Valve Driver efficiently manages proportional valves.April 20, 2011 -
D1 PWM Valve Driver converts proportional command voltage into a -1.1-1.1 A current signal to drive valve's linear force motor. Valve deadband, dither amplitude, and maximum current are all adjustable. Digital closed loop current control compensates for perturbations such as change in input voltage and change in coil resistance due to temperature. Other features include short circuit protection and LED indicators for power and status/fault activity. Temperature range is -40 to 150°F.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Enfield Technologies, LLC
41 Monroe Tpke.
Trumbull, CT, 06611
USA
New Valve Driver Efficiently and Economically Manages Proportional Valves
The D1 PWM Valve Driver from Enfield Technologies is designed specifically to drive and manage the company's proportional valves, as well as those of several other brands. Compact and easy to implement, the D1 converts proportional command voltage into a -1.1...1.1A current signal to drive the valve's linear force motor. The low-cost D1 helps users avoid the effort and expense of characterizing valves and developing electronics for their application.
The D1 allows a 12 or 24 VDC power supply, to accommodate most applications. Its valve deadband, dither amplitude and maximum current are all adjustable. For applications using programmable logic controllers (PLCs) or computers, the D1 easily interfaces with the valve, eliminating the need to write valve management routines that consume valuable processing cycles needed for other machine functions.
Its digital closed loop current control implemented by software efficiently compensates for different types of perturbations such as change in the input voltage and change in the coil resistance due to temperature. Other features of the D1 Driver include short circuit protection, highly efficient design (no heat sink is required) and LED indicators for power and status/fault activity. With a temperature range of -40 degrees C. to 65 degrees C. (-40 degrees F to 150 degrees F), the versatile D1 is designed for use in a variety of environments.
The unit's enclosed format is ideal for panel mount systems or applications where the electronics will be exposed to end-users. The D1 comes with a DIN clip for rail mounting, or the clip can be removed for flat surface mounting either from within the enclosure or from the bottom.
Enfield Technologies has the expertise to solve the challenges of any custom drive application. For example, the D1 Driver can be customized to suit many different valves, and it can be equipped with additional control electronics as required.
Enfield Technologies
P) 800-504-3334 / 203-375-3100
E) info@enfieldtech.com
W) enfieldtech.com
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