# Closing-command priority selection Canonical URL: https://eloragrid.ai/symbols/closing-command-priority-selection Publisher: Elora Grid Updated: 2026-11-03 Lookup label: CPS Drawing use: Schematic Reference families: Manufacturer Representation: Functional block Installation focus: switchgear Input: Competing close requests Output: Selected command source Resolves simultaneous local and remote closing requests using the defined control authority. ## In plain English ### What this block does Resolves simultaneous local and remote closing requests using the defined control authority. ### A simple example In a switchgear bus-coupler panel, a close request is checked against position, mechanism readiness and the selected live-bus or dead-bus conditions before the closing circuit is enabled. For this reference, the drawing identifies “Competing close requests” at the input and “Selected command source” at the output. Priority must follow the project control philosophy. ### What the drawings help you do Start at the named input: Competing close requests. Identify its source device or document and the state represented on the drawing. Follow the named output: Selected command source. Cross-reference its destination and separate the command from confirmation that the equipment responded. ### Terms - Input: Competing close requests - Output: Selected command source - Application reference: An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections. Concept diagram: Competing close requests → CPS → Selected command source A reading guide. The entry's original illustration and input/output facts describe this application. - [Masterclad medium-voltage switchgear: circuit-breaker section interlocks](https://productinfo.se.com/masterclad_mv_switchgear_ib/6055-30-masterclad-15kv-mv-switchgear-ib/English/6055-30%20Masterclad%20MV%20Switchgear%20Indoor%20%28bookmap%29_DD00646805.xml/%24/Section6-CircuitBreakerSectionInter-58DD6EC7) ## What it represents Resolves simultaneous local and remote closing requests using the defined control authority. A closing circuit combines an operator or automatic request with the conditions that allow the breaker to close. The closing coil releases stored mechanism energy where that construction is used; it is different from the spring-charging motor. In a switchgear bus-coupler panel, a close request is checked against position, mechanism readiness and the selected live-bus or dead-bus conditions before the closing circuit is enabled. For this reference, the drawing identifies “Competing close requests” at the input and “Selected command source” at the output. Priority must follow the project control philosophy. Follow request, permission and final coil output as separate signals. A permissive diagram must say which conditions block closing and what happens if a feedback signal becomes unavailable. 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. ## How to read it - Start at the named input: Competing close requests. Identify its source device or document and the state represented on the drawing. - Follow the named output: Selected command source. Cross-reference its destination and separate the command from confirmation that the equipment responded. - Priority must follow the project control philosophy. - Follow request, permission and final coil output as separate signals. A permissive diagram must say which conditions block closing and what happens if a feedback signal becomes unavailable. ## Information to show or reference - Label the source and connection reference for competing close requests. - Identify the destination and defined state of selected command source. - Record the equipment or control-document revision supporting this functional block. - Check this application limit in the project design: Priority must follow the project control philosophy. ## Important distinction Priority must follow the project control philosophy. 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 - Representation: Functional block - Installation focus: Switchgear - Input / boundary: Competing close requests - Output / connection: Selected command source - Lookup label: CPS is a library lookup label, not a standard device designation. ## Public references - [Masterclad medium-voltage switchgear: circuit-breaker section interlocks](https://productinfo.se.com/masterclad_mv_switchgear_ib/6055-30-masterclad-15kv-mv-switchgear-ib/English/6055-30%20Masterclad%20MV%20Switchgear%20Indoor%20%28bookmap%29_DD00646805.xml/%24/Section6-CircuitBreakerSectionInter-58DD6EC7) — Schneider Electric. Public technical context for breaker closing controls. Breaker control, mechanism, position contacts, racking interlocks and test interfaces. The application text and educational graphic are independently authored; the publisher does not certify this representation. ## Graphic scope Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.