This manual provides overview, specifications, installation, wiring, debugging, and fault troubleshooting for the INVT Goodrive300-21 dual‑frequency…
The Goodrive300-21 is a dual‑frequency integrated unit designed by INVT for synchronous or asynchronous twin‑screw air compressors. It supplies separate variable‑frequency drives for the motor and fan, provides a +24 VDC power output for the HMI touch screen, controls electromagnetic valves, and receives temperature and pressure signals, allowing it to replace conventional dual‑frequency control cabinets while reducing size and simplifying installation.
The document contains a product overview, detailed specifications, installation guidance with wiring diagrams, panel display description, debugging steps, function codes, control logic, PID tuning, fault information, and several appendices covering dimensions, optional accessories, communication protocols, and EMC handling. This manual is written in Chinese.
| Input voltage | 3‑phase AC220V(‑15%)~240V(+10%) / AC380V(‑15%)~440V(+10%) |
|---|---|
| Power factor | 0.9 |
| Output frequency range | 0 ~ 400 Hz |
| +24 VDC power output | 24 W (220 VAC/110 VAC 30 W) |
| Fault protection functions | 30+ types (over‑current, over‑voltage, under‑voltage, over‑temperature, phase loss, overload, …) |
| IP protection rating | IP20 |
| Communication interface | 1‑channel RS‑485 (two terminal connectors) |
It provides more than thirty fault protection functions, including over‑current, over‑voltage, under‑voltage, over‑temperature, phase loss and overload protection.
The unit includes a single RS‑485 communication channel with two terminal connectors.
The unit can operate from –10 °C to 50 °C; above 40 °C the rating is derated by 1 % per degree.
The device has an IP20 protection rating.