Alternator & Regulator: Description

CS series alternators include a stator, rectifier bridge, and rotor with slip rings and brushes. A built-in regulator incorporates fault detection circuitry.

Most CS series alternators operate with 2 wire connections and a ground path through the mounting bracket. The first wire connection is the BAT (output) terminal. This terminal must be connected to the battery during operation. The second wire connection is through the charge indicator light or an external resistor to terminal "L" of the regulator. This connection provides initial excitation at start-up.

One other regulator terminal, "I", is provided for optional use. Terminal "I" provides an alternative method for turning on the alternator without going through the indicator light or external resistor.