Aurora Generators ES52 — Selecting the Engine Speed Range
Adjustments · DIP switches 4 and 5
For the Aurora Generators ES52, from the Aurora Generators service manual.
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Procedure
- Generator output: use speed range 1 (LO).
- Flywheel alternator: use speed range 1 (LO); refer to engine specification for number of poles.
- Engine alternator: use speed range 1 (LO) or 2 (HI); refer to engine specification for pulley ratio and poles.
- Magnetic pickup: use speed range 2 (HI).
- Set SW4 and SW5 per range table: LO = OFF/OFF, HI = ON/ON.
Specs & values
- LO Crank Disconnect 12 - 140 Hz
- LO Over-Speed 44 - 300 Hz
- HI Crank Disconnect 60 - 4156 Hz
- HI Over-Speed 300 - 8492 Hz
Source: Aurora Generators 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.