60Magtrol Model DSP7000 Dynamometer ControllerChapter6 – Manually ControlledOperationOPERATION6.4 how to set speed ControlNote: When using speed control, motors between 0 and 100 rpm cannotbe tested unless the dynamometer is equipped with an optional,high resolution speed encoder.1. beginning with the brake in the oFF position, press ShIFT.2. Press MAx SPEED button. The display should appear as follows:POWERBRAKE STATUS SET POINT SET POINT P I DTORQUE SPEED USER DISPLAY0.000 XOFF0.000 XX.XX0000 0% 0% 0%0 MAX SPEEDFigure 6–4 Max Speed Menu3. Use and buttons and the Decrease/Increase dial to set a value equal to or slightly greaterthan the free-run speed of the motor under test.4. Press the ShIFT button to exit the MAx SPEED function.5. Press the SPEED SET button.6. Use and buttons and the Decrease/Increase dial to set a speed equal to the max speed.Note: PID values should be set at this time. See Section 4.3 – Setting theCorrect PID’s for Your Motor.7. Use the brake oN/oFF button to turn the brake oN.8. Start the motor under test.9. Press the SPEED SET button and adjust the set point to the desired speed.Desired resultsThe dynamometer should load the motor under test to the desired speed quicklywith little or no overshoot when the bRAkE button is cycled oN or oFF.
