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Author Topic: Field Wire and Ignition Question  (Read 4742 times)

drew

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Field Wire and Ignition Question
« on: October 08, 2009, 01:48:55 PM »
Quote from: Recent Call
Should the field wire be hot when the ignition is on?

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Field Wire and Ignition Question
« on: October 08, 2009, 01:48:55 PM »

drew

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Re: Field Wire and Ignition Question
« Reply #1 on: October 08, 2009, 01:50:45 PM »
Yes and no. The field current is based entirely on the voltage requirements of the charging system. When more power is needed, a higher voltage is dropped through the field current. But, the voltage regulator needs hot ignition to activate. So in a sense, the field voltage will always be cold when the ignition is off, and when the ignition is on, the field voltage can be hot.