Variable Speed Motor Drives

Industrial Controls Div.

Variable Speed Motor Drives

We also offer a comprehensive range of Variable Speed Motor Drives for HVAC, Industrial, Food and Beverage, OEM, Hydraulic and Marine applications.

	The NEW VLT Micro Adjustable Frequency Drive, is the perfect drive for OEMs and panel builders needing a small AC motor control which provides a simple, easy to operate drive for low horsepower applications (1/2 to 3 HP) and includes, programmable digital inputs and outputs, adjustable carrier frequency up to 18 kHz and an optional remote mounted user friendly keypad.
	The VLT 2800 Provides a full-featured drive for low horsepower applications. (1/2 to 10 HP). The built-in PID controller eliminates the need for external system controllers and comes with an RS-485 interface for serial communication plus DC link inductors control harmonics on the power line (380/460V models).
	The VLT 5000 with VVC Plus VLT 5000 Series features an inverter control system called VVCPlus, which is a further development of the Voltage Vector Control (VVC) from the Danfoss VLT Series 3000. In a "special motor mode", permanent magnet synchronous motors and/or parallel motors can be used. Compared with a standard voltage/frequency control, VVCPlus offers improved dynamics and stability. In addition, we have implemented a fully digitalized protection concept, which insures reliable operation, even under the worst possible operating conditions.
	The VLT 6000 Series Offers features unique to HVAC drives such as built-in serial communication capability, built-in 2-setpoint/2-feedback PID controller and Automatic Energy Optimization which constantly adjusts voltage applied to motor for energy savings. In addition, Automatic Switching Frequency Modulation provides quiet motor operation by adjusting carrier frequency. To conserve wall space in crowded equipment rooms, Danfoss Graham offers the Integrated Bypass/Fused Disconnect option. (Above) Each unit is the same width as the drive.