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The 4-20mA Connector Amplifier simplifies control of proportional solenoids by supplying a current proportional to an input control (4-20mA). It accepts 12VDC or 24VDC power supply voltage. This linear solenoid driver utilizes high frequency switching output (PWM) to provide a DC current output. The options for maximum current output include 2 A, 1.2 A or 600mA. A current sensing circuit maintains output current regardless of changes in input voltage and coil resistance. The user can adjust maximum and minimum current. Ramp time, dither frequency and amplitude can also be adjusted to match the application. The unit is available with a DIN 43650 connection to mount directly on the coil. It is also available with 0-10V or 0-5V inputs. A remote mount version is housed in a rugged metal box.

 
Unit of Measure

Technical Specifications

 N/A (4-20 mA) Input, 2 A, Valve Controller with 5 m Cable

Order Code

 N/A P/N: AX020303

Operating Voltage

 N/A 12 or 24 VDC nominal

Signal Inputs

 N/A 4-20 mA current signal
(0-10 V and 0-5 VDC/0-20 mA/10K potentiometer control input versions are also available.)

Input Impedance

 N/A 50 Ohms

Output Current

 N/A 2A, 1.2A, or 600mA output versions available

Range of Maximum Output Current

 N/A 2A

Connections

 N/A DIN 43650-A 2 m, 4 conductor, unterminated cable (18 AWG)
(Remote mount version with cable available)

Solenoid Resistance Selection (Nominal)

 N/A Nominal resistance of solenoid coil should comply with: Rcoil < (Vpower supply - 1.5 V)/I-max.

Protection Rating

 N/A IP65 when correctly installed with lid, o-ring/washer and base gasket

Operating Temperature

 N/A -40 to 85 ºC-40 to 185 ºF

Approvals

 N/A CE Marking

Electromagnetic Compatibility (EMC)

 N/A Emission EN 50081-2 Immunity EN 50082-2

Applications

 N/A

Accurate control of hydraulic and pneumatic proportional solenoid valves used in mobile construction equipment and industrial processes.