Yamaha RCX222, User Manual

Page: 410 / 524

5-22
Chapter
5
PARALLEL I/O INTERF
ACE
5-23
2. Ratings
c
CAUTION
See "7. I/O connections" in Chapter 3 for a definition of NPN and PNP
specifications.
1. Input
■
NPN specifications
Method
DC input (positive common type)
Photocoupler insulation method
Input power DC 24V±10%, 7mA/point
Load
OFF voltage: 20.0V min (2.0mA)
ON voltage: 3.0V max (5.0mA)
Response time 20ms Min. (during on/off)
■
PNP specifications
Method
DC input (negative common type)
Photocoupler insulation method
Input power DC 24V±10%, 7mA/point
Load
ON voltage: 19.5V min (5.0mA)
OFF voltage: 6.5V max (2.0mA)
Response time
20ms Min. (during on/off)
2. Output
■
NPN specifications
Method
NPN open-collector (negative common type)
Photocoupler insulation method
Load DC 24V±10%, 100mA/point (resistance load)*
1)
Residual voltage 2.0V or less
Response time 10ms Max.
■
PNP specifications
Method
NPN open emitter (positive common type)
Photocoupler insulation method
Load DC 24V±10%, 100mA/point (resistance load)*
1)
Residual voltage
2.0V or less
Response time 10ms Max.
*
1)
The total load on the same output port (Example: DO20 to DO27)
must be less than 400mA.
2. Ratings