91Magtrol Model DSP7000 Dynamometer Controller C h a p t e r 8 – Optional EquipmentoperationFigure 8–7 Alarm Contact Setup15. Press SCALE I button to select yes or no.16. Press ShIFT. The display should appear as follows:POWERBRAKE STATUS SET POINT SET POINT P I DTORQUE SPEED USER DISPLAYIO X USE DACS AS TORQUE & SPEED? XXX Figure 8–8 Torque/Speed Setup17. Press SCALE I button to select yes.18. Press ShIFT. The display should appear as follows:POWERBRAKE STATUS SET POINT SET POINT P I DTORQUE SPEED USER DISPLAYIO CARDX TORQUE DAC SPEED DAC0.000 UNITS/V 0.000 RPM/VFigure 8–9 Torque/Speed DAC Setup Menu19. Press ToRqUE UNITS button and use and buttons and the Decrease/Increase dial toset the desired Torque DAC vlaue.20. Press MAx SPEED button and use and buttons and the Decrease/Increase dial to setthe desired Speed DAC value.21. Press ShIFT 2 times to complete configuration and return to the main menu.8.1.3.1 Torque DAC Scale FactorTorque DAC Scale Factor is scaled in displayed torque units/volt.Example:If the displayed torque units are set to oz·in. and the Torque DAC scale is set to 1 unit/volt,then 1 oz·in. will result in 1 volt at the torque output.8.1.3.2 Speed DAC Scale FactorSpeed DAC Scale Factor is scaled in rpm/volt.Example:If the Speed DAC scale is set to 1000 rpm/volt, then 1000 rpm will result in 1 volt at thespeed output.8.1.3.3 I/O Card A/D Input Signal RangeThe input signals of the I/o card are from -10V to +10V.8.1.3.4 I/O Card DAC Output Signal RangeThe output singals of the DAC is from -10V to +10V.
