{"schemaVersion":1,"slug":"microgrid-mode-change-rejection-indication","name":"Microgrid mode-change rejection indication","kind":"symbol","abbreviation":"MMRI","aliases":["Microgrid operating-mode controls","microgrids Microgrid operating-mode controls","microgrids","Microgrids","Mode request and failed prerequisites","Mode-change rejection"],"category":"microgrid-systems","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Reports that a requested operating-mode change failed its defined entry conditions.","description":["Reports that a requested operating-mode change failed its defined entry conditions. A microgrid operating-mode function coordinates how local sources and loads relate to the utility connection. The selected mode, the measured electrical condition and the actual switching configuration can differ during a transition.","In a microgrid serving a switchroom and industrial loads, the controller can move between grid-connected and islanded operating states only through its defined transition logic. Each state needs identifiable source roles and feedback. For this reference, the drawing identifies “Mode request and failed prerequisites” at the input and “Mode-change rejection” at the output. The rejected condition should remain identifiable.","Show the requested mode, entry conditions, completion feedback and failure indication. These functional blocks explain control responsibilities and do not specify a ready-to-use operating sequence or grid-connection approval. The functional block is an independent explanation of this named application. Equipment-specific ratings, terminal connections and operating conditions must be established in the project documentation."],"readingNotes":["Start at the named input: Mode request and failed prerequisites. Identify its source device or document and the state represented on the drawing.","Follow the named output: Mode-change rejection. Cross-reference its destination and separate the command from confirmation that the equipment responded.","The rejected condition should remain identifiable.","Show the requested mode, entry conditions, completion feedback and failure indication. These functional blocks explain control responsibilities and do not specify a ready-to-use operating sequence or grid-connection approval."],"drawingChecklist":["Label the source and connection reference for mode request and failed prerequisites.","Identify the destination and defined state of mode-change rejection.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: The rejected condition should remain identifiable."],"distinction":"The rejected condition should remain identifiable. This reference describes the named application; it does not establish a new IEC graphical symbol, an ANSI device-function number or an exact manufacturer connection diagram.","facts":[{"label":"Representation","value":"Functional block"},{"label":"Installation focus","value":"Microgrids"},{"label":"Input / boundary","value":"Mode request and failed prerequisites"},{"label":"Output / connection","value":"Mode-change rejection"},{"label":"Lookup label","value":"MMRI is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-mg-modes","relevance":"Public technical context for microgrid operating-mode controls. Grid-connected and island modes, transitions, topology and authority. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["microgrid-controller","grid-forming-inverter","microgrid-transition-abort-interface"],"artwork":"pi26-microgrid-mode-change-rejection-indication","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"microgrids","family":"microgrid-modes","input":"Mode request and failed prerequisites","output":"Mode-change rejection"},"plainEnglish":{"title":"What this block does","introduction":"Reports that a requested operating-mode change failed its defined entry conditions.","example":"In a microgrid serving a switchroom and industrial loads, the controller can move between grid-connected and islanded operating states only through its defined transition logic. Each state needs identifiable source roles and feedback. For this reference, the drawing identifies “Mode request and failed prerequisites” at the input and “Mode-change rejection” at the output. The rejected condition should remain identifiable.","drawings":"Start at the named input: Mode request and failed prerequisites. Identify its source device or document and the state represented on the drawing. Follow the named output: Mode-change rejection. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Mode request and failed prerequisites"},{"name":"Output","meaning":"Mode-change rejection"},{"name":"Application reference","meaning":"An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections."}],"diagram":"flow","steps":["Mode request and failed prerequisites","MMRI","Mode-change rejection"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"Microgrid operating modes and transitions management","url":"https://productinfo.se.com/emol_functional_specifications/doca0371_emol_functionalspecifications/EN/DOCA0371_EMOL_Functional_Specifications_DD00894746.xml/%24/EMOL_OperatingModesandTransitionsManagement_DD00895904"}],"profileId":"power-installation-microgrid-modes"},"url":"https://eloragrid.ai/symbols/microgrid-mode-change-rejection-indication","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/microgrid-mode-change-rejection-indication.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pi26-mg-modes","publisher":"Schneider Electric","title":"Microgrid operating modes and transitions management","url":"https://productinfo.se.com/emol_functional_specifications/doca0371_emol_functionalspecifications/EN/DOCA0371_EMOL_Functional_Specifications_DD00894746.xml/%24/EMOL_OperatingModesandTransitionsManagement_DD00895904","scope":"Grid-connected and island modes, transitions, topology and authority.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for microgrid operating-mode controls. Grid-connected and island modes, transitions, topology and authority. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}