Frequently Asked Questions — Elevator Controllers & PCBs
What functions does an elevator controller manage?
A modern elevator controller manages: call registration from landing call buttons and car operating panels; floor-by-floor dispatching logic (simplex, duplex, or group collective control); door open/close commands and timing; speed and direction signals to the VFD; safety circuit monitoring (overspeed governor, buffer, pit switch, door contacts); emergency operations (ARD/rescue drive, fire service mode, earthquake mode); and diagnostic fault logging with error codes accessible via service tool or remote interface.
What is the difference between simplex and duplex control?
Simplex control manages a single elevator in a shaft and optimizes calls for that one car. Duplex control coordinates two elevators sharing a common group of landing calls, reducing average waiting times by intelligently assigning calls to the nearer or less-loaded car. Group control extends this logic to three or more elevators. Turkish suppliers on elevator.tr offer controllers supporting all three configurations, with parameter-selectable collective control algorithms.
Can an elevator controller be replaced without changing the motor or drive?
Yes — controller replacement is a common modernization strategy that upgrades the intelligence of the elevator without disturbing mechanical components. The new controller must be programmed with the shaft height, number of floors, and door operator specifications, and correctly interfaced with the existing VFD via the appropriate communication protocol. Turkish suppliers provide commissioning support and remote diagnostics tools for retrofit installations.
What remote monitoring capabilities do modern elevator controllers offer?
Contemporary controllers typically include an Ethernet port or built-in GSM/LTE modem for remote fault notification, real-time status monitoring, door cycle counting, and trip logging. Data can be transmitted to a cloud-based fleet management platform or integrated with a building's BMS via BACnet or Modbus TCP. Remote monitoring reduces response times and enables predictive maintenance scheduling based on actual usage data.