AEG PV.500-MH manual Interfaces, Communication Interface

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Protect PV.500-MH Operating Instructions

7 Interfaces

PV power stations are usually monitored from a central location. Alongside the PV cells, the inverter is a key component of a power station, which is why various communication interfaces are availa- ble as standard.

These include relay contacts and optocouplers, as well as various serial interfaces with protocols for integration into higher-level monitoring systems.

To facilitate PV power station monitoring, AEG also offers relevant additional components that are adapted for use with inverters and PV generators. This enables the client to monitor an entire PV power station from a central location easily and reliably.

7.1Communication Interface

The photovoltaic inverter is equipped with a central communication unit, a "MultiCom CCC interface".

As well as performing various other functions, this unit facilitates communication between PV inverters and higher-level monitoring systems.

A special system of central monitoring via the Internet can be real- ised using AEG monitoring components such as "PV.LoG". The connection between the inverter and PV-LoG has been optimally adapted for monitoring and management purposes and is estab- lished via the Modbus protocol. If you have any further questions, please contact your supplier.

7.1.1General

Two separate potential-free serial interfaces are provided as standard for the purpose of establishing communication connec- tions. One interface – port X2 – is assigned the AEG-specific pro- tocol CBSER and is used both locally and remotely for correspond- ing service tools. The other one – port X5 – supports the Modbus protocol and enables the PV inverter to be integrated into higher- level monitoring and control systems with ease. This port can be switched over from RS232 to RS485.

An external CAN bus provides a further connection option, which can be used for monitoring via a remote panel.

The MultiCom CCC interface can be found on the pivot inside the DC/AC cabinet (item A29.1; see the assembly diagram).

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Contents Protect PV.500-MH Operating InstructionsAEG Power Solutions GmbH Table of Contents Monitoring Systems, Messages and Faults System FunctionInterfaces Graphical Display and Operation Unit General Information Information on How to Use these InstructionsWarranty ValidityObligations of the Equipment Operator Target GroupsExplanations of Target Groups HandlingSkilled Personnel Skills and Training Storing Instructions Obligations of skilled personnelExplanation of Symbols and Safety Instructions Explanation of SymbolsSymbol Meaning Hazard Symbols Used Safety InstructionsSignal Words Used Symbol Meaning for skilled personnelSigns Containing Orders for Personal Protective Equipment Emergency Procedure e.g. in the Event of a Fire Safety AwarenessAbbreviations Particular Dangers associated with Photovoltaic Systems Thin-film cellsLightning protection System stop switch Safety Signs and Warning Notices on the EquipmentSafety and Protection Devices for the Equipment Protective CoversLockable Equipment Doors GuardResidual Hazards Electrical Hazards Water in electrical equipment Risks Due to Moving PartsFire-Related Risks Risk of injury due to rotating fansRisks from Maintenance and Repair Work Risks due to Loss of ControlProduct Details Product DescriptionImportant information about equipment documenta- tion Appropriate Use Dimensions and ViewsSafety Inappropriate UseStandards, Directives and CE Mark NameplateTechnology Operating Elements System Description Individual OperationOFF Status System FunctionDescription of Sequence Control Waiting for Feed Conditions StatusOperation Status Waiting StatusSequence Control During the Course of the Day Fault StatusNight Status Early morningLater in the evening DayEvening NightPower limit value for shutdown, delay time for shutdown Inverter stack switch-on timePermissible voltage dip after switching on the stack Sequence Control ParametersDescription of Fan Control General Fan Control, Cabinet FanCabinet Fan Control Parameters Fan Control, Inverter Stack FanParameters of Inverter Stack Fan Control Igbt temperature limit value for switching off the fanIgbt temperature limit Insulation Monitoring and Earthing of PV Cells GeneralProtect PV.500-MH Operating Instructions General Maintenance modeOperation with Thin-Film Solar Cells Sequence controlInsulation Monitoring Parameters Delay for shutdown of K21 in night operationMinimum time in maintenance mode MPP TrackerMonitoring Systems, Messages and Faults Table of Faults Temperature monitoring systemsCan I/O monitoring systems Fault/Message Unit Monitoring Systems Fault/Message DC voltage monitoring systems Fault/Message Interfaces Communication InterfaceCommunication data port 2 Technical Data MultiCom CCC hardware data assembly A29.1Communication data port 1 Communication data port 3Connections Configuration jumpersStructure of the MultiCom CCC Interface ButtonDescription of serial interfaces Port 2 X5 RS485 pin assignment default Shield connection of the RS485 bus lineController Area Network can at ConfigurationPort 2 X5 RS232 pin assignment Port 3 X4 can pin assignmentConfiguration Preparations Setting the terminal programProtect PV.500MH Operating Instructions Configuring the Modbus Protocol Data protocol configurationConfiguring Modbus Data Transmission Modbus/JBus data transmission configurationStructure of the COM Server internally wired to A93 COM Server GeneralNetwork Connection Installation of the COM Server Network Integration Configuration Configuration of the Virtual COM PortRemote Signalling Technical dataStructure Following default signals are used for remote signalling Graphical Display and Operation Unit DOUKeyboard Operation SignallingAcoustic signal generator LEDsPossible symbol keys and their function Start-upMenu Structure Menu Tree Main MenuOperating Display Operating display Normal operationExamples of possible displays Example of operating displaySolar radiation is too low, the inverter is in standby mode Monthly data t = day 1 31 for the last 12 months Example of yearly overview Menu Status/Measured ValuesBlocking Menu Inverter exampleService Fault HistorySettings Information