Estimated Quantities; Rotational Speed [Rpm]; Load [%, Kw] - WEG Motor Scan Manual General De Instalación Y Operación

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Figure 5.18 - b: Frequency vibration analysis: zoom from the chart with vibration data at a specific frequency point - on the WEG IoT
5.5. ESTIMATED VALUES
In firmware version 2.1.4 or later, the rotational speed and load are estimated, enabling the monitoring of the
motor performance in the application.
The estimation of these values is based on data acquired by the sensor and rated data informed during the
motor registration process in the plant. Ensuring that all identification fields are correctly filled out is critical for
proper estimation.

5.5.1 Rotational speed [rpm]

The estimated rotational speed can be viewed in the mobile app (Figure 5.16) and in the WEG IoT Platform
(Figure 5.19).

5.5.2 Load [%, kW]

NOTE!
Load estimation will only be available on motors that not driven by frequency inverters.
The load estimation applied to the motor in percentage of the rated load and in kW depends on several factors,
such as: estimated rotational speed, supply voltage and frequency, temperature and rated values informed on
the nameplate.
For rated values, the deviation from the estimated value may vary by an average of 10% from the rated point.
Estimated load values can be viewed on the mobile app and in the WEG IoT Portal. The figure 5.19 shows the
estimated performance of a certain motor based on data obtained from a WEG Motor Scan sensor. Estimated
performance values are always related to the last acquisition made by the sensor. The figure 5.20 shows the
load graph in percentage for a given time period. Mousing over the graph displays a text box with information
on the day, time and estimated load values with their permissible variation (minimum and maximum).
The minimum and maximum values of the estimated load indicate that the load value may be within this range –
due to all possible variations for the motor rated values.
Figure 5.19 - Beta Version of motor estimated performance – on the WEG IoT Platform screen.
46 Manual of Electric Motors
Platform screen.