862914A 2 Mercruiser PUMP ASSEMBLY, Sea Water, Complete

Illustration 1 g06060491
MECP II (left) and MGCP II (right)
Digital Control Unit (DCU 210E) (1) - The DCU is the main user interface. The DCU displays engine and generator data, such as oil pressure and coolant temperature, on the main screen. The DCU also shows alarms in the alarm list and can be configured from the menu. For information on navigation of the DCU 210E, refer to System Operations, M0070550, "Display Screens".Stop Button (2) - Stops the engine. Depending on the configuration, the button may have to be held down until the engine fully stops.Start Button (3) - Starts the engine. Depending on the configuration, the button may have to be held down until the engine reaches running speed.Home Button (4) - A short press of the home button shows the main screen (gauges). A long press of this button shows the menu with settings and help options.Alarm List Button (5) - Shows or hides the alarm list. If the Alarm list is already on the screen and the buzzer is active, this button will silence the buzzer instead.Throttle (6) - Controls engine speed. When the ECS is set to "Local" mode, this throttle is enabled. The genset engine will go to rated speed, then it can be adjusted by this throttle. The propulsion engine will remain at the current speed until the local throttle is turned to within 50 rpm of the current speed, then the engine will follow the local throttle. For the MGCP, press the left arrow to decrease engine speed and the right arrow to increase engine speed. For the MECP II, rotate the knob counterclockwise to decrease the engine speed. Rotate the knob clockwise to increase engine speed.Emergency Stop Button (E-Stop) (7) - This button immediately stops the engine and removes power from the ECM.Engine Control Switch (ECS) (8) - The engine control switch (ECS) has three positions. The "OFF" position is on the left. This position turns off the key switch to the DCU and ECM. The "Local" position is located in the middle. In this position, only the local control panel can start or stop the engine. The local throttle is enabled. The "Remote" position is on the right. This position disables local starting or stopping of the engine. Remote control is enabled. Local E-Stop and crank override still work in this position.
Illustration 2 g06060553
Inside the control panel
Relays (9) - Refer to the following list and Illustration 3 for the relays used in the control panel.
Illustration 3 g06060569
The "Shutdown" relay (9A) removes power from the engine.
The "Local Acknowledge" relays (9B) and (9C) are only active while the "Local Acknowledge" button is pressed. The "Local Acknowledge" button is the first soft button when the alarm list is shown. 5K25 (9C) is for MGCP II only.
The "Energize to Run (ETR)" relay (9D) is only active while the DCU is starting the engine.
"Expansion Tank Water Level (HTC)" relay (9E)
The "In Gear" relay (9F) is for the MECP II only.Crank Override Switch (10) - Bypasses all interlocks except the crank inhibit switch and local E-Stop. Also, the engine is cranked immediately.Shutdown Override Switch (11) - Overrides all shutdown events except for events configured to be never overridden such as "Overspeed".Crank Inhibit Switch (12) - Prevents all crank activity including the crank override switch. All electronics are still powered.Starter Selection Switch (Optional) (13) - If two starters are installed on the engine, the starter selector switch will determine which one is activated during crank.Other Breakers (14) - These breakers isolate downstream circuits such as the ECM and auxiliary systems. Refer to the following list and Illustration 4 for the breakers.
Illustration 4 g06060614
Cabinet Power (Control Panel) breaker (14A)
Engine Power (ECM, CDVR) breaker (14B)
External Power (Remote Start/Stop, Throttle) breaker (14C)
Auxiliary System Power (Prelube, Heater Control) breaker (14D) Panel Isolation Breaker (Secondary) (15) - Isolates the panel from the secondary power source of the ship.Panel Isolation Breaker (Primary) (16) - Isolates the panel from the primary power source of the ship.
Illustration 5 g06060662
Back of door of the MECP II (left) and MGCP II (right)
Speed Controller (17) - The speed controller is used in the MECP II onlyRelays (Door) (18) - Refer to the following list and Illustration 6 for the door relays. These relays are for the MGCP II only.
Illustration 6 g06060676
Local Mode relay (18A)
Remote Digital Throttle Raise relay (18B)
Remote Digital Throttle Lower relay (18C) SDU (19) - Refer to Illustration 7.
Illustration 7 g06060706SDU Status LEDs (20) - The statuses for the different LEDs are seen in Table 1.
Table 1
SDU Status LEDs
Status Indicator LED Description
Power Green, steady Power is OK
Green, flashing Voltage is low
Running Green The engine is running (1)
Overspeed Red The SDU has detected an engine overspeed.
Green, flashing The "Overspeed Test" mode is active
Shutdown Red The SDU is in "Shutdown" mode
Shutdown Override Green The SDU Shutdown Override Switch