Purpose

This general-purpose variable frequency drive is designed for regulating the rotation speed of an AC electric motor with a maximum power output of 90 kW. This drive is suitable for both general ventilation and smoke extraction ventilation systems.

Certified fire mode

The fire mode prevents the drive from a self-protecting shut-down. While in this mode the drive continues to perform speed regulation duty for mission-critical fans irrespective of control signals, warnings and alarms which may otherwise force it shut down.

Filter

A built-in throttle on the DC link ensures a low harmonic load on the power mains as per the EN 61000-3-12 standard requirements.

Installation

Thanks to an ultra-compact design the drive can be easily fitted into a larger unit or panel of an air ventilation system. The casings are rated IP20/Type 1/IP21 (optional) and IP54.

Inputs and outputs

• Four PNP or NPN programmable digital inputs, 0-24 V DC
• 2 analogue inputs (0-10 V or 0/4-20 mA)
• 2 analogue outputs (0/4-20 mA)
• 2 relay outputs
• Modbus RTU (RS 485)
• BACnet MSTP
• FC Protocol
• N2 Metasys
• FLN Apogee