CT Lab Vecto III, User Manual

Page: 41 / 80

Vecto III User Manual
41
2.4.8 Digital inputs
The inputs are arranged into two clusters (1 kV isolation); each containing two digital
inputs (300 V
DC
max) and a 5 V power source with a common. These inputs can be used
to attain information like breaker position or disturbance information that can be
added to the PQ events/data. The inputs are available on an 8-terminal lockable
connector plug with screw terminals. Each terminal can accommodate conductors
with size up to 2.5mm
2
.
Figure 14: Digital inputs connection layout
Terminal Legend Description
1. IN1 Input 1
2. IN2 Input 2
3. +5 V Input A – 5 V Supply
4. CM Input A - Common
5. IN3 Input 3
6. IN4 Input 4
7. +5 V Input B – 5 V Supply
8. CM Switch B - Common
Table 6: Digital inputs connection layout