Motor Torque Vs Speed Performance Chart

The pink line is the motor's rated peak torque curve.

The dark blue line is the motor's rated continuous torque curve.

The green lines are the application motion profiles.

The blue dot is the application RMS torque.

Key performance values and margins are displayed in the top right panel.

Tip:
As is the case for all ServoSoft charts, use the chart crosshairs to get chart values, zoom in and pan to focus on a particular area of the chart, and export the chart data to file for further analysis in a spreadsheet or other tools.

 



Select Any Segment

The same chart as above, except the first move segment is selected, and is highlighted in green.

Recall that a Move consists of 4 segments - Acceleration, Constant Velocity, Deceleration and a Dwell.

You can also hide or display any segment by clicking the checkbox for a specific segment.

 



 Motor and Inverter

The same chart as above, except the inverter's peak and continuous output are overlayed on the chart.

The inverter output curves are a combination of the Inverter peak and continuous rated currents, and the Infeed module's peak and continuous rated power. As you can see in this chart, from 0 to 2000 rpm, the Inverter peak and continuous rated currents are the limiting factors. Above 2000 rpm, the Infeed peak and continuous rated powers are the limiting factors.

This chart also demonstrates the power of ServoSoft's charting. A picture paints a 1000 words. In this particular example, the motion profile was 'shaped' to minimize peak power, and keep the required peak power well under the Infeed module's rated peak power, while achieving the desired move performance. The result was being able to use an existing Infeed module, and not having to upsize the Infeed module at a significant expense. And of course, a larger Infeed module has a domino effect with a larger cabinet, cables, fuses, filter, choke, etc.

 



 Motor and Inverter Power

The same chart as above, except displayed as motor power vs speed. This is done by clicking the Power Curves button in the chart toolbar.

Note: The chart displays the motor's mechanical output power. ServoSoft accounts for all electrical losses, and then displays the full capacility of the motor for the given Inverter and Infeed peak and continuous ratings.