SEAL-O-RING 8M4438 - Caterpillar

Normal mode is used in order to monitor the generator set. Normal mode is also used to control the generator set. The GSC+ controls the engine according to the information which is received from the operator and the information that is received from the engine sensors. The GSC+ performs the following functions in normal mode:
Engine starting function
Monitors the important GSC+ conditions
Shows the important GSC+ conditions to the operator
Fault detection
Engine stoppingThe operator can identify normal mode by observing the display area. When the GSC+ is in normal mode, all shutdown indicators are OFF. The fault alarm indicator is OFF and "SERV" is NOT SHOWING on the upper display. When the GSC+ is in normal mode, the engine is able to start or the engine is able to run.Note: The optional Customer Communication Module (CCM) can remotely control certain generator set functions. This remote control can only occur when the engine control switch (ECS) is in the AUTO position. See Systems Operation, "System Communication Module (Customer)"for more information.Engine Starting Sequence
The GSC+ receives an engine start signal. The signal will be one of three.
The operator turns the ECS to the Manual Start position.
The ECS is in the AUTO position and the remote initiate contacts (IC) close.
The ECS is in the AUTO position and a start command is sent by the optional Customer Communication Module (CCM).
The GSC+ checks the system before beginning the cranking sequence. The GSC+ checks that no system faults are present. The GSC+ checks that all previous shutdown faults have been reset. Note that shutdown faults are removed by turning the ECS to OFF/RESETposition. The GSC+ also checks that the engine is not already running. If the engine is equipped with prelube, the GSC+ checks the status of the prelube. If the prelube is not complete, the GSC+ will not crank the engine.
The GSC+ starts the crank sequence.
On MUI engines, the GSC+ activates the starting motor relay (SMR) and the run relay (RR).
On PEEC engines, the GSC+ activates the starting motor relay (SMR) and the run relay (RR). Once activated, the run relay (RR), removes the shutdown signal from the PEEC.
On EUI engines, the GSC+ activates the starting motor relay (SMR), the run relay (RR) and the electronic governor relay (EGR).
The GSC+ activates the fuel control relay (FCR).
The GSC+ cycle cranks the engine until the cycle crank time reaches the setpoint (P017) for total crank time or until the engine starts. The factory default of the setpoint (P017) is 10 seconds of crank time and 10 seconds of rest time.
While the starting motor is cranking, the GSC+ shows the status of the relays on the relay status indicators of the lower display.
ETR fuel systems: K4 (SMR), K5 (RR), K7 (FCR)
ETS fuel systems: K4 (SMR), K5 (RR)
On EUI engines, K1 (EGR) is also shown
The GSC+ deactivates the starting motor relay (SMR) and the GSC+ activates the crank termination relay (CTR) when the engine speed reaches the setpoint P011 for crank terminate speed. The factory default of setpoint P011 is 400