User Selectable Input, 0-3A or 0 to +/-3A Output
The 3 Amp Solenoid Driver simplifies control of proportional solenoids by supplying a current proportional to a user selectable input control. It is suited for industrial applications interfacing with a PLC. The available inputs include: 0-2.5V, 0 to +/- 2.5V, 0-5V, 0 to +/-5 V, 0-10V, 0 to +/-10V, 0 to +/-20V, 4-20 mA, and 0-20 mA. The controller accepts power supply voltages from 8 to 28 VDC. This linear solenoid driver utilizes high-frequency switching output (PWM) to provide a DC current output. Output is user selectable as 0 to 3 Amps or 0 to +/- 3 Amps. A current sensing circuit maintains output current regardless of changes in input voltage and coil resistance.
The user can adjust PWM frequency, maximum current, minimum current, a superimposed dither frequency and amplitude using single turn trim potentiometers. A sine, square or triangle dither waveform is user selectable. An auxiliary output permits monitoring of current output with a voltmeter with a scale of +/-1V/1A. The unit is available as a stand alone PCB Board or as a Packaged Driver enclosed in an IP67 rated metal housing with cable or strain reliefs. It is designed for mounting close to the valve. Other versions are available with a 2A maximum current output including a remote mount driver with filter and various DIN 43650 coil mount models.