Quote:
Originally Posted by GoAndrewGo
To your knowledge, are all fault conditions fixable, or is it possible that no matter what this Jaguar needs to be replaced.
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We had the exact same problem, once we connected the Jag to a pc, BDC-Com reported an under voltage error. Turns out they are having a problem with the 5v regulators. The following is a report from Luminary Micro:
Quote:
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"Voltage regulator Failure (REG): Failures of the 3.3 V or 5.0 V linear regulator could be due to one of two conditions. The most likely root cause is excessive current draw from the power rail at the interface connector. The regulator is specified to shut down internally under these conditions; however, our testing has shown that this regulator feature does not work correctly. The second possible root cause is input over-voltage. The regulators have a maximum input voltage of 15 V, which is reflected in the absolute maximum rating of the Jaguar module. Bench tests have shown that the regulators function beyond 15 V with no degradation or failures at less than 17 V. Although there is no measured data showing DC supply voltages greater than 15 V, there is speculation that the supply could exceed this under certain regenerative conditions. Efforts to replicate this failure on the bench using a motor in full-regeneration were unsuccessful. Despite lack of correlation with bench testing, this is the only reasonable explanation for certain regulator failures, and because of the range of installations, not every condition can be reasonably replicated. Luminary Micro will use a regulator with an increased voltage range and functional over-current protection in future revisions of this design."
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