This document is a user manual for the C320 series sensorless current vector variable frequency drive produced by Shenzhen Sunfast Electric Technologies Co., Ltd. The manual provides installation, wiring, functional parameters, daily maintenance, fault diagnosis, and troubleshooting guidelines for the C320 series variable frequency drive.
The Sunfast C320 series inverter manual covers all steps needed to install and commission the device safely. It includes unboxing checks, safety precautions, wiring guidelines, and detailed descriptions of the control panel and physical dimensions.
Technical sections describe the inverter’s functional parameters, communication options, and maintenance procedures, along with fault diagnosis and example applications. Appendices provide RS485 protocol details and optional accessories. This manual is written in Chinese.
| Rated Input Voltage (3‑phase) | 380 V 50/60 Hz |
|---|---|
| Input Voltage Range (3‑phase) | 320 V ~ 460 V |
| Output Frequency Range | 0 ~ 300 Hz |
| Control Methods | V/F control, sensor‑less current vector control |
| Overload Capacity | 110 % continuous, 150 % 1 min, 180 % 2 s |
| Communication Interface | RS485 |
The inverter can handle 110 % overload continuously, 150 % for one minute, and 180 % for two seconds.