Mitsubishi Elevator Door Control Board DOR-120C, GPS-III Series Door Operator PCB, 220V AC Door Motor Drive Panel with Encoder Feedback, Original Replacement Part for Mitsubishi Lift Door System

The core controller of the door operator system, the DOR-120C, is the original door operator control board for Mitsubishi GPS-III (GPS-3) series elevators. As the "brain" of the door system, it receives door opening and closing commands from the main control board, drives the door operator motor to achieve smooth door opening and closing, and precisely controls door speed, position, and torque.

High-precision closed-loop control incorporates door operator encoder signals to monitor door position and speed in real time, adjusting output power in a closed loop to ensure smooth, shock-free door opening and closing. Even with load fluctuations of ±15%, the door closing positioning accuracy remains at ±2ms, preventing people from being pinched and impacted.

Multiple safety protection logics integrate overcurrent, overload, overvoltage, and overheat protection; it immediately reverses to prevent pinching when encountering resistance/obstacles; in case of door operator malfunction, it reports a fault code to the main control board, prohibiting elevator operation and eliminating safety hazards.

Signal interaction and timing management interface with the elevator main control board (such as KCD-70X) processes door opening/closing commands, door arrival signals, and door lock safety circuit signals; achieving a standard timing sequence of "door open → door in position → door close → door lock," ensuring synchronization with the overall machine's operating logic.

Easy adaptation and maintenance: Designed specifically for the Mitsubishi GPS-III series, compatible with various door operator motors; plug-and-play, replacement requires no modification; supports fault self-diagnosis, facilitating rapid problem location during maintenance and reducing downtime.

Elevator PCB Board - FAQ

Q1: How do I identify the correct replacement elevator PCB board?
To identify a replacement elevator PCB board, check the original part number, hardware revision, board markings, and elevator controller model. Clear photos of both sides of the PCB can help distinguish different versions.

Q2: Can elevator PCB boards with similar part numbers be interchangeable?
Not necessarily. Elevator PCB boards with similar part numbers may differ in hardware revisions, firmware, connector layouts, or communication protocols. Compatibility must be verified against the existing elevator system.

Q3: Does a replacement elevator PCB board require programming?
Some replacement PCB boards require firmware configuration, parameter settings, or system-specific programming. Others may already contain the required software. The correct procedure depends on the PCB model and its role in the elevator control system.

Q4: Can a faulty elevator PCB board be replaced without changing the complete control system?
In some cases, an individual PCB can be replaced if the replacement is compatible with the existing controller, firmware, wiring, and connected components. A qualified technician should confirm the fault before deciding on replacement.

Q5: What information should I provide when sourcing a replacement elevator PCB board?
Please provide the original PCB part number, hardware revision, elevator model, clear board photos, and required quantity. SULAB can help review these details and check available replacement options.