Setting The Minimum And Maximum Output - Siemens LMV27.100x2 Basic Documentation

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Building Technologies

10.3.6 Setting the minimum and maximum output

When changing the setting of minimum and maximum output after making the
curve settings, following is to be observed:
After leaving the curve settings with completely defined curvepoints, proceed in
modulating operation by setting the minimum / maximum output (parameter 546).
In the case of warm settings, the parameterized output remains active until the
minimum/maximum output setting is completed. Any change of the minimum/maximum
output is adopted by the parameterized output. Automatic operation becomes active
only after leaving the minimum/maximum output.
This procedure ensures that the LMV27 maintains the output set by the user, thus
facilitating troublefree setting of the minimum/maximum output.
Benefits:

The current output always corresponds to the minimum / maximum output
presently parameterized, or to the system output of the curve settings made last,
which means that the output can be ascertained accurately and free from
interference

The load sources of low priority (contacts, analog input, power output of the building
automation system, manual output) are deactivated

During the curve and the subsequent minimum/maximum output settings, the
Manual OFF function is deactivated

Unambiguous and easy-to-understand behavior of the system
Note
If there is no need to limit the output, it is not necessary to set the minimum / maximum
output. In that case, the undefined minimum / maximum output corresponds to a
minimum output of 20% and a maximum output of 100%.
No. Parameter
546 Upper output limit
undefined = 100 %
Basic Documentation LMV27...
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CC1P7541en
17.12.2018