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Nicotra DDMP Series User Manual

Nicotra DDMP Series
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12
Rev. 2 – 10
th
November2015
Analog Signal Command
The fan speed is proportional to the analog input voltage and the relationship is shown in figure 14.
Fig.14 – Analog signal-Speed relationship
The MAX and min speed default values changes in function of the fan sizes .
In the table 1 there are all the default values of actual DDMP series.
The MAX and min speed values are changeable via Modbus, setting the HOLDING
REGISTER 1 and 2 that are MIN RPM and MAX RPM.
Don’t set values outside the minimum and maximum RPM default value indicated in the
table 2 or possible fan wheel explosion or motor failures may occur (see Modbus
communication” paragraph).
Don’t set the MIN RPM higher than the MAX RPM otherwise the driver stop working
without any alarm indication!
The MIN RPM value can’t overtake the 1000rpm value

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Nicotra DDMP Series Specifications

General IconGeneral
BrandNicotra
ModelDDMP Series
CategoryFan
LanguageEnglish

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