Circuit Diagrams; Digital Inputs; Digital Outputs - Vieweg DC 1200 Bedienungsanleitung

Operating Instructions DC 1200

11.3 Circuit diagrams

Digital inputs:

The input signal is active when the
optocoupler is switched on .
The inputs are activated when the
input pin is short-circuited to the GND
pin .

Digital outputs:

If the digital output is set,
the optocoupler is conducting .
Foot switch:
The footswitch input signal is acti-
vated when the input pin is short-
circuited to the GND pin .
Do NOT apply an external supply
voltage to these pins!
This can lead to defect and damage
to the device.
DC 1200
VCC
Input
Microcontroller
GND
DC 1200
Output
Microcontroller
DC 1200
Input
Microcontroller
33
VIEWEG
VCC
Opto-
coupler
D2
GND
Opto-
coupler
GND GND
4k7
33R
WS
SW
GND
I/O-Port
Input
I/O-Port
Output
Foot
switch