AEG 2.33 2 user manual Alarm Error in configuration memory

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Alarm 74:

In a parallel system, with N+M configuration, where:

N:nr equipment to size the system according to the maximum permissible load.

M:nr redundant equipment in the system. It is equivalent to over sizing the UPS’s in the system, in order to continue supplying the maximum permissible load without overloading it. Usually, this value is fixed to “1”. The alarm is displayed when the load exceeds the maximum permissible load by N equipment. In this condition, the equipment will not be overloaded individually, meanwhile the load doesn’t exceed the maximum load of N+M. Example: Assuming that a parallel system of 2+1 equipment of 20 kVA (N=2, M=1).

If the load of the system is lower than 40 kVA.

Any overload alarm is displayed (if it is not exceeded the individual overload for phase for each equipment).

If the load of the system is higher than 40 kVA. The alarm 74 “Loss of redundancy” is displayed.

If the load of the system is higher than 60 kVA. Beside the alarm 74 “Loss of redundancy”, there will also be (as a minimum, among others), alarm 2 “Inverter overload” in all the equipment in the system.

Alarm 75:

This alarm can be displayed for two reasons:

Input contactor from the equipment faults (it doesn’t close properly). It is shown when the DC bus voltage is not kept at a certain level when closing the input contactor. Input contactor from the equipment fails (it doesn’t close properly). The system can retry the contactor test several times (see description of alarm 47).

Alarm 76:

After the first error in the parallel system communication, when one of the UPS’s has already been chosen as a master in the system, a second error or break in the communications has been detected by the slave equipment,

which will be blocked permanently (rectifier and inverter are shutdown, output voltage is not supplied to the output of the system), by displaying this alarm.

Alarm 77:

Error in configuration memory.

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Contents Protect 2.33 Contents Operation Maintenance, warranty and service Using this manual IntroductionSymbols and conventions used Safety and instructions For more information and helpQuality and standard guarantee Management declarationStandards Environmental protectionPresentation Views Views of the equipmentNot available for Protect 2.33 No -3 battery cabinet front view with front door closed Corresponding legends for the equipment views LCD Structure Structural schema Operating principleOperation with inverter not active Normal operationOperation with mains failure Operation in manual bypass Parallel operationThere are two operation modes possible Installation Important safety instructionsBattery safety instructions Cabinet access Bypass Input Output Set up and installation Unpacking and content checking Storage Transportation to siteLocation Connection To the mains connection, terminals X1 to Front view for parallel systemPage Connection of the output, terminals X6 to Page Interface relay contacts, connector Connection example between a UPS and two battery cabinetsCOM-interface RS232 and RS485, connector Connector DB9 X31Page EPO terminals Parallel BUS connectionParallel BUS Connection Start up Control before start up Start up procedureOperation Close Battery Switch Complete UPS shutdown LED indications control panel PCTransfer to maintenance bypass Emergency power off EPO operationBypass manual switch Maintenance Principle of operation Transfer to normal operation Close Battery Switch Control panel and display description Control panel partsTouch Screen Basic functions of keyboard from synopticControl panel parts Messages menus and classification in submenus MainMenu structure Screen description Main level screen menu Screen 0.0 Main ScreenUPS status control screen menu MainPage 3. ‘‘MEASURES level screen menu Page Page 4. ‘‘SETTINGS level screen menu Screen 3.0 Settings and its submenusModbus Screen Page Page 5. ‘‘ALARMS level screen menu UPS Rectifier blocks Alarm list displayed in the LCD panel Alarm Page Page Alarm Page Page Page Page Alarm Error in configuration memory 6. ‘‘DATA Logger level screen menu Screen 5.0 Data logger Page Maintenance, warranty and service Basic maintenance guideBattery fuses BatteriesCapacitors Warranty conditionsCooling Fan Annexes Static Bypass Type External battery cabinet Dimensions & Weight External Battery CabinetSafety Instructions To provide forPage Page Page Operating Instructions 8000032013 BAL, EN

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