Generac — PMG electric connection
Installation · PMG (auxiliary exciter) / voltage regulator
From a Generac service manual — check it applies to your exact model before use.
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Before you start
- It is not necessary to replace the voltage regulator for another model when installing the PMG assembly.
Procedure
- Disconnect the voltage regulator terminal 3 auxiliary coil cable 3.
- Connect PMG terminal 3 in voltage regulator terminal 3.
- Connect PMG terminal 4 in the voltage regulator terminal E3/4 along with the alternator main stator cable E3/4.
Specs & values
- F+ and F-: Main exciter field
- E1 or E2: Single-phase voltage feedback
- E3/4: Common terminal of power circuit supply and single-phase feedback of voltage regulator
- 3: Power circuit supply of the voltage regulator
Source: Generac service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.