Eaton Generator Owner's Manual

Also see for 10 kW Air-cooled: Owner's manual

17NOTE:The exerciser will only work in the AUTO mode and will not workunless this procedure is performed. The current date/time willneed to be reset every time the 12 volt battery is disconnectedand then reconnected, and/or when the fuse is removed.Low Speed Exercise17 and 20kW units will run at 2,400 rpm.Display Interface MenusThe LCD display is organized as detailed below:• The “Home” page, this page is the default page which will bedisplayed if no keys are pressed for 30 seconds. This pagenormally shows the current Status message and the currentdate and time. The highest priority active Alarm and/or Warningwill be automatically posted on this page as well as flashingthe backlight when such an event is detected. In the case ofmultiple Alarms or Warnings, only the first message will bedisplayed. To clear an Alarm or Warning, see the ProtectionSystems section - Clear Alarm.• The display backlight is normally off. If the user presses anykey, the backlight will come on automatically and remain on for30 seconds after the last key was pressed.• The “Main Menu” page will allow the user to navigate to all otherpages or sub-menus by using the Left/Right and Enter keys.This page can be accessed at any time with several presses ofthe dedicated Escape key. Each press of the Escape key takesyou back to the previous menu until the main menu is reached.This page displays the following options: HISTORY; STATUS;EDIT; AND DEBUG. (See the Appendix - "Menu System".)3.2 AUTOMATIC TRANSFER OPERATIONTo select automatic operation, do the following:1. Make sure the transfer switch main contacts are set to theirUTILITY position, i.e., loads connected to the utility powersource (Figure 3.1).2. Be sure that normal UTILITY power source voltage is avail-able to transfer switch terminal lugs N1 and N2 (Refer to theElectrical Data section).3. Set the generator’s AUTO/OFF/MANUAL switch to AUTO.4. Set the generator’s main circuit breaker to its ON (or CLOSED)position.With the preceding steps complete, the generator will start auto-matically when utility source voltage drops below a preset level.After the unit starts, loads are transferred to the standby powersource. Refer to the Sequence of Automatic Operation section.3.3 SEQUENCE OF AUTOMATIC OPERATION3.3.1 UTILITY FAILUREInitial Conditions: Generator in Auto, ready to run, load being sup-plied by utility source. When utility fails (below 60% of nominal),a 10 second (optionally programmable) line interrupt delay time isstarted. If the utility is still gone when the timer expires, the enginewill crank and start. Once started, a five (5) second engine warm-up timer will be initiated. When the warm-up timer expires, thecontrol will transfer the load to the generator. If the utility power isrestored (above 80% of nominal) at any time from the initiation ofthe engine start until the generator is ready to accept load (5 sec-ond warm-up time has not elapsed), the controller will completethe start cycle and run the generator through its normal cool downcycle; however, the load will remain on the utility source.3.3.2 CRANKINGThe system will control the cyclic cranking as follows: 16 secondcrank, seven (7) second rest, 16 second crank, seven (7) secondrest followed by three (3) additional cycles of seven (7) secondcranks followed by seven (7) second rests.Choke Operation1. The 990/999cc engines have an electric choke in the airbox that is automatically controlled by the electronic controlboard.2. The 530cc engines have an electric choke on the divider panelair inlet hose that is automatically controlled by the electroniccontrol board.3. The 410cc engines have a choke behind the air box that isautomatically controlled by the electronic control board.Failure to StartThis is defined as any of the following occurrences during crank-ing:1. Not reaching starter dropout within the specified crank cycle.Starter dropout is defined as four (4) cycles at 1,000 RPM.2. Reaching starter dropout, but then not reaching 2200 RPMwithin 15 seconds. In this case the control board will go intoa rest cycle for seven (7) seconds, then continue the rest ofthe crank cycle.During a rest cycle the start and fuel outputs are de-energized andthe magneto output is shorted to ground.Cranking ConditionsThe following notes apply during cranking cycle.1. Starter motor will not engage within five (5) seconds of theengine shutting down.2. The fuel output will not be energized with the starter.3. The starter and magneto outputs will be energized together.4. Once the starter is energized the control board will begin look-ing for engine rotation. If it does not see an RPM signal withinthree (3) seconds it will shut down and latch out on RPMsensor loss.Operation