Multiquip operation manual DCA-500SSK Control Panel

Page 33

The definitions below describe the controls and functions of the DCA-500SSK " Control Panel " (Figure 8).

1.Pilot Lamp – Indicates that the generator is working properly.

2.Panel Light – Normally used in dark areas or at night time. When activated, panel lights will illuminate.When lit this light will make it easier to read the meters and gauges. When the generator is not in use be sure to turn the panel light switch to the OFF position.

3.Frequency Meter – Indicates the output frequency in hertz (Hz). Normally 60 Hz ±1 Hz .

4.AC Ammeter – Indicates the amount of current the load is drawing from the generator.

5.AC Voltmeter – Indicates the single phase output voltage present at the UVW terminals. .

6.Ammeter Change-Over Switch – This switch allows the AC ammeter to indicate the current flowing to the load connected to any phase of the output terminals, or to be switched off.

7.Voltmeter Change-Over Switch – This switch allows the AC voltmeter to indicate phase to phase voltage between any two phases of the output terminals or to be switched off

8.Panel Light Switch – When activated, this switch will turn on the luminate the control panel.

9.Voltage Regulator Control – Allows manual adjustment of the generator’s output voltage

10.Main Circuit Breaker – This three-pole, 1400 amp main breaker is provided to protect the UVW voltage output terminals from overload.

DCA-500SSK — CONTROL PANEL

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

Also the MPEC will shutdown the generator 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 MPEC module.

A.

Off/Manual/Auto Switch – This switch controls the

 

running of the generator. If this switch is left in the "OFF"

 

position, the generator 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 the

 

generator will monitor the

AC line output from the

 

building's power source. The generator will engage when

 

commercial power falls below a preset level.

B.

Low Oil Pressure – Indicates the engine pressure

 

has fallen below 15 psi. The oil pressure is detected

 

using variable resistive values from the oil pressure

 

sending unit. This is considered a major fault and will

 

shut down the generator.

 

C.

High Coolant Temperature

Indicates the engine

 

temperature has exceeded 215°F. The engine

 

temperature is detected using variable resistive values

 

from the temperature sending unit. This is considered

 

a major fault and will shut down the generator.

D. Overcrank Shutdown – Indicates the unit has

11.MPEC – Microprocessor Engine Control Module – (MPEC) has a vertical row of status LED's (Figure 9), that when lit, indicate that an engine malfunction (fault), has been detected. When a fault has been detected the MPEC will evaluate the fault and if the fault is major will shutdown the generator.

Figure 9. MPEC Module

 

attempted to be started a pre- programmed number of

 

times, and has failed to start. The number of cycles

 

and duration are programmable.Typical programmable

 

start settings is 3 cycles with a 10 second duration.

 

This is considered a major fault and will shut down

 

the generator.

E.

Overspeed Shutdown – Indicates that the engine is

 

running at an unsafe speed.This is considered a major

 

fault.

F.

Engine Running – Indicates that engine is running at

During cranking cycle , The MPEC will attempt to crank the engine for 10 seconds before disengaging.

a safe operating speed.

DCA-500SSK — PARTS AND OPERATION MANUAL (STD)— REV. #1 (04/14/01) — PAGE 33

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Contents MQ Power Model DCA-500SSK Whisperwatttm Generator Page Heres HOW to GET Help Table of Contents Parts Ordering Procedures Earn Extra Discounts when You order by FAXRules for Safe Operation General SafetyRadiator Loading and Unloading Crane BatteryRules for Safe Operation DCA-500SSK -TOWING Towing Safety PrecautionsExplanation of Chart DCA-500SSK TRAILER-SAFETY GuidelinesDCA-500SSK -TRAILER-SPECIFICATIONS Electrical DCA-500SSK -TRAILER-SPECIFICATIONSElectric Brake Adjustment BrakesElectric Brakes Hydraulic/Air/Surge Brakes DCA-500SSK -TRAILER Safety GuidelinesTires/Wheels/Lug Nuts Tire Wear/InflationSuspension DCA-500SSK -TRAILER Safety Guidelines Torque Ft.-LbsLug Nut Torque Requirements DCA-500SSK -TRAILER-WIRING Diagram Symptom Possible Cause Solution DCA-500SSK -TRAILER BrakestroubleshootingMachine Safety Decals DCA-500SSK Operation and Safety DecalsDCA-500SSK Operation and Safety Decals DCA-500SSK Operation and Safety Decals DCA-500SSK Operation and Safety Decals DCA-500SSK Operation and Safety Decals DCA-500SSK -- Notes DCA-500SSK Specifications DCA-500SSK General Information Major Components DCA-500SSK Major ComponentsPage Dimensions DCA-500SSK Dimensions TOP and SideDCA-500SSK Dimensions Front and Rear Control Panel DCA-500SSK Control PanelPilot Lamp Indicates that the generator is working properly DCA-500SSK Control PanelEngine Operating Panel DCA-500SSK Engine Operating PanelFuel Level Gauge Indicates amount of diesel fuel remaining DCA-500SSK Outputterminal Output Terminal Panel Location Over Current Relay Maximum Amps Output Terminal Panel Available VoltagesModel Rated Maximum AmpsAC Voltmeter Reading the Output Terminal GaugesPhase, 240 Volt Single Phase, 240 VoltSingle Phase, 139 Volt Voltage Change-over BoardPhase, 480 Volt Single Phase, 480 VoltSingle Phase, 277 Volt DCA-500SSK OutputterminalOutdoor Installation DCA-500SSK InstallationTypical Generator Grounding Application DCA-500SSK InstallationGeneral Inspection Prior to Operation DCA-500SSK PRE-SETUPRange Type OilAir Cleaner Cleaning the RadiatorOperation in Freezing Weather Fan Belt TensionBattery Cable Installation WiringPiping and Hose Connection Single Phase Load Three Phase LoadDCA-500SSK Load Application Before Starting Generator and Control Panel Before Starting EngineSet the battery ON/OFF switch to the on position Voltage Meter Volts Engine Speed Switch DCA-500SSK Generator START-UP Procedure Auto DCA-500SSK Generator Shutdown Procedure Engine ShutdownEmergency Stop Page DCA-500SSK Maintenance Check Electric Heater If equipped Changing OilReplacing fuel filter Cleaning breather element GreasingGenerator Storage Inspection / Maintenance DCA-500SSK-GENERATORWIRING Diagram DCA-500SSK-ENGINEWIRING Diagram DCA-500SSK -TROUBLESHOOTING Engine Engine Troubleshooting DCA-500SSK -TROUBLESHOOTING EngineGenerator Troubleshooting DCA-500SSK -TROUBLESHOOTING GENERATOR/ENGINEMpec Troubleshooting DCA-500SSK -TROUBLESHOOTING MpecItems Found In the Items Number Column Explanation of Code in Remarks ColumnDCA-500SSK Suggested Spare Parts DCA-500SSK w/SA6D170AE-1 Komatsu EngineQty Description DCA-500SSK Generator Assy Part Name QTY DCA-500SSK Generator Assy DCA-500SSK Generator Assy DCA-500SSK Control BOX Assy Part Name DCA-500SSK Control BOX Assy APS Unit DCA-500SSK Engine & Radiator Assy Part Name QTY Remarks DCA-500SSK Engine & Radiator Assy 0131710060 DCA-500SSK Engine Operating Panel Assy Support LEG DCA-500SSK Engine Operating Panel Assy Starter Switch DCA-500SSK Outputterminal Assy Output Terminal DCA-500SSK Outputterminal Assy Cover DCA-500SSK Battery Assy Battery DCA-500SSK Muffler Assy Muffler DCA-500SSK Fueltank Assy Fuel Tank Enclosure #1 Assy DCA-500SSK Enclosure #1 AssyDCA-500SSK Enclosure #1 Assy DCA-500SSK Enclosure #1 Assy HEX.NUT Enclosure #2 Assy DCA-500SSK Enclosure #2 AssyRear Frame DCA-500SSK Enclosure #2 Assy DCA-500SSK Enclosure #2 Assy Enclosure #3 Assy DCA-500SSK Enclosure #3 AssyDCA-500SSK Enclosure #3 Assy DCA-500SSK Enclosure #3 Assy 7525151504 DCA-500SSK Rubber Seal Assy 0228901640 DCA-500SSK Nameplate and Decals Control BOX Group DCA-500SSK Nameplate and Decals Part Name QTY Remarks Freight Policy Terms and Conditions of Sale PartsPage Mail mq@multiquip.com WWW multiquip.com