What action does the elevator controller take when there is a substantial change in load?

What action does the elevator controller take when there is a substantial change in load?

• A. It automatically adjusts the car up or down to keep the car floor level with the building floor.
• B. It stops immediately.
• C. It ignores the load change.
• D. It sounds an alarm.

Answer: (A)

When a substantial load change occurs, the elevator controller automatically relevels the car to keep the floor aligned with the building floor. It uses feedback from position sensors and load cues to determine if the car is out of level, then adjusts the drive so the car moves up or down just enough to reestablish proper leveling. This keeps the door opening aligned and ensures safe, smooth operation for passengers during loading and unloading. Stopping immediately, ignoring the load change, or sounding an alarm would not be normal responses to a weight shift. Immediate stops are reserved for safety faults or emergencies, ignoring the load change would lead to misleveling and unsafe door operation, and alarms indicate faults rather than routine leveling corrections.

When a substantial load change occurs, the elevator controller automatically relevels the car to keep the floor aligned with the building floor. It uses feedback from position sensors and load cues to determine if the car is out of level, then adjusts the drive so the car moves up or down just enough to reestablish proper leveling. This keeps the door opening aligned and ensures safe, smooth operation for passengers during loading and unloading.

Stopping immediately, ignoring the load change, or sounding an alarm would not be normal responses to a weight shift. Immediate stops are reserved for safety faults or emergencies, ignoring the load change would lead to misleveling and unsafe door operation, and alarms indicate faults rather than routine leveling corrections.