FST-861 Elevator Integrated Controller 5.5-45KW
5.5-30KW Elevator Integrated Controller
,Parallel Communication Elevator VFD Drive
,Integrated Control Elevator Inverter
The FST-861 Elevator VFD Drive is an integrated controller and vector inverter that combines elevator control logic and variable frequency drive technology in a single compact unit. Featuring a parallel communication architecture, the FST-861 delivers direct point-to-point signal wiring for maximum reliability and easy troubleshooting — the preferred choice for high-rise applications above 32 floors.
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Villa Elevators
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Passenger Elevators
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Freight Elevators
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Industrial Elevators
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Subway Escalators
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Supermarket Elevators
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Lifting Motors
- Integrated control and drive in a compact structure with simple operation
- Parallel communication architecture: direct point-to-point wiring for every signal point, fast response, strong anti-interference capability, and easy on-site troubleshooting
- Ideal for high-rise buildings above 32 floors — handles large I/O counts with clear, reliable point-to-point signal transmission
- Strong environmental adaptability, achieving self-learning of weighing at any weight
- Multiple security protections, in accordance with GB/T7588.1/2020 standard
- Dual chip control for operation and holding brake function
- High-performance vector control — economical and easy to use, improving safety and stability
- Flexible wiring compatibility — suitable for both new installations and retrofit projects using traditional parallel wiring
- Flexible and rich modular value-added accessories
The FST-861 adopts a parallel communication architecture with direct point-to-point signal wiring, while the FST-860 adopts a serial bus communication architecture. Compared to the FST-820 (dedicated closed-loop vector) and FST-880 (open-loop vector), both the FST-860 and FST-861 are all-in-one integrated solutions combining control and drive in one unit — eliminating the need for a separate PLC and VFD — differing mainly in communication architecture.
| Application | Recommended Model | Reason |
|---|---|---|
| Buildings below 32 floors | FST-860 (Serial) | Serial bus wiring reduces the number of signal wires, saving wiring cost and cabinet space — ideal for mid/low-rise projects with moderate I/O points. Most commonly used for buildings under 32 floors. |
| Buildings above 32 floors | FST-861 (Parallel) | Parallel point-to-point wiring offers faster signal response, stronger anti-interference, and simpler fault diagnosis across large I/O counts — the mainstream choice for high-rise buildings above 32 floors. |
FST-861 (Parallel): Ideal for high-rise projects above 32 floors, or any project requiring direct wiring, fast commissioning without bus configuration, and clear point-to-point fault diagnosis.
FST-860 (Serial): Ideal for buildings below 32 floors, or projects with long-distance wiring and multi-node signal networking via bus communication.
Fully compliant with GB/T7588.1-2020 (elevator safety standards) with built-in overspeed protection, safety self-test, and forced speed change detection to prevent top/bottom impacts.
The integrated design reduces panel space by 40%, simplifies wiring, and lowers installation costs. Dual chip control ensures redundant safety for brake control and operation logic. With the parallel architecture, every input/output point corresponds to a dedicated terminal, so maintenance personnel can locate faults directly at the terminal level without bus diagnostics.
| Items | Specifications |
|---|---|
| Carrier frequency | 0.5k–16k (Hz); automatically adjusted according to load characteristics |
| Input frequency resolution | Digital setting: 0.01Hz; Analog setting: Maximum frequency *0.1% |
| Output frequency accuracy | Digital setting: Maximum frequency *±0.01%; Analog setting: Maximum frequency *±0.01% |
| Control mode | Open loop vector control (SVC) / Closed loop vector control (VC) / VF control |
| Starting torque | 0.5Hz/180% (SVC); 0Hz/200% (VC) |
| Speed range | 1:100 (SVC) | 1:1000 (VC) |
| Speed stability accuracy | ±0.5% (SVC) | ±0.05% (VC) |
| Overload capacity | 150% rated current for 60 seconds; 180% rated current for 1 second |
| Acceleration and deceleration curve | Linear or S-curve mode; four groups of acceleration/deceleration time and four groups of S-curve settings |
| Overhaul control | Can be specified by any multi-segment speed |
| Multi-speed operation | Up to 8 speed runs |
| Automatic Voltage Regulation (AVR) | Automatically keeps output voltage constant when grid voltage changes |
| Communication architecture | Parallel point-to-point signal wiring |
| Model No. | Power | Output Current | Input Voltage | Size (mm) | Installation Size (mm) | G.W |
|---|---|---|---|---|---|---|
| FST-861-5R5GT4 | 5.5KW | 13A | 380V | 200*276*140 | 147*267 | 5.12KG |
| FST-861-7R5GT4 | 7.5KW | 18A | 380V | 225*350*185 | 150*335 | 6.54KG |
| FST-861-11GT4 | 11KW | 27A | 380V | 225*350*185 | 150*335 | 6.54KG |
| FST-861-15GT4 | 15KW | 33A | 380V | 225*350*185 | 150*335 | 6.54KG |
FST-861 integrated elevator controller combines control logic and VFD in one compact unit. Parallel point-to-point wiring ensures fast response, strong anti-interference, and easy fault diagnosis. Ideal for high-rise buildings above 32 floors. Compliant with GB/T7588.1-2020, dual-chip safety, 5.5-45KW.