Kohler 8/10/12RESVL manual Exercising the Generator Set, Generator Set Operation

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2.2 Exercising the Generator Set

Operate the generator set without load once each week for 20 minutes. See Section 2.4 for information about loaded and unloaded exercise modes. For instructions to set the exerciser, see:

DSection 3.6 for the RDC2 controller

DSection 4.5 for the DC2 controller

2.3 Generator Set Operation

2.3.1Local Starting and Stopping

Start: Press the RUN button to immediately start the generator set.

Stop: Press the OFF button. The engine stops.

Run the generator set with no load for at least 2 minutes to ensure adequate engine cooldown.

2.3.2Automatic Starting and Stopping

An automatic transfer switch monitors the utility power and signals the generator set to start when utility power is lost. The ATS then transfers the load to the generator set.

When utility power is restored, the transfer switch transfers the load back to utility, runs the generator set with no load to cool down the engine, and then stops the generator set.

2.3.3Remote Starting and Stopping

A remote switch connected to terminals 3 and 4 can be used to start and stop the generator set. Close the switch to start and run the generator set. Open the switch to stop the generator set.

Run the generator set with no load for at least 2 minutes to ensure adequate engine cooldown.

2.3.4Engine Start Crank Cycle

The controller attempts to start the generator set three times (three crank cycles, 15 seconds crank and 15 seconds off). If the generator set does not start in three attempts, the system shuts down on an overcrank fault. See Section 2.5.

Cranking 1, 2, and 3 are displayed during the crank cycle. Pressing the OFF button during the crank cycle stops the cranking. No other buttons are acknowledged during the crank cycle.

2.3.5Engine Cooldown

The engine cooldown time delay allows the engine to run after the loads have been removed.

The engine cooldown time delay is set to 5 minutes. The engine stops before the cooldown time delay expires if the temperature drops below the cooled-down temperature level, or if the temperature rises above the high limit during the cooldown cycle.

If a transfer switch other than the Model RXT is used, an additional engine cooldown time delay may be programmed on the transfer switch. To allow the smart engine cooldown on the RDC2/DC2 controller to operate most efficiently, set the cooldown time on the transfer switch controller to zero or the minimum time allowed. Refer to the instructions provided with the transfer switch for more information.

2.3.6Automatic Operation with Model RXT Transfer Switch

The Model RXT transfer switch connects to the RDC2/DC2 controller through the ATS interface board on the transfer switch. Also see the Model RXT Transfer Switch Operation/Installation Manual for more information about transfer switch operation.

The controller must be in AUTO mode for automatic transfer switch operation.

Automatic Start

The RDC2/DC2 controller receives utility source voltage sensing data from the Model RXT transfer switch.

1.If the utility source voltage falls below an acceptable level, the controller starts the engine start time delay.

2.If the utility source is not restored before the time delay expires, the generator set starts.

3.After the Normal-to-Emergency time delay, the ATS is signaled to transfer the load to the emergency source.

Automatic Stop with Engine Cooldown

1.When the utility source is restored, the Emergency-to-Normal time delay starts.

2.When the Emergency-to-Normal time delay expires, the load is transferred to the utility.

3.The generator set runs through the engine cooldown cycle and then stops.

TP-6880 10/14

Section 2 Generator Set Operation 21

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Contents TP-6880 10/14a RDC2Product Identification Information Accessory Number Accessory DescriptionGenerator Set Identification Numbers Controller IdentificationTable of Contents Scheduled Maintenance TroubleshootingDC2 Controller Operation Battery Safety Precautions and InstructionsAccidental Starting Accidental starting Can cause severe injury or deathExhaust System Engine Backfire/Flash FireCarbon monoxide Can Cause Fire Can cause severe injury or deathHazardous voltage Will cause severe injury or death Fuel System Hazardous NoiseHot Parts Heavy EquipmentAccessory Literature Transfer Switch LiteratureIntroduction List of Related LiteratureEmission Information NameplateGenerator Set Application Emission Compliance PeriodService Assistance Service Assistance TP-6880 10/14 Descriptions and Service Views RDC2 Controller Features DC2 Controller Features Carburetor Heater AccessoriesProgrammable Interface Module PIM Load Control Module LCM1214 Service Views3Service View Generator Set Operation Prestart ChecklistGenerator Set Operation TP-6880 10/14 Generator Set Operation Exercising the Generator SetSetting the Exerciser Automatic Operation with Other Transfer SwitchesUnloaded Cycle Exercise with Complete System Diagnostics ExerciseSystem Diagnostics Power Failure During Exercise CycleUnloaded Full-Speed Exercise Loaded Full-Speed Exercise with RXT onlyATS Communication Errors FaultsResetting the Controller after a Fault Shutdown ShutdownsFault Message Shutdown SD Condition Check Fault Shutdown SD Condition Check 3Controller Fault MessagesGenerator Enclosure Thermostat Generator Set Operation TP-6880 10/14 RDC2 Generator Set/ Transfer Switch Controller Controls and IndicatorsRDC2 Controller Operation Button Controller Keypad LED IndicatorsButton Function LED OperationActive Alert LCD DisplayBattery Charging Controller PowerChanging Settings Procedure to Change Settings7Changing Settings Changing Settings on the RDC2 ControllerSetting the Exerciser at Controller Power-up Setting the ExerciserChanging the Exercise Settings Procedure to Set the Exerciser8Procedure to Set the Exerciser on the RDC2 Controller Main Menu RDC2 Controller MenusEngine Metering Menu Overview MenuVoltage Calibration Generator Metering MenuGenset Run Time Menu Generator Set Information MenuAdjusting the Display Contrast Setting the ExerciserGenset System Menu Voltage Regulator VR Voltage AdjScreens on this page do not appear ATS Status MenuChanging ATS Configuration Settings ATS Configuration MenuNetworking Information Menus Date and Time MenuDhcp Networking Status SubmenuNetworking Configuration Submenu OnCue Plus Password PasswordDhcp Submenu 21Network Configuration Submenu 22RBUS Information Submenu Rbus InformationFrom Figure Remote Devices SubmenuProgrammable Interface Module PIM Status Menu 25Load Control Module LCM or Load Shed Kit Status Menu Load Control Module LCM or Load Shed Kit MenusEvent Log Procedure to View Event HistoryRDC2 Controller Operation TP-6880 10/14 DC2 Controller Operation DC2 Generator Set/ Transfer Switch ControllerButton Button Function Controller KeypadLED Indication Description5Status Displays, Generator Running Exercise Modes Exerciser ResetOnCue Plus Password Maintenance TimerDC2 Controller Operation TP-6880 10/14 Scheduled Maintenance Scheduled Maintenance Service Schedule Lubrication System Oil Change ProcedureEngine Oil Recommendation Low Oil Pressure ShutdownDrain the oil Reset the maintenance timer on the controllerReplace the oil filter Fill with oilSpark Plugs Resetting the Maintenance TimerModel Resv RDC2 Model Resvl DC2Air Cleaner Service Air Cleaner, 8RESV/RESVL ModelsPaper Element Service Cooling System Air Cleaner, 10/12RESV/RESVL ModelsHazardous noise Can cause hearing loss EZ-273000-J Storage Procedure Scheduled Maintenance TP-6880 10/14 Fault Messages TroubleshootingIntroduction USB PortProblem Possible Cause Corrective Action TroubleshootingAnsi Appendix a AbbreviationsLCB Page TP-6880 10/14
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