AEG 8000012364 BAL operating instructions Function of the Inverter

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"UniVert 2" inverter

3 Function of the Inverter

For technical data or unit settings, refer to the Technical Data Sheet in chapter 8.

3.1DC Input

The inverter is operated with 48 V (or 60 V) DC voltage. The input voltage is fuse-protected outside the INV. For details, refer to the technical data.

An integrated softstart device limits the making current of the inverter to a value smaller than the rated input current. The input voltage is continuously monitored. (See chapter 3.3.)

3.2AC Output

The INV output voltage is regulated to 230 V 50 H (see chapter 3.9) and monitored (see chapter 3.5). With an output voltage present and the INV in operation, the green LED lights up "UO OK".

3.3DC Input Monitoring System

If a value falls below the "DC undervoltage, switch-off" threshold, the INV is immediately switched off. If the input voltage rises above the acknowledgement value, the INV is switched back on. If the monitoring system is triggered, the red "UI<" LED lights up.

It the "DC overvoltage, switch-off" threshold is exceeded, the red "UI>" LED lights up and the INV is immediately switched off. If the value falls below the "DC overvoltage, switch-off" acknowledgement value, acknowledgement is made after a delay of 15 seconds.

3.4Temperature Monitoring System

Overtemperature is signalled by the red "ϑ>" LED if the heat sink temperature exceeds critical values. The faulty unit switches off after 40 seconds. Acknowledgement is made when it has cooled down. Overtemperature can result from e.g. high ambient temperature, constant overload of the INV or from fan failure.

3.5Output Voltage Monitoring System

The INV output voltage is regulated to 230 V 50 Hz (see chapter 3.9) and monitored. With an output voltage present and the INV in operation, the green "UO OK" LED lights up. When the output voltage drops below 90% of the rated value, e.g. due to overload, short circuit or the triggering of a miniature circuit-breaker, the INV switches off after 2.5 seconds. The unit is not automatically switched back on.

3.6Monitoring of Functions

After connecting the input voltage, the self-test of the microcontroller control system is carried out automatically.

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8000012364 BAL, en

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Contents Operating Instructions UniVert 2 inverter and SBS option Duty to Provide Information WarrantyValidity HandlingCopyright AbbreviationsHotline Table of Contents Dimensional Drawing Maintenance TroubleshootingTechnical Data Accident Prevention Regulations Safety InstructionsImportant Instructions and Explanations Qualified Personnel Application Safety AwarenessDirectives LiabilitySystem Description General InformationIndividual INV operation Function of the SystemParallel INV operation Individual or parallel operation with SBSParallel INV operation Description of the INV Block diagram of the inverterPrinciple of Operation of the INV, Electrical SBS Description of the SBSPrinciple of Operation of the SBS, Electrical Function of the Inverter DIL Switch ON/OFF SwitchCan Bus Interfaces X6 S2.1 S2.2 S2.3Switches S2.7 and S2.8 Number of redundant INVs Switches S2.4, S2.5 and S2.6 Own Address INVINVs Settings must be the same on all INVs and the SBS S2.4 S2.5 S2.6 AddressDisplay Colour Operating status Signalling, Displays and Remote SignalsOperating Statuses Switchback AttemptsFunction of the SBS optional AC Mains Input Reset ButtonAC Busbar AC Mains Monitoring SystemS3.1 S3.2 S3.3 S3.7 S3.8 INVs Operating modes Assignment of the signal terminalsSwitchover without gap Switchover with gap Connecting the Loads / DC / Mains InstallationStart-Up ConnectionDisconnection Maintenance For systems with SBS additionally TroubleshootingOutput Voltage Deviation General Data INV Technical DataOvertemperature ϑ FaultCollective fault OperationGeneral Data SBS With safe isolation at UO ≤ 60 V DC UniVert 2 inverter Electrical Data At 24 Type E-number G110 E230/10,9/2rfg-CFp2,5 3000000263 Type E-number E230 E230/115/2-VFp26,5-8 3000000646 Inverter dimensions type 1.5 and 3.3 kVA Dimensional DrawingInverter dimensions type 2.5 kVA SBS dimensions
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