Analog I/O Option Mcb - Danfoss VLT FC 102 Series Design Manual

Selection
When 24 V backup option MCB 107 supplies the control
circuit, the internal 24 V supply is automatically
disconnected.
3 3
Figure 3.10 Connection to 24 V Backup Supplier (A2-A3).
Figure 3.11 Connection to 24 V Backup Supplier (A5-C2).
64
Design Guide

3.1.9 Analog I/O option MCB 109

The Analog I/O card is to be used, e.g., in the following
cases:
Figure 3.12 Principle Diagram for Analog I/O Mounted in
Adjustable Frequency Drive.
Danfoss A/S © Rev. 06/2014 All rights reserved.
•
Providing battery backup of clock function on
control card
•
As general extension of analog I/O selection
available on control card, e.g., for multi-zone
control with three pressure transmitters
•
Turning the adjustable frequency drive into a de-
central I/O block supporting a Building
Management System with inputs for sensors and
outputs for operating dampers and valve servos
•
Support Extended PID controllers with I/Os for
setpoint inputs, transmitter/sensor inputs and
outputs for servos
MG11BC22