YASKAWA Sigma II Series User Manual page 84

Sigma II User's Manual
or equivalent
Connection Example 2: Open-collector Output
Set limiting resistor R1 so that input current, I, falls within the following range:
The examples below show how to select the pull-up resistor R1 so the input current,
I, falls between 7 and 15mA.
Application Examples of V = IR
R1 = 1kΩ with V
Note: The following table shows the signal logic for an open–collector output.
This circuit uses the 12V power supply built into the servo amplifier. The input is
Host controller
Line-driver
P
P
P
Host controller
Vcc
R1
i
P
Tr1
R1
P
R1
P
P represents twisted pair wires
= 12V ±5%
CC
Tr1 Output Level
Equivalent to high–level input
ON
Equivalent to low–level input
OFF
Chapter 5: Parameter Settings and Functions
Servo amplifier
Photocoupler
PULS CN1-7
150Ω
/PULS CN1-8
SIGN CN1-11
/SIGN CN1-12
CLR CN1-15
/CLR CN1-14
Servo amplifier
Photocoupler
PULS CN1-7
150Ω
/PULS CN1-8
SIGN CN1-11
/SIGN CN1-12
CLR CN1-15
/CLR CN1-14
R1 = 180Ω with V = 5V ±5%
CC
Signal Logic
5-17