ATV 21 variable frequency drive is a product of TE Connectivity. It features modularity, interchangeable functions, light weight, user-friendly operation, support for field bus, connection system and software standards, and remote monitoring via the Internet.
The ATV21 is a frequency transformer designed for three‑phase asynchronous motors with power ratings from 0.75 kW up to 75 kW. It is targeted at HVAC, ventilation and water‑pump applications and includes built‑in EMC filtering and multiple communication options.
The manual covers electrical schematics, EMC compliance, installation recommendations, functional descriptions, communication interfaces (Modbus, CANopen, LONWORKS, METASYS N2, APOGEE FLN, BACnet, Ethernet TCP/IP, DeviceNet), protection and safety features, as well as detailed technical specifications and environmental limits. This manual is written in Chinese.
| Power range | 0.75 kW – 75 kW |
|---|---|
| Output frequency range | 0.5 Hz – 200 Hz (up to 500 Hz in some models) |
| Voltage/frequency ratio | 2‑point or 5‑point |
| Operating temperature | -10 °C to +40 °C (no derating), up to +50 °C with derating |
| IP rating | IP20 (UL type 1) or IP54 depending on model |
| Input voltage options | 3‑phase 200‑240 V (0.75‑30 kW) UL type 1/IP 20; 3‑phase 380‑480 V (0.75‑75 kW) UL type 1/IP 20 |
The ATV21 can drive three‑phase asynchronous motors from 0.75 kW up to 75 kW.
It operates from –10 °C to +40 °C without derating and up to +50 °C with derating.
Two options are provided: 3‑phase 200‑240 V for 0.75‑30 kW (UL type 1/IP 20) and 3‑phase 380‑480 V for 0.75‑75 kW (UL type 1/IP 20).