Main Menu - Analog I/O Option Mcb 109 - Group - Danfoss VLT 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
additional, programmable analog inputs and outputs. This could be especially useful in Building Management System instal-
lations where the frequency converter may be used as de-central I/O, obviating the need for an outstation and thus
reducing cost.
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Consider the diagram
Analog I/O Carsd
X42 1 2 3
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 frequency converter, such as inlet-, return- and exhaust dampers or heating/cooling
coils with temperature and pressure measurements being read by the frequency converter.
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MG.11.CC.02 - VLT
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VLT HVAC Drive Programming Guide
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HVAC Drive frequency converters, by adding a number of
M
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Control Card
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is a registered Danfoss trademark
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Power card
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Humidi er steps
or
Cooling steps