IMOPC VXA energy saving drive for fluid applications

The VXA inverter drive series from IMO Precision Controls UK has been designed for a wide range of fluid and pumping applications from 0.75 to 710 kW at 380/480 V three phase.  Energy saving applications include oil pumping; CNC coolant pumping; Injection moulding machines; hydraulic presses, and waste and water applications.

Up to 90 kW they include an integral EMC filter and DC reactor and a choice of either IP21 or IP55 construction. Larger ratings from 110 kW to 710 kW also include external EMC filter and DC reactors and are available in IP00 construction.

In addition to energy savings resulting from speed control, the VXA drives offer other energy saving features such as linearisation which reduces terminal pressures during low demand and reduces water wasted through leakage and seepage.

For pumping applications, the VXA offers anti-jamming, dry pump detection.  Pump downtime can also be reduced by using the anti-ragging feature to reduce pump clogging.

All models include a real-time clock function to date and time stamp up to ten previously stored alarms.  In addition, up to four timers can be set per week, and for southern Europe, up to twenty holidays a year. Daylight saving is also available.

A detachable, easy-to-use keypad offers multi-language support, HELP function, unit setting with SV and PV values, data copy (three kinds).  The keypad can be remove, left on the drive or operated using an 0ptional cable.

Communications protocols

Standard on-board communications include BACnet MS/TP; Modbus RTU and Metasys N2.   Up to three types of built-in optional boards can be mounted at the same time and users can select from LonWorks; DeviceNet; Ethernet; CANopen; Profibus and CC-Link

Cascade Control for water applications

Cascading pump control is the function that controls multiple pumps with one inverter. The pumps are controlled with a combination of inverter drive and mains driven motors. This can be applied in a large-scale water treatment plant.

In cascading pump control, the signals of flow rate and pressure sensors are controlled by the PID controller built into the inverter. Each pump is driven either by the inverter or mains driven motor according to the switching signal from the inverter. The pumps are controlled only by the inverter when the discharge volume is small; the inverter then starts extra pumps one by one by one as the discharge volume increases in order to maintain the required discharge volume.

See VXA brochure here

See more IMOPC drives at 999 Inverters.com