Daikin EWWQ-AJYNN, Руководство по обслуживанию

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Functional Control ESIE07-05
2–60 Part 2 – Functional Description
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2.8 Unit Load Limiting
Introduction The Unit load limiting function finds application in all those situations when it is necessary to reduce
the electric absorption of the unit, in determined periods of the day.
Load limiting It is possible to limit the unit absorption using one of the two options available under user menu.
■
The first way, called “Demand Limit” requires a 40mA - 20mA external signal (connections 37 and
38 on M3). The unit max load decreases from 100% to 0% as the input increases from 4mA to
20mA.
■ The second way, called “Current Limit” needs a direct measure of the current absorbed by the unit
and the set of the maximum current to be absorbed. (Option: SPN unit)
Remark: Current limit screen appears only if b8 probe is enabled under maintenance menu.
0 %
Unit max load
100 %
External signal
4mA 20mA
Demand Limit
Unit Limiting
Current Limit
Unit Limiting
4m A
20 mA
Max Curr.
000 A
400 A
300 A
Current Limit Set
ESIE07-05.book Page 60 Friday, December 21, 2007 3:21 PM