DRUM 2M6984 - Caterpillar

EngineG3606 (S/N: JFE1-UP)G3608 (S/N: XH71-UP)G3612 (S/N: BB21-UP)G3616 (S/N: ZZY1-UP)Introduction
This Special Instruction provides information on customer interface for G3600 A4 Engines.Note: Do not perform any procedure in this publication or order any parts until you understand the information that is contained in this publication.Control System Overview
The G3600 A4 control system consists of the A4 Electronic Control Module (ECM), connected to an array of sensors and control devices used by the ECM to monitor, control, and protect the engine. A "local" Controller Area Network (CAN) data link is used on the engine to allow the ECM to communication with various intelligent control and I/O devices. There is also an array of sensors and control devices that are hardwired to the ECM to complete the system. The spark plugs are driven by the ECM, via ignition transformers at each cylinder.A Global CAN data link is used to connect the ECM to other devices including the Caterpillar® telematics system Product Link, and optional Cat control panels, and the Cat® Electronic Technician (ET) service tool. A global data link is also available for connection to a customer CAN network.Refer to the Operation and Maintenance Manual and individual engine Schematic for individual electrical system component locations on the engines.
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Block diagram of the G3600 A4 control system
Power Supply Requirements
The G3600 A4 control system uses customer provided 24 VDC for control power. The customer is required to provide 24 VDC +/- 2 VDC to the engine terminals under all operating conditions. Current (amperage) requirements for the engine and optional control panels are shown below.General Power Requirements
Power Supply current capability:
20A Minimum, maximum ripple voltage of 150 mVThe steady state amperage draws of an operating engine and control panels are approximately:
G3600 A4 with Product Link – 5.8A – Engine Running
G3600 A4 with Product Link – 3.5A – Engine not running, key switch input on
Optional Operator Control Panel (OCP) – 0.9A
Optional Color Human Machine Interface (HMI) Panel – 0.9AControl Panels
There are two control panels available for the G3600 A4. The OCP provides for an operator interface and control with a 5.5 inch monochrome display for engine monitoring. The HMI is a 15 inch color display that provides an intuitive graphic interface for engine control and monitoring.Operator Control Panel
The main component of the Operator Control Panel (OCP) is the electronic OCP Module. Some of the functions include within the OCP are:
Sending start and stop signals to the engine
Providing visual indications when warning or shutdown events occur
Displaying engine information
Displaying Suspect Parameter Number (SPN) and Failure Mode Identifier (FMI) information for events
Programming set points for the standard OCPRefer to System Operation and Troubleshooting, Testing and Adjusting, UENR3193 for a complete description of OCP functions and operation.
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OCP
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Enclosed OCP
The traditional configuration includes all the components mounted within an enclosure and is designed to meet NEMA 4 requirements.
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Plate-mounted OCP
This style requires mounting within a customer provided enclosure to complete the installation. The plate-mounted OCP can be used to save space by installing the OCP within the main compressor control enclosure.OCP Customer