1. Introduction
The Linecome LNC860S Series AC Frequency Converter is a high-performance vector frequency converter designed for precise motor control in various industrial applications. It offers advanced features such as current vector control, multiple expansion card options, and support for various fieldbuses, enabling higher precision motor control and energy efficiency.

2. Specifications
General Specifications
| Attribute | Value |
|---|---|
| Name | Vector Frequency Converter |
| Model Number | LNC860S-2S0007GB/2S0015PB |
| Brand Name | Linecome |
| Material | PC+ABS |
| Color | White grey |
| Origin | Mainland China |
| Control Mode | V/F |
| Nominal Voltage | 220 V |
| Power Phase Number | Single Phase |
| Rated Power | 0.75KW |
| Input Voltage | Single phase 220V |
| Output Voltage | Three phase 220V |
| Output Frequency | 0-500Hz |
| IP Level | IP20 |
| Size | 170*101*142mm |
| Installation Size | 90*157mm |
| Weight | 1.6kg |
| Certification | CE, ISO |
| Display | LED Display |
Model-Specific Power Ratings
| Model | Input/Output Voltage (V) | Rated Power (kW) | Rated Input Current (A) | Rated Output Current (A) |
|---|---|---|---|---|
| LNC860S-2S0007GB/2S0015PB | Single Phase 220V±15% / Three Phase 220V±15% | 0.75 | 8.2 | 4 |
| LNC860S-2S0015GB/2S0022PB | Single Phase 220V±15% / Three Phase 220V±15% | 1.5 | 14 | 7 |
| LNC860S-2S0022GB/2S0040PB | Single Phase 220V±15% / Three Phase 220V±15% | 2.2 | 23 | 9.6 |
| LNC860S-4T0007GB/4T0015PB | Three Phase 380V±15% / Three Phase 380V±15% | 0.75 | 3.4 | 2.1 |
| LNC860S-4T0015GB/4T0022PB | Three Phase 380V±15% / Three Phase 380V±15% | 1.5 | 5 | 3.8 |
| LNC860S-4T0022GB/4T0040PB | Three Phase 380V±15% / Three Phase 380V±15% | 2.2 | 5.8 | 5.1 |
| LNC860S-4T0040GB/4T0055PB | Three Phase 380V±15% / Three Phase 380V±15% | 4 | 10 | 9 |
| LNC860S-4T0055GB/4T0075PB | Three Phase 380V±15% / Three Phase 380V±15% | 5.5 | 15 | 13 |
| LNC860S-4T0075GB/4T0110PB | Three Phase 380V±15% / Three Phase 380V±15% | 7.5 | 20 | 17 |
| LNC860S-4T0110GB/4T0150PB | Three Phase 380V±15% / Three Phase 380V±15% | 11 | 26 | 25 |
| LNC860S-4T0150GB/4T0185PB | Three Phase 380V±15% / Three Phase 380V±15% | 15 | 35 | 32 |
| LNC860S-4T0185GB/4T0220PB | Three Phase 380V±15% / Three Phase 380V±15% | 18.5 | 38 | 37 |
| LNC860S-4T0220GB/4T0300PB | Three Phase 380V±15% / Three Phase 380V±15% | 22 | 46 | 45 |
| LNC860S-4T0300G/4T0370P | Three Phase 380V±15% / Three Phase 380V±15% | 30 | 62 | 60 |
| LNC860S-4T0370G/4T0450P | Three Phase 380V±15% / Three Phase 380V±15% | 37 | 76 | 75 |
| LNC860S-4T0450G/4T0550P | Three Phase 380V±15% / Three Phase 380V±15% | 45 | 92 | 91 |
| LNC860S-4T0550G/4T0750P | Three Phase 380V±15% / Three Phase 380V±15% | 55 | 113 | 112 |
| LNC860S-4T0750G/4T0900P | Three Phase 380V±15% / Three Phase 380V±15% | 75 | 157 | 150 |
| LNC860S-4T0900G/4T1100P | Three Phase 380V±15% / Three Phase 380V±15% | 90 | 180 | 176 |
| LNC860S-4T1100G/4T1320P | Three Phase 380V±15% / Three Phase 380V±15% | 110 | 214 | 210 |
| LNC860S-4T1320G/4T1600P | Three Phase 380V±15% / Three Phase 380V±15% | 132 | 256 | 253 |
| LNC860S-4T1600G/4T2000P | Three Phase 380V±15% / Three Phase 380V±15% | 160 | 307 | 300 |
| LNC860S-4T2000G/4T2200P | Three Phase 380V±15% / Three Phase 380V±15% | 200 | 385 | 377 |
| LNC860S-4T2200G/4T2500P | Three Phase 380V±15% / Three Phase 380V±15% | 220 | 430 | 426 |
| LNC860S-4T2500G/4T2800P | Three Phase 380V±15% / Three Phase 380V±15% | 250 | 468 | 465 |
| LNC860S-4T2800G/4T3150P | Three Phase 380V±15% / Three Phase 380V±15% | 280 | 525 | 520 |
| LNC860S-4T3150G/4T3550P | Three Phase 380V±15% / Three Phase 380V±15% | 315 | 590 | 585 |
| LNC860S-4T3550G/4T4000P | Three Phase 380V±15% / Three Phase 380V±15% | 350 | 665 | 650 |
| LNC860S-4T4000G/4T4500P | Three Phase 380V±15% / Three Phase 380V±15% | 400 | 785 | 725 |
| LNC860S-4T4500G/4T5000P | Three Phase 380V±15% / Three Phase 380V±15% | 450 | 823 | 820 |
| LNC860S-4T5000G/4T5600P | Three Phase 380V±15% / Three Phase 380V±15% | 500 | 883 | 875 |
| LNC860S-4T5600G/4T6300P | Three Phase 380V±15% / Three Phase 380V±15% | 560 | 920 | 980 |
| LNC860S-4T6300G/4T7100P | Three Phase 380V±15% / Three Phase 380V±15% | 630 | 1080 | 1120 |
| LNC860S-4T7100G/4T7500P | Three Phase 380V±15% / Three Phase 380V±15% | 710 | 1126 | 1283 |
| LNC860S-4T7500G | Three Phase 380V±15% / Three Phase 380V±15% | 750 | 1250 | 1355 |

3. Key Components

- Fan: Provides cooling, dust-proof, and noise reduction for optimal performance.
- PCB Board: Features special protective paint for acid and alkali resistance and aging resistance.
- Control Board: Ensures low frequency, high torque, and automatic voltage regulation.
- Keypad: Simplified design for easy operation with a clear digital display.
4. Setup and Installation
Safety Precautions
- Ensure power is disconnected before any installation or wiring.
- Only qualified personnel should perform installation and wiring.
- Verify correct voltage and current ratings before connecting.
- Proper grounding is essential for safety.
Wiring Instructions
The frequency converter features clearly marked terminals for input and output connections:
- R, S, T: These are the input terminals for the three-phase power supply of the frequency converter.
- U, V, W: These are the output terminals of the frequency converter and should be connected to the three-phase asynchronous motor.
- P+ and PB: These terminals are used for connecting to an external brake unit, if applicable.
Ensure all connections are secure and insulated to prevent short circuits or electrical hazards.
5. Operation
Keypad Functions

The VFD is equipped with an intuitive keypad for easy control:
- RUN (Green Button): Initiates motor operation.
- STOP (Red Button): Halts motor operation.
- ENTER (White Button): Confirms selections or parameter changes.
- Up/Down Arrows: Navigate through menus and adjust parameter values.
- Left/Right Arrows: Shift cursor or change digits during parameter editing.
- FUNC/DATA: Accesses function menus or displays data.
- PROG: Enters programming mode.
Basic Operation Steps
- Power On: Ensure all wiring is correct and apply power to the VFD. The LED display will light up.
- Set Frequency: Use the Up/Down arrows to adjust the desired output frequency.
- Start Motor: Press the green 'RUN' button to start the motor. The motor will accelerate to the set frequency.
- Stop Motor: Press the red 'STOP' button to halt the motor. The motor will decelerate and stop.
- Parameter Adjustment: For advanced settings, press 'PROG' to enter programming mode and use the navigation buttons to select and modify parameters. Refer to the detailed programming manual for specific parameter codes.
6. Typical Applications
The Linecome LNC860S Series AC Frequency Converter is versatile and suitable for a wide range of industrial uses, including:
- Pumping Units
- Water Pumps
- Solar Energy Systems
- Conveyor Belts
- Textile Machines
- Printing and Dyeing Machines
- Crushers
- CNC Lathes
- Automated Workshops






7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your frequency converter:
- Cleaning: Periodically clean the exterior of the unit and ensure ventilation openings are free from dust and debris. Use a soft, dry cloth. Do not use liquid cleaners.
- Inspection: Regularly check all wiring connections for tightness and signs of wear or damage. Inspect the cooling fan for proper operation and any unusual noises.
- Environment: Ensure the operating environment is within specified temperature and humidity ranges to prevent damage.
8. Troubleshooting
This section provides solutions to common issues you might encounter:
- No Power/Display Off: Check the input power supply and ensure all connections are secure. Verify the circuit breaker or fuse is not tripped.
- Motor Not Starting: Ensure the 'RUN' command is active and the frequency setting is not zero. Check for any error codes on the display and consult the detailed manual for their meaning. Verify motor wiring.
- Overcurrent/Overload Fault: This could indicate an issue with the motor, excessive load, or incorrect parameter settings. Reduce the load, check motor health, or adjust current limits in parameters.
- Overvoltage/Undervoltage Fault: Check the input power supply voltage. Ensure it is within the specified range (e.g., 220V±15% or 380V±15%).
- Overheat Fault: Check if the cooling fan is operating correctly and if the ventilation openings are clear. Ensure the ambient temperature is not too high.
For persistent issues or complex fault codes, please contact technical support.
9. User Tips
- Always ensure the input and output voltage ranges of the VFD match your application's requirements to prevent damage.
- For optimal performance and safety, consider professional installation, especially for complex industrial setups.
- Familiarize yourself with the keypad functions and basic parameter settings before operating the unit in a live environment.
10. Warranty and Support
The Linecome LNC860S Series AC Frequency Converter comes with an 18-month warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal operating conditions.
For warranty claims, technical assistance, or any product-related inquiries, please contact your vendor or the manufacturer's support channels. Ensure you have your product model number and purchase details ready.
11. Frequently Asked Questions (FAQ)
- Q: How do you ensure the quality of your products?
- A: Our production process is ISO9001-certified, ensuring strict quality control. We have a dedicated QC department with IQC, IPQC, OQC, and FQC inspections. We also utilize fully automatic testing equipment and assign unique codes to each product for traceability.
- Q: About the terminal instructions of the frequency inverter?
- A: R, S, T are input terminals of three-phase power supply of frequency converter. U, V, W are output terminals of frequency converter, and connected three-phase asynchronous motor. P+ and PB are connected to the brake unit.
- Q: What voltage range can you support?
- A: We support various configurations: Single-phase 220V input, single-phase 220V output; Single-phase 220V input, three-phase 220V output; Three-phase 220V input, three-phase 220V output; Single-phase 220V input, three-phase 380V output; Three-phase 380V input, three-phase 380V output.
- Q: What are the advantages of your product?
- A: Our products boast a patented appearance, backed by a professional technical and quality management team. We can customize products to meet your specific requirements and we have a dozen patented technologies.