Vega SI-12 / User Manual
8
Revision 12 – 03 July 2020
3 OPERATION
CONTACTS
The pulse counter has 10 contacts, see table below (in order from left to right):
Contact
Designation
Power -
+5V
Power +
IN1, IN2, IN3, IN4
Pulse inputs
,
Signal ground
out 1
out 2
Open-collector outputs 1 and 2
Ground contacts ( , ) are used for connection of pulse inputs IN1, IN2, IN3 and IN4.
The counter pulse inputs allow connecting circuits with the following types of NO
contacts:
- reed switch (Herkon);
- mechanical pushbutton;
- open-collector output.
