The VLT® AQUA Drive FC202 is designed to provide the highest level of performance of AC-motor-driven applications. Featuring a wide range of powerful standard features, which can be expanded with performance-improving options, the drive is equally suited to both new and retrofit projects. The new generation Danfoss FC202 can realistically offer first-year cost savings of between 10–30% compared to traditional drive solutions. Its high lifetime availability and low energy consumption and maintenance costs provide you with the lowest cost of ownership.
The quick and user-friendly setup reduces installation time ensuring a fast route to maximum energy efficiency and motor control. By collecting the most important parameters in one place, the risk of incorrect configuration is reduced significantly.
The considerable daily load variation in water or wastewater treatment plants makes it economically feasible to introduce motor control on rotating equipment such as pumps and blowers.
Operating the Danfoss FC202 in a closed loop mode with a pressure transducer causes the pump speed to vary in a manner to operate at a constant pressure, independent of flow requirements. Applications include Rural Irrigation and Town Water Supplies.
Flow transducer feedback can be used with the Danfoss FC202 for flow limited operation.
The Danfoss FC202 VFD is an ideal replacement for the older Danfoss VLT6000 drives and Danfoss VLT8000 drives. New Zealand farming is very dependent on a good controlled quantity of water with many constraints and consents to ensure that water is not wasted. Water may com from deep wells using submerible pumps, or from rivers via controlled canals. Commonly today, the water is stored locally above ground in a large pond and then is pumped at pressure through pipes across the farm to Pivot Irrigators, Guns or water cannons, sprinklers and rotary sprayers.
A Danfoss FC202 is used to control the speed of the pump in a manner to a) regulate the main line pressure, or b) to limit the flow.
Controlling the speed of the pump can reduce the energy wasted when the flow rate is reduced, perhaps when only partial irrigation is required.
While most of the irrigation functionality is built into the FC202 drive, there are often operational enhancements required such as concurrent monitoring and control of : pressure, flow and well depth (or suction pressure). Under these situations, we will typically add an Advanced Motor Control Pump Controller which provides enhunced pump control, protection and multipump control.
The FC202 comes standard with a pipe fill mode of operation to enable a controlled filling of the pipes preventing the pump from operating off the end of the curve.
The FC202 is equiped with a two zone PID controller where the primary control is pressure, but a flow limit can be set up to override the pressure control.
The FC202 has an inbuilt Cascade function enabling the drive to call for additional pumps where the controlled pump becomes overloaded. A more enhanced cascade control is available as and option.
Should the hydraulic demand disappear, (irrigators switch off), the FC202 is able to shut down and SLEEP until the pressure drops and it needs to start to run the pump again.
Refrigeration Centrifugal and Screw Compressors can be used with the Danfoss FC202 drive to regulate the compressor speed and optimise energy efficiencies.
Unrestricted Circulating fans can be controlled by Danfoss FC202 drives to maximise efficiencies.
The Danfoss FC202 VFD is an ideal replacement for the older VLT6000 drives and VLT8000 drives.The VLT® AQUA Drive is the perfect match for Industrial Variable Torque applications including fans, pumps, blowers, and compressors. It is a direct replacement for the FC 322 and VLT6000. Available in a wide range of industrial enclosures from protected chassis to IP 66 (NEMA 4 X Indoor).
For High Torque and Heavy Duty applications, use the Danfoss FC302 Automation Drive.
A variable frequency drive controls the frequency and the voltage applied to an induction motor in order to control the speed that the motor operates at.
A variable frequency drive controls the speed that the pump rotates at and this in turn is effectively altering the size of the impellor in the pump.
In a closed loop control system, the PID controller built into the VFD, monitors the actual pressure using an inline pressure transducer and compares this with a target (or set point) pressure. If the pressure is low, the output frequency is increased. If the output is high, the frequency is reduced.
A VFD continuously controls the frequency and voltage supplied to the motor, allowing motor speed to be varied during operation. Where variable speed is required for the process, a VFD may be the correct solution.
A soft starter controls the starting and stopping of a motor and normally bypasses its power electronics once the motor reaches full speed. Where a motor normally operates at full speed and only controlled starting and stopping are required, a soft starter can provide a simpler solution with substantially lower running losses.