Eaton RTC-100 Instruction Manual

Contents

18Instruction Booklet IB 70-8698 Instruction Manual for the Eaton RTC-100Automatic Transfer Switch Controllereaton Corporation www.eaton.comEffective December 20095.4 RTC-100 Replacement warninghigh voltages are present in and around transfer switChequipment. before attempting to replaCe any Component,disConneCt the line power from the equipment being serviCedby opening and loCKing out, if possible, the neXt highestdisConneCt deviCe. failure to follow this proCedure CouldCause severe personal inJury and/or death.always turn the utility power off and turn the generatorControl seleCtor switCh to the “off” position beforeattempting to replaCe any Components.Step 1: Turn the Generator Start select to “OFF” before attempt-ing to replace the RTC-100 controller. Ensure all sources ofpower are removed.Step 2: Disconnect the J1, J2, J3, J4, J5, J6, J7, and J9 plugs fromthe controllerStep 3: Disconnect the customer wires connected to J7, J8, and J9.Step 4: Remove the four (4) screws located at the corners of thecontroller that secure it to the power panel. Remove thecontroller. (The center support will have to be removed also.)Step 5: Align the new controller with the mounting holes. Securethe new controller board using the existing hardware.Tighten the screws.Step 6: Connect the J1, J2, J3, J4, J5, J6, J7, and J9 plugs to theiroriginal receptacles.Step 7: Reconnect the customer wires to J7, J8, and J9.Step 8: Reapply power to the transfer switch.Step 9: Place the generator control selector switch in the “AUTO”position after the controller has been replaced. (TheGenerator may start but will shut down within 5 minutes.)Test the system for proper functionality.Section 5: Maintenance, troubleshooting,and replacement5.1 Maintenance and CareThe RTC-100 is designed to be a self-contained and maintenance-free unit. The printed circuit board is conformally coated at the fac-tory. The RTC-100 is intended for service by factory-trained person-nel only.5.2 RTC-100 Controller TroubleshootingThe Troubleshooting Guide (Table 3) is intended for service personnelto identify whether a problem being observed is external or internalto the unit. For assistance with this determination, contact EatonElectrical. If a problem is identified to be internal, the unit should bereturned to the factory for replacement.Table 3. Troubleshooting Guide.symptom probable Cause possible solution(s)“Util Avail” and “Gen Avail”LEDs are not lit.Power is deficient or absent. Verify that power is con-nected at J1 – J4 and that itis within specifications.. RTC-100 is malfunctioning Replace the unit.Utility source or Generatorsource is not available whenit should be.Voltage is not withinsetpoint values.Verify voltage withmultimeter. Check theprogrammed setpoint values.5.3 Level of RepairThis manual is written with the assumption that only ATS trouble-shooting will be performed. If the cause of malfunction is tracedto an RTC-100, the unit should be replaced with a new unit. Themalfunctioning unit should then be returned to Eaton Electrical forfactory repairs.

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