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Unread 08-04-2010, 12:15
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Re: Black Jaguars on old IFI controls

The main difference is the maximum PWM pulse length. On the jaguar, it's longer then the IFI control system supports. When you give full speed on the IFI controller, the jaguar will only be at about 2/3 speed. Be sure to calibrate the Jaguar in accordance with the manual and you will be able to get the full output range.

The PWM chop frequency (120hz for Victor and 15khz for Jaguar) has no bearing on the control system. The maximum PWM update rate (approx 100hz for Victor, 200hz for Jaguar) does have an effect in that the cRIO will update the Jaguars faster then the Victors, but it's inconsequential for the IFI control system because it updates slower then the max for both.