VLT 6005 Danfoss
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The Danfoss VLT 6005 is part of the VLT 6000 HVAC Drives series and is designed to deliver a typical shaft output of 3.0 kW or 4 HP. The drive features a starting torque of 110 percent, a speed control range of 1 to 100, and maintains a true power factor of 0.90. It supports a rated motor frequency of 50 or 60 Hz and can operate at altitudes up to 1000 meters with a maximum ambient temperature of 45°C.
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Product Description:
The VLT 6005 is a variable-speed HVAC drive manufactured by Danfoss within the VLT 6000 HVAC Drives series. Designed for fan and pump duty, the unit modulates induction-motor speed and torque to match real-time thermal loads in air-handling and chiller circuits. By converting fixed utility frequency into a controlled output, the drive helps building automation systems reduce energy demand while maintaining stable airflow.
The output frequency can be trimmed in increments of ±0.003 Hz, and a wide speed range of 1:100 permits slow operation during night setback as well as full-speed purge cycles. Dynamic commands are processed within 3 ms, so pressure or flow loops remain stable when dampers or valves shift. Electrical efficiency is supported by a displacement-corrected true power factor of 0.90. The drive can overcome static load friction because breakaway torque reaches 160%, and it supplies 110% overload torque for one minute to handle transient peaks. It supports motors designed for either 50 Hz or 60 Hz networks and accepts a phase voltage imbalance of ±2.0% without tripping.
The unit maintains full output at elevations up to 1000 m and at ambient temperatures up to 45 °C inside IP20 enclosures. It can operate in air with relative humidity as high as 95% without condensation. The control sections can withstand a prospective short-circuit current of 100,000 A, supporting installation on high-capacity utility supplies. A vibration tolerance of 0.7 g RMS supports operation in locations subject to moderate mechanical movement. For medium-frame motors, the drive can deliver continuous shaft power of 3.0 kW. Its control response accommodates changing fan, pump, and compressor loads without disrupting regulated pressure or flow. The IP20 enclosure protects against accidental contact with internal electrical components while allowing the airflow needed for thermal management.
