1
i
i
SERVOPACK
Host controller
Photocoupler
IMPORTANT