Main Menu - Analog I/O Option Mcb 109 - Group - Danfoss VLT FC 100 Series Programming Manual

Parameter Description

3.24 Main Menu - Analog I/O Option MCB 109 - Group 26

The Analog I/O Option MCB 109 extends the functionality of VLT
number of additional, programmable analog inputs and outputs. This could be especially useful in building management
3 3
system installations where the Adjustable frequency drive may be used as decentral I/O, obviating the need for an
outstation and thus reducing cost.
Consider the diagram
Figure 3.81
Figure 3.82
This shows a typical Air Handling Unit (AHU). As can be seen, the addition of the Analog I/O option offers the possibility to
control all of the functions from the Adjustable frequency drive, such as inlet, return and exhaust dampers or heating/
cooling coils with temperature and pressure measurements being read by the Adjustable frequency drive.
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®
VLT HVAC Drive Programming Guide
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MG11CD22 - VLT
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HVAC Drive adjustable frequency drives, by adding a
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® is a registered Danfoss trademark