After the Normal-to-Emergency time delay, the ATS is signaled to transfer the load to the emergency source. When the utility source is restored, the Emergency-to-Normal time delay starts. When the Emergency-to-Normal time delay expires, the load is transferred to the utility. The engine start contacts on the ATS close to signal the generator set to start, and remain closed while the generator set is running.
The RDC2 controller can be set to automatically run the generator set at the same time and day every week or every other week. Exercising the generator set every week or every two weeks is required in order 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. Note: With the RDT and RSB transfer switches, 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. An unloaded cycle 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 factory-default exercise setting. The Unloaded Cycle exercise runs the engine for 20 minutes in the cycle shown in Figure and described below. D Runs 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. Figure Unloaded Exercise Cycle. During the unloaded cycle exercise, the controller monitors the following data.
The controller display indicates an unloaded exercise run during the diagnostics, unless a fault is detected as described below. D ATS connection. D Battery voltage. Battery voltage is checked before exercise to verify engine starting capability. Battery voltage provides a measurement of battery health. If the controller detects low battery voltage, low battery or low charging battery is displayed and the exercise does not start.
D Coolant level check. The coolant level is checked. D Communication integrity tests. D Engine speed. Engine speed is measured at low speed and full speed.
An overspeed or underspeed condition will result in a fault condition and shutdown. Operating the generator at full speed allows the RDC2 controller to check the output power for correct voltage, frequency, and stability.
When the engine is running at full speed, the controller verifies that the voltage and frequency are within acceptable limits. A fault message is displayed if the voltage or frequency is out of range.
D Oil pressure. Oil pressure is verified to ensure proper lubrication of critical engine components. Pressure is monitored at both low and full speeds. If the oil pressure is low, low oil pressure is displayed and the generator set shuts down. The unloaded full speed exercise runs the generator set at full speed for 20 minutes without transferring the load. To set an unloaded full speed exercise, follow the procedure in Figure and select Exercise Mode: Unloaded Full. A loaded exercise starts the generator set, ramps up to full speed, and then transfers the electrical load from the utility source to the generator set.
The load is transferred back to the utility source before the generator set shuts down. Note: With a loaded exercise, power to the building is lost for up to 10 seconds during load transfer. To set a loaded exercise, follow the procedure in Section 2. For a loaded exercise with a transfer switch other than a Kohlerr Model RXT, program the exercise at the transfer switch controller.
Refer to the transfer switch operation manual for instructions. The following advanced diagnostic operation applies to RDC2 controllers with firmware versions 5.
If the generator set shuts down on a fault during an exercise, the controller will try to restart the engine. If the engine starts, the generator set will run at full speed for two minutes and then stop. The event history will show Advanced Diagnostic Active. The exercise schedule is maintained.
If the engine does not start, the shutdown message will be displayed. Correct the fault condition and reset the fault as described in Section 2. If the utility power is lost during an unloaded exercise, the ATS transfers to the emergency source, the exercise is ended and the control remains in the AUTO mode.
If the utility power is lost during a loaded exercise, the exercise is ended. The generator set continues to run and supply power to the load for the duration of the utility power outage. When Utility power is restored, the ATS will re-transfer to the utility source through normal timing sequences.
When power is connected to the controller, you will be prompted to set the date, time, and exercise schedule. At power--up, the date is displayed with the year flashing. Use the up or down arrow key to step to the current year.
Press Select button to save the year and move to the month. Use the arrow and select buttons to set the month and the day. The time is displayed with the hour flashing. Use the up or down arrow key to step to the current hour and am or pm setting. If pm is displayed and you need to change it to am, use the down arrow button to step down in time until the correct hour and am are displayed. Press the Select button to save the hour and move to minutes.
Use the up or down arrow button to change the minutes. Press Select to save the time and move to the next screen. Next Exercise is displayed. Use the up, down, and select buttons to set the exercise time and date. Be sure to set a time and date in the future. Press Select. The controller exits the exercise menu. The generator set must be in automatic mode for the exercise to run as scheduled. The exercise will run every 7 days at the same time, starting on the date set.
To change the exerciser to run every other week or on a different day and time, use the following procedure. Set the date and time on the controller before setting the exercise schedule. Set the exerciser to automatically run the generator set for 20 minutes every week or every two weeks.
Follow the procedure below and see the flowchart in Figure to set the exercise time and date, mode, and frequency. Press the Select button to go to the main menu. See Figure Press the down arrow button to step to the Genset System menu. Press the Select button to enter the Genset system menu. Use the down arrow button to step to the next Exercise menu. Press the Select button. The setting flashes to show that it can be changed.
For example, the hour flashes to show that the hour can be changed. Press the UP or Down arrow buttons to change the setting. Press the Select button to save the setting and move to the next. For example, save the hour setting and move to minutes. Repeat steps 5 through 8 to change the next item on the line until the desired settings are displayed. Press Select to save after all settings have been selected.
Settings will stop flashing. If the generator set is connected to a Kohlerr Model RXT transfer switch, the exercise can be changed to a loaded exercise. Set the Exercise Mode to loaded full speed, unloaded full speed, or unloaded cycle as shown in Figure Set the exercise frequency weekly or every two weeks. Weekly exercises are recommended. Press the down arrow button to step to the Return menu.
Press the Select button to return to the main menu. After a scheduled exercise run, the next exercise time and date will be updated automatically based on the Exercise Frequency setting. Other transfer switches: For a loaded exercise with a transfer switch other than a Kohlerr Model RXT, program the exercise at the transfer switch controller.
Figure Procedure to Set the Exerciser. Welcome to ManualMachine. We have sent a verification link to to complete your registration. Log In Sign Up. Forgot password? Enter your email address and check your inbox. Please check your email for further instructions. Enter a new password. Controller Identification Record the controller description from the generator set operation manual, spec sheet, or sales invoice.
Controller Description. Generator Set Identification Numbers Record the product identification numbers from the generator set nameplate s. Engine Identification Record the product identification information from the engine nameplate.
Manufacturer Model Designation Serial Number. Table of Contents Product Identification Information. DANGER Danger indicates the presence of a hazard that will cause severe personal injury, death , or substantial property damage. NOTICE Notice communicates installation, operation, or maintenance information that is safety related but not hazard related. Battery acid cleanup. Battery short circuits. Do not smoke or permit flames or sparks near fuels or the fuel system.
Servicing the fuel system. A flash fire can cause severe injury or death. Combustible materials. A fire can cause severe injury or death.
Can cause severe nausea, fainting, or death. The exhaust system must be leakproof and routinely inspected. Carbon monoxide poisoning symptoms include but are not limited to the following: D Light-headedness, dizziness D Physical fatigue, weakness in joints and muscles D Sleepiness, mental fatigue, inability to concentrate or speak clearly, blurred vision D Stomachache, vomiting, nausea If experiencing any of these symptoms and carbon monoxide poisoning is possible, seek fresh air immediately and remain active.
Use extreme care when handling, storing, and using fuels. Can cause hearing loss. Will cause severe injury or death. Disconnect all power sources before opening the enclosure. Moving parts. Can cause severe injury or blindness.
Do not work on the generator set until it cools. Servicing the alternator. Nameplate Figure 2 shows a typical generator set nameplate.
GM Figure 2 Nameplate, Typical. List of Related Literature Figure 3 identifies related literature available for the generator sets covered in this manual. D Call toll free in the US and Canada Oil check dipstick 2. Oil fill location on valve cover 3. See cooling system detail 4. Exhaust outlet 5. Enclosure locking tool shipping location only 6.
Spark plugs 7. EPR electronic fuel pressure regulator 8. Engine ECM 9. Fuel inlet 1 in. NPT Oil cooler adapter model 30RCLH only Lube oil filter Customer load lead access Customer connection access panel Line circuit breaker Generator set master control buttons on RDC2 controller Nameplate location.
RDC2 controller Fan fuses Cooling air inlet remove this panel to access coolant drain Access to coolant fill Air-fuel mixer Throttle body Air cleaner Battery Oil Drain Coolant drain Oil cooler model 30RCLH only Fans qty.
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Mira Pixel. Englefield Valencia Elite. From kohlerpower. D Powerful Performance Exclusive Powerboostt technology provides excellent starting power. From fingerlakesgenerators. Now also available in 3 phase. In just 10 seconds, … From kohlerpower. Do not connect the wiring to the transfer switch at this time. Identify the generator sets as generator 1 and generator 2. Use the decals provided to label Generator 1 and Generator 2. Note: Be careful to keep track of generator 1 and generator 2 during the installation and connection procedures.
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From nationwidegenerators. Safety decals affixed to the equipment in prominent places alert the operator or service technician to potential hazards and explain how to act safely. The decals are shown throughout this publication to improve operator Product Identification Information Generator Set Identification Numbers Record the product identification numbers from the generator set nameplate s. It runs as quietly as an air conditioner at 67 dba.
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