Generator Description and Operation CS-130
The CS-130 generator features a high ampere output per pound of weight. The CS stands for charging system and 130 is the measurement in millimeters of the outside diameter of the stator laminations.
This generator and integral regulator does not have a diode trio. The delta stator, rectifier bridge, and rotor with slip rings and brushes are electrically similar to other CS-series generators. A conventional fan and pulley is used. An internal fan cools the slip rings, end frame, rectifier bridge, and regulator.
The charge indicator that appears on the instrument panel as a battery symbol, turns on when the ignition switch is closed and turns off when the engine is running. If the charge indicator is on with the engine running, a charging system problem is indicated. This indicator will glow at full brilliance if any of the following conditions exist:
| • | charging problem occurs |
| • | system voltage is too high or low |
The regulator voltage setting varies with temperature and limits system voltage by controlling rotor field current. When the field current is ON, the regulator actually switches the rotor field current on and off at a fixed rate of about 400 cycles per second. By varying the overall on-off time, correct average field current for power system voltage is obtained. At high speeds, the on-time may be 10 percent and the off-time 90 percent. At low speeds with high electrical loads, on-off time may be 90 percent and 10 percent respectively.
The regulator has four terminals, P, L, I, and S. The regulator and/or the connector may be stamped PLI/FS, or PLFS.
Either the L or I terminal (or both) turns the regulator on and allows field current to flow when the switch is closed. The L terminal must be connected through an indicator lamp or a suitable resistor. The I terminal may be connected either directly to battery positive or through a resistor. These two terminals are often used in parallel, connected to two different vehicle circuits. The P terminal is connected internally to the stator and may be wired to a tachometer or other device. The S terminal may be used to sense voltage at another location on the vehicle for voltage control. If the S terminal is not used, the generator uses an internal voltage sense for control.
The CS-130 generator is not serviceable and no periodic maintenance is required. It should not be disassembled for any reason.
Generator Description and Operation CS-144
The CS-144 generator with an integral regulator features a high ampere output per pound of weight. It does not use a diode trio. The delta stator, rectifier bridge, and rotor with slip rings and brushes, are electrically similar to other CS-series generators. CS stands for Charging System, and 144 indicates the outside diameter of the stator laminations in millimeters. The bearings are sealed with lifetime lubrication in both end frames. No periodic maintenance is required.
Regulator voltage setting varies with temperature and limits system voltage by controlling rotor field current. When the field current is on, the regulator actually switches rotor field current on and off at a fixed frequency of about 400 cycles per second to help control radio noise. By varying on-off time, correct average field current for proper system voltage control is obtained. At high speeds, on-time may be 10 percent and off-time 90 percent. At low speeds, with high electrical loads, on-off time may be 90 percent and 10 percent respectively.
