UNION-FLARED 5K9242 - Caterpillar

System Operation Description:The engine control switch (ECS) is used by the operator for manually controlling the engine. The ECS has four positions and each position connects to a corresponding input of the Generator Set Control (GSC+). The selected position of the ECS connects the corresponding input of the GSC+ to the − Battery terminal. At any time, only one of these four positions (inputs) is connected to the − Battery terminal.Each position of the ECS places the engine in a different mode. The four positions and the corresponding modes are described in the following paragraphs.Note: The Generator Set has a jumper wire between terminals 6 and 9 on the Engine Control Switch (ECS). This jumper wire provides power to the Generator Set Control (GSC+) when the battery disconnect switch is closed and the ECS is in the OFF/RESET position. Unless a timer is installed in the circuit, this jumper wire also provides power to the key switch input of the engine Electronic Control Module (ECM) when the battery disconnect switch is closed and the ECS is in the OFF/RESET position. The timer interrupts power to the key switch input of the engine ECM when the battery disconnect switch is closed and the ECS is in the OFF/RESET position. Cycling power to the key switch input of the ECM will reset the ECM and all active diagnostic codes. The bottom dial on the timer should be set to 0.7. The middle dial on the timer should be set to 3 seconds. The top dial on the timer should be set to E."OFF/RESET" - The engine is shut down and the GSC+ is reset. The upper display and fault indicators on the left side are temporarily cleared. The GSC+ turns OFF unless a jumper is installed at the ECS. The jumper electrically connects terminal "6" to terminal "9" on the ECS."AUTO" - The engine starts and the engine runs when the remote start/stop initiate contact closes the start input that is located on the GSC+. The GSC+ closes the remote start/stop initiate contact to the − Battery terminal. Also, the engine starts and the engine runs when the customer communication module (CCM) sends a remote start command. At this time, the GSC+ starts the engine. The engine runs normally until the remote start/stop initiate contact opens. Also, the engine runs normally until the customer communication module (CCM) sends a remote stop command. The engine enters a cooldown period. After the cooldown period, the engine is shut down. The GSC+ shows diagnostic codes on the upper display and on the fault indicators as the diagnostic code occurs. The