424808 Volvo.Penta Charge air cooler

Illustration 1 g00593349
Display Area Of Generator Set Control (GSC)
(1) Dedicated shutdown indicators. (2) Fault shutdown indicator. (3) Fault alarm indicator. (4) Upper display. (5) Lower display. (6) Keypad.
The main component of the EMCP II is the generator set control (GSC). The GSC is designed to operate when the GSC is powered by a 24 DCV battery system or a 32 DCV battery system. The GSC monitors many of the functions of the generator set. The GSC has the following functions and features.
The GSC controls the starting of the engine and the GSC also controls the stopping of the engine.
The GSC shows engine conditions and generator output information on two displays. The displays also show diagnostic codes and GSC programming information.
The GSC monitors the system for faults. If a fault occurs, the GSC performs a controlled fault shutdown, or the GSC provides a fault alarm annunciation. The GSC uses indicators and displays to describe the fault to the operator.
The GSC contains programmable features for certain applications or requirements from customers.Fault Indicators
The eight fault indicators are used to show that a fault is present. The fault indicators describe the fault. The fault indicators are divided into three groups: fault alarm indicator (3), fault shutdown indicator (2) and dedicated shutdown indicators (1). The yellow fault alarm indicator (3) FLASHES when the GSC detects an alarm fault. The alarm fault does not cause the engine status to change. The engine will continue to run if the the alarm fault had occurred when the engine was running. The engine will be able to start. Fault alarm indicator (3) is accompanied by a diagnostic code that is shown on upper display (4) when the alarm codes key is pressed. The red fault shutdown indicator (2) FLASHES when the GSC detects a fault that is a shutdown fault. The engine is shut down if the engine is running. The engine is not allowed to start. Fault shutdown indicator (2) is accompanied by a diagnostic code that is immediately shown on upper display (4). The red dedicated shutdown indicators (1) represent the following shutdown faults: low oil pressure, emergency stop, high water temperature, engine overspeed, low coolant level and engine overcrank. When the GSC detects a fault in one of these areas, the dedicated fault shutdown indicator that corresponds to the fault FLASHES. If the engine is running, the engine is shut down. The engine is not allowed to start. There are no diagnostic codes that are associated with the dedicated fault shutdown indicators because each indicator has a descriptive label. Many of the dedicated shutdown faults depend on certain setpoints in the GSC. See Systems Operation, "Engine/Generator Programming OP5". To restart the engine after a shutdown, see Systems Operation, "Shutdown Mode". The conditions that are required for each dedicated fault are in the following list. The results of each dedicated fault are in the following list.Low Oil Pressure - The engine oil pressure drops below the setpoints for low oil pressure shutdown that are programmed into the GSC. There are two low oil pressure setpoints. One setpoint is used when the engine is at idle speed. One setpoint is used when the engine is at rated speed. When this fault occurs, the low oil pressure indicator FLASHES. The engine is shut down. The engine is not allowed to start until the fault is corrected.Emergency Stop - The operator presses the emergency stop push button (ESPB) on the instrument panel. When this condition occurs, the indicator for emergency stop FLASHES. The engine is shut down. The engine is not allowed to start until the condition is corrected.High Water Temperature - The engine coolant temperature rises above the setpoint for high water temperature shutdown that is programmed into the GSC. When this fault occurs, the high water temperature indicator FLASHES. The engine is shut down. The engine is not allowed to start until the fault is corrected. Engine Overspeed - The engine speed exceeds the setpoint for engine overspeed that is programmed into the GSC. When this fault occurs, the engine overspeed indicator FLASHES. The engine is shut down. The engine is not allowed to start until the fault is corrected.Low Coolant Level - The engine coolant level drops below the probe of the optional coolant loss sensor. When this fault occurs, the indicator for the engine coolant level FLASHES. The engine is shut down. The engine is not allowed to start until the fault is corrected.Overcrank - The engine does not start within the setpoint for total cycle crank time that is programmed into the GSC. When this fault occurs, the overcrank indicator FLASHES. The engine is not allowed to start until the fault is corrected. Note: The GSC can be programmed to override the shutdown for the following conditions: low oil pressure, high water temperature and low coolant level. When the shutdown faults are overridden then the faults are treated as alarm faults. The corresponding dedicated fault shutdown indicator is ON CONTINUOUSLY instead of flashing. The engine continues to run instead of shutting down. The dedicated fault shutdown indicator that is ON CONTINUOUSLY means that the setpoint for shutdown has been exceeded. However, the GSC is programmed to override the shutdown fault and the GSC treats the fault as an alarm fault. The factory programs the GSC to treat low oil pressure, high water temperature and low coolant level as shutdowns. The operator must make a decision in order to override these shutdown faults.Display
Illustration 2 g00593349
Display Area Of Generator Set Control (GSC)
(1) Dedicated shutdown indicators. (2) Fault shutdown indicator. (3) Fault alarm indicator. (4) Upper display. (5) Lower display. (6) Keypad.
The upper display (4) and lower display (5) of the GSC provide information about the generator set. Upper display (4) shows AC voltage, current and frequency of one phase of the generator output. Each phase can be viewed one at a time by pushing the phase select key. Upper display (4) is also used to show the various diagnostic codes for system faults. See Systems Operation, "Fault