Electronic Control System Operation
One Electronic Control Module (ECM) is installed on the engine. A second ECM is optional. The second ECM is called the Auxiliary Sensing Module (ASM). The ASM improves the genset's ability to maintain a consistent level of frequency and voltage through improved processing of the signal.
The ECM controls most of the functions of the engine. The operator's interface with the engine control is provided by the Caterpillar Electronic Technician (Cat ET) and by the control panel. For information on Cat ET, refer to Systems Operation/Testing and Adjusting, "Electronic Service Tools".
There are two possible configurations for the engine's control system. Illustrations 1 and 2 are diagrams of the components in the engine's electronic control system.
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| Illustration 1 | g01300921 |
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Control system with an Auxiliary Sensing Module (ASM) | |
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| Illustration 2 | g01300922 |
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Control system without an Auxiliary Sensing Module (ASM) | |
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