GENERATOR CONTROL PANEL

14.Auto On/Off Engine Controller (MPEC) — This controller has a vertical row of status LED’s (inset), that when lit, indicate that an engine malfunction (fault) has been detected. When a fault has been detected the engine controller will evaluate the fault and all major faults will shutdown the generator. During cranking cycle, The MPEC will attempt to crank the engine for 10 seconds before disengaging.

If the engine does not engage (start) by the third attempt, the engine will be shutdown by the engine controller’s Over Crank Protection mode. If the engine engages at a speed (RPM’s) that is not safe, the controller will

shutdown the engine by initializing the Over Speed Protection mode.

Also the engine controller will shut down the engine in the event of low oil pressure, high coolant temperature, low coolant level, and loss of magnetic pickup.These conditions can be observed by monitoring the LED status indicators on the front of the controller module.

MPEC Control Switch — This switch controls the running of the unit. If this switch is set to the OFF/RESET position, the unit will not run.When this switch is set to the manual position, the generator will start immediately.

If the generator is to be connected to a building’s AC power source via a transfer switch (isolation), place the switch in the AUTO position. In this position, should an outage occur, the automatic transfer switch (ATS) will start the generator automatically via the generator’s autostart contacts connected to the ATS’s start contacts. Please refer to your ATS installation manual for further instructions for the correct installation of the autostart contacts of the geerator to the ATS.

Low Oil Pressure — Indicates the engine pressure has fallen below a safe operating level. The oil pressure is detected using variable resistive values from the oil pressure sending unit. This is considered a major fault.

High Coolant Temperature — Indicates the engine temperature has exceeded a safe operating level. The engine temperature is detected using variable resistive values from the temperature sending unit. This is considered a major fault.

Overcrank Shutdown — Indicates the unit has attempted to start a pre programmed number of timesand has failed to start.The number of cycles and duration are programmable. It is preset at 3 cycles with a 10second duration. This is considered a major fault.

Overspeed Shutdown — Indicates the engine is running at an unsafe speed. This is considered a major fault.

Engine Running — Indicates that engine is running at a safe operating speed.

Located behind the generator control panel is the Generator Control Box. This box contains some of the necessary electronic components required to make the generator function.

The Control Box is equipped with the following major components:

OverCurrent Relay

Voltage Rectifi er (AVR)

Starter Relay

Current Transformer

Voltage ChangeOver Board

Three Phase Circuit Breaker

NOTICE

Remember the overcurrent relay monitors the current

flowing from the U,V, and W Output Terminal Lugs to the load.

In the event of a short circuit or over current condition, it will automatically trip the 2500 amp main breaker.

To restore power to the Output Terminal Panel, press the reset button on the overcurrent relay and place the main circuit breaker in the closed position (ON).

DCA800SSK2 60 HZ GENERATOR • OPERATION AND PARTS MANUAL — REV. #0 (09/03/09) — PAGE 19

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Multiquip DCA800SSK2 manual Owing from the U,V, and W Output Terminal Lugs to the load
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DCA800SSK2 specifications

The Multiquip DCA800SSK2 is a robust and versatile portable diesel generator, designed to meet the demands of a wide range of applications. With a powerful 800 kW (kilowatt) capacity, it is particularly suited for use in construction sites, events, and emergency backup power situations. This generator combines reliability, durability, and ease of use, making it a popular choice among contractors and rental companies.

One of the main features of the DCA800SSK2 is its advanced sound attenuation technology. This ensures that the generator operates quietly, minimizing noise pollution while maximizing performance. The enclosure is designed to reduce sound levels without compromising on the cooling requirements, which extends the overall lifespan of the generator. Users can expect noise levels well within acceptable limits for urban and residential areas.

The DCA800SSK2 is equipped with a state-of-the-art digital controller that offers enhanced monitoring and diagnostic capabilities. This intelligent control system enables users to track key performance metrics, such as voltage, frequency, and operating hours, all from a user-friendly interface. Furthermore, it includes automatic shutdown features for low oil pressure, high temperature, and overcurrent situations, providing an added layer of safety and preventing potential damage.

Fuel efficiency is another standout characteristic of the Multiquip DCA800SSK2. With a large fuel tank, it can operate for extended periods without frequent refueling, making it ideal for long-term use in remote areas where access to fuel may be limited. The generator's engine is engineered to provide optimal fuel consumption, ensuring that operators can maximize their running time while minimizing operational costs.

The DCA800SSK2 includes multiple outlets for electricity distribution, allowing users to connect various tools and equipment simultaneously. This versatility makes it suitable for a wide range of applications, from powering heavy machinery on construction sites to providing backup power for critical infrastructure.

Overall, the Multiquip DCA800SSK2 stands out in the market for its combination of power, efficiency, and advanced features. With its robust build quality, innovative technologies, and user-centric design, it is an excellent choice for anyone in need of a reliable portable generator. Whether for professional use or emergency situations, the DCA800SSK2 delivers outstanding performance and peace of mind.
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