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Logic gates · Elevator control · Safety interlock

Elevator door and motion interlock logic

This elevator door and motion interlock diagram turns a few basic operating conditions into two outputs. RUNENABLE requires a car call, closed and locked doors, no overload, normal inspection status, and a condition away from a floor. DOOROPENENABLE allows an opening command only when the car is at a floor and the same inhibit conditions are clear.

유형 논리 게이트 다이어그램표준 IEEE Std 91/91a-1991엔진 schematex-logic업데이트됨 2026. 9. 22.
Door and motion interlock
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요청 내용

“Draw gate-level elevator interlock logic with car call, door closed, door locked, overload, inspection mode, and at-floor inputs, producing RUN_ENABLE and DOOR_OPEN_ENABLE outputs.”

그렇다면Add a door obstruction input.Add a maintenance lockout input.
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01

Both closed and locked door signals are required for movement.

02

Overload and inspection mode inhibit normal operation.

03

An at-floor signal prevents a normal run command.

04

Door opening requires the car to be at a floor and not overloaded.

Use this for a digital logic or controls exercise. Actual elevator safety chains use redundant, monitored, safety-rated circuits beyond this conceptual gate diagram.

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자주 묻는 질문

자주 묻는 질문

Why need both door closed and locked?

They represent distinct conditions; a closed door is not necessarily mechanically locked.

What does inspection mode do?

It inhibits normal automatic motion in this simplified model.

Is overload normally a gate input?

An overload condition commonly prevents normal operation, though implementation is equipment-specific.