- Integrated All-Pole Sine Filter: Ensures stable and noise-free operation while protecting motors from voltage peaks and bearing currents.
- Flexible Control Options: Supports analog input (0-10V, 0-20 mA, PWM) and external potentiometer control for precise speed adjustments.
- Motor Protection & Reliability: Compatible with external rotor motors; includes thermostat/thermistor connections and potential-free operation notifications.
- Retrofit Friendly: Works with existing non-shielded cables, making it ideal for upgrading older systems without rewiring.
- Wide Voltage & Robust Design: Operates from 208-480V, 3-phase, 50/60Hz, with IP54 enclosure and up to 10A current capacity for demanding industrial environments.
The FRQS-10A V2 is a high-performance analogue speed controller designed for 3-phase fans, featuring an integrated all-pole sine filter for trouble-free motor operation. Ideal for retrofit installations, it eliminates the need for shielded cables, allowing existing wiring to be retained. This controller ensures reliable operation even with motors typically unsuitable for frequency inverter use, such as external rotor motors. It provides flexible control with 0-10V analog input, 0-20 mA or PWM signals, and a 10V output for external potentiometers. With built-in motor protection, potential-free operation notification, and compliance with EN 61000-6-2/3 interference standards, the FRQS-10A V2 guarantees safe, quiet, and efficient performance across a wide voltage range.
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