8
DRIVE SPECIALIST
Where P0010 is the power, P0007 is the voltage, P0003 is the current and P0011 is the power factor.
2. This power will therefore be the mechanical power plus the power dissipated in the motor (motor losses).
3. The lower the speed and load, the greater the difference between the electrical power at the inverter output
and the mechanical power. This situation can be seen in the charts of
Figure 8.2
(a)
Rated speed
(b)
(b) Half rated speed
Figure 8.2:
Example of the difference between mechanical power and electrical power at the inverter output – W22 IR3 Premium Motor, 500
CV, 4 Poles – measurement error not included
The data used for the chart (a) of
Figure 8.2
is described in
Table 8.1
.
Table 8.1:
Torque X Power curve information for rated speed
Load (%)
Efficiency
Mechanical power (kW)
Motor losses with drive (kW)
Electric power (kW)
50%
96,0%
185
8,86
194
75%
96,1%
278
12,95
290
100%
96,2%
370
16,81
387
The data used for the chart (b) of
Figure 8.2
is descibed in
Table 8.2
.
Low Voltage Devices | 8-2
Summary of Contents for Drive Scan
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Page 4: ...Summary of reviews Version Revision Description 1 0X 00 First edition...
Page 11: ...2 INSTALLATION RECOMMENDATIONS Low Voltage Devices 2 2...
Page 59: ...6 SETTING THE DRIVE SCAN ON THE MFM Low Voltage Devices 6 14...
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