This is a user manual introducing the use of ACS 400 frequency converter, including safety warnings, installation, operation, maintenance and other contents
This manual covers the ACS 400 frequency converter range (2.2 kW to 37 kW). It begins with safety warnings for qualified electricians, explains installation procedures, and details the mounting, wiring and control interfaces.
Later sections describe programming, parameter settings, fault diagnostics, and provide full technical specifications, accessories and compliance information for the drive.
| Input voltage (U1) | 380 V – 480 V ± 10 % |
|---|---|
| Continuous output current (I2NSQ) | 6.6 A (for 2.2 kW model) |
| Switching frequency (fSW) | 4 kHz (standard) / 8 kHz (low‑noise) |
| Over‑temperature limit | 95 °C (heat sink) |
The ACS 400 accepts an input voltage between 380 V and 480 V, with a tolerance of ±10 %.
Use the Resetting the Drive from the Control Panel function, described on page 34 of the manual.
The drive can operate at a standard switching frequency of 4 kHz or a low‑noise mode at 8 kHz.