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Results
You can see from the selection data the required load margin for the
selected unit. When the margins are positive the unit meets the
requirements.
Note A large margin causes over-dimensioning. If the margin is
negative, the unit cannot meet the requirements. When the motor
type is ACS800, where a thermal model is used, the margin of
continuous current can be negative when ambient temperature is
below 40 °C.
Efficiency
report
Graph display
Click Efficiency Report push button in motor data sheet to see
efficiencies and losses in printable form (see Figure 4 – 2). This
sheet is available only for single drives.
This display helps you check how well the unit fits the requirements.
The graphs display load and motor torques, load and motor powers
and load and inverter currents. Figure 4 - 3 shows the graph for load
and motor torques as a function of speed.
Figure 4 - 3 Graphs for motor
On the display, a legend explains the curves. Each curve has its own
color.
4-4
User Manual