Kohler 8/10/12RESV Exercise, Automatic Operation with Other Transfer Switches, Automatic Stop

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2.3.7Automatic Operation with Other Transfer Switches

If a transfer switch other than the Model RXT (such as a Kohler Model RDT or RSB) is used, the engine start contacts from the ATS must be connected to engine start leads 3 and 4 on the generator set.

The controller must be in AUTO mode to respond to remote start/stop signals from an ATS or remote switch. Press the AUTO button to put the controller into automatic mode.

Automatic Start

The engine start contacts on the ATS close to signal the generator set to start, and remain closed while the generator set is running.

Automatic Stop

The engine start contacts on the ATS open to signal the generator set to stop.

2.4 Exercise

The RDC2 and DC2 controllers can be set to automatically run the generator set at the same time and day each week. Exercising the generator set weekly or every two weeks is required to keep the engine and alternator in good operating condition.

Three exercise modes are available: unloaded cycle, unloaded full speed, and loaded full speed. See Sections 2.4.2 through 2.4.4 for information about the exercise modes. A loaded exercise can be set at the RDC2 controller only if a Model RXT transfer switch is connected.

Note: With transfer switches other than the Model RXT, it is possible to have two exercise settings (one unloaded exercise set at the generator set controller, and another exercise set at the ATS controller). If the exercise times overlap, the ATS exercise setting takes priority.

If a transfer switch other than the Model RXT is used, refer to the instructions provided with the transfer switch to set a loaded exercise at the ATS, if desired.

2.4.1Setting the Exerciser

When power is applied to the RDC2 controller (that is, when the battery is connected), you will be prompted to set the date and time, and then to set the exerciser.

The first setting will flash. Press the Up and Down arrow buttons to change the setting. Press Select to save the setting and move on to the next. See Section 3.5 for

more detailed instructions to change settings on the RDC2. See Section 3.6 for more detailed instructions to set the exerciser or change the exercise settings.

The DC2 controller does not prompt you to set the exerciser. See Section 4.5 for instructions to set the exerciser on the DC2.

2.4.2Unloaded Cycle Exercise with Complete System Diagnostics

An unloaded exercise runs the generator set without signalling the transfer switch to transfer the electrical load from the utility source to the generator set. The Unloaded Cycle exercise with diagnostics is the recommended exercise mode and is the default exercise setting.

The Unloaded Cycle exercise runs the engine for 20 minutes in the cycle shown in Figure 2-1 and described below.

DRuns at reduced speed for 10 minutes to warm up and exercise the engine.

D Ramps up and runs at full speed for 3 minutes. Engine diagnostics are performed during this full-speed portion of the cycle, which provides the best test of engine and alternator power backup capability. Diagnostic tests at full speed can identify potential problems with the power output and alert the operator before an emergency event.

D Ramps down and runs at reduced speed for 5 minutes to cool down the engine before shutting down automatically.

Speed, RPM

 

3 min.

 

 

1 min.

1 min.

Engine

10 min.

 

5 min.

 

 

 

Engine

Full-Speed

Cooldown

 

Exercise

Diagnostics

 

Figure 2-1Unloaded Exercise Cycle

22 Section 2 Generator Set Operation

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Contents RDC2 TP-6880 10/14aGenerator Set Identification Numbers Accessory Number Accessory DescriptionProduct Identification Information Controller IdentificationTable of Contents Troubleshooting Scheduled MaintenanceDC2 Controller Operation Accidental Starting Safety Precautions and InstructionsBattery Accidental starting Can cause severe injury or deathCarbon monoxide Can Cause Engine Backfire/Flash FireExhaust System Fire Can cause severe injury or deathFuel System Hazardous Noise Hazardous voltage Will cause severe injury or deathHeavy Equipment Hot PartsIntroduction Transfer Switch LiteratureAccessory Literature List of Related LiteratureGenerator Set Application NameplateEmission Information Emission Compliance PeriodService Assistance Service Assistance TP-6880 10/14 Descriptions and Service Views RDC2 Controller Features DC2 Controller Features Programmable Interface Module PIM AccessoriesCarburetor Heater Load Control Module LCMService Views 12143Service View Prestart Checklist Generator Set OperationGenerator Set Operation TP-6880 10/14 Exercising the Generator Set Generator Set OperationUnloaded Cycle Exercise with Complete System Diagnostics Automatic Operation with Other Transfer SwitchesSetting the Exerciser ExerciseUnloaded Full-Speed Exercise Power Failure During Exercise CycleSystem Diagnostics Loaded Full-Speed Exercise with RXT onlyResetting the Controller after a Fault Shutdown FaultsATS Communication Errors ShutdownsFault Message Shutdown SD Condition Check 3Controller Fault Messages Fault Shutdown SD Condition CheckGenerator Enclosure Thermostat Generator Set Operation TP-6880 10/14 Controls and Indicators RDC2 Generator Set/ Transfer Switch ControllerRDC2 Controller Operation Button Function Controller Keypad LED IndicatorsButton LED OperationLCD Display Active AlertChanging Settings Controller PowerBattery Charging Procedure to Change SettingsChanging Settings on the RDC2 Controller 7Changing SettingsChanging the Exercise Settings Setting the ExerciserSetting the Exerciser at Controller Power-up Procedure to Set the Exerciser8Procedure to Set the Exerciser on the RDC2 Controller RDC2 Controller Menus Main MenuOverview Menu Engine Metering MenuGenerator Metering Menu Voltage CalibrationGenerator Set Information Menu Genset Run Time MenuGenset System Menu Setting the ExerciserAdjusting the Display Contrast Voltage Regulator VR Voltage AdjATS Status Menu Screens on this page do not appearATS Configuration Menu Changing ATS Configuration SettingsDate and Time Menu Networking Information MenusNetworking Status Submenu DhcpPassword Networking Configuration Submenu OnCue Plus PasswordDhcp Submenu 21Network Configuration Submenu Rbus Information 22RBUS Information SubmenuRemote Devices Submenu From FigureProgrammable Interface Module PIM Status Menu Load Control Module LCM or Load Shed Kit Menus 25Load Control Module LCM or Load Shed Kit Status MenuProcedure to View Event History Event LogRDC2 Controller Operation TP-6880 10/14 DC2 Generator Set/ Transfer Switch Controller DC2 Controller OperationLED Indication Controller KeypadButton Button Function Description5Status Displays, Generator Running Exerciser Reset Exercise ModesMaintenance Timer OnCue Plus PasswordDC2 Controller Operation TP-6880 10/14 Scheduled Maintenance Scheduled Maintenance Service Schedule Engine Oil Recommendation Oil Change ProcedureLubrication System Low Oil Pressure ShutdownReplace the oil filter Reset the maintenance timer on the controllerDrain the oil Fill with oilModel Resv RDC2 Resetting the Maintenance TimerSpark Plugs Model Resvl DC2Air Cleaner, 8RESV/RESVL Models Air Cleaner ServicePaper Element Service Air Cleaner, 10/12RESV/RESVL Models Cooling SystemHazardous noise Can cause hearing loss EZ-273000-J Storage Procedure Scheduled Maintenance TP-6880 10/14 Introduction TroubleshootingFault Messages USB PortTroubleshooting Problem Possible Cause Corrective ActionAppendix a Abbreviations AnsiLCB Page TP-6880 10/14
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