OPERATIONEaton 9315/9390/9395 Fixed Master Sync Control Installation and Operation Manual P-164000023 Rev 1 www.eaton.com/powerquality4-4Table 4‐1. Controls and IndicatorsItem Name Function and Description1 SYNCHRONIZED TO OWN BYPASS When illuminated, indicates that the non-master system is synchronized to its own bypass.2 SYNCHRONIZED TO MASTERSOURCEWhen illuminated, indicates the non-master system is in the non-master system mode and issynchronized to the master load bus.3 ON BYPASS When illuminated, indicates the non-master system is on bypass. The SYNCHRONIZED TO OWNBYPASS light should also be illuminated.4 LOAD SYNC ENABLELIT WHEN ENABLEDDEPRESS TO ENABLE-DISABLEEnables or disables the automatic fixed master sync control unit. Switch is illuminated whenload sync action is enabled.5 LAMP TEST Pressing the pushbutton illuminates all indicators on the Eaton Fixed Master Sync Control unitfor visual testing.4.4 Maintenance OperationsMaintenance should be scheduled on a periodic basis, recommended not to exceedone year. More frequent intervals are recommended if the equipment is subjected tohighly repetitive operations.D A N G E RThis UPS contains LETHAL VOLTAGES. All repairs and service should be performed by AUTHORIZEDSERVICE PERSONNEL ONLY. There are NO USER SERVICEABLE PARTS inside the UPS.Periodic inspections of the Eaton Fixed Master Sync Control should be made todetermine if components, wiring, and connections exhibit evidence of overheating ordamage.C A U T I O NRefer to the maintenance chapter in the applicable Eaton 9390 UPS or Power Xpert 9395 UPS Installation andOperation Manual listed in paragraph 1.3 on page 1-4 before beginning maintenance or repairs.
