D3055 PWM Proportional Solenoid Driver, Dual Coil Output
Description:
This pulse width modulated (PWM) solenoid driver module is designed to be used for open loop motion and speed control systems. Each of the two outputs is unipolar and will drive all solenoid coils with current requirements up to 5 amps. The command signal can be obtained from either a potentiometer or an external, bipolar voltage source.
This industrial grade module is a true high performance current regulator. It incorporates current loop feedback to maintain the output signal to the valve coil within 1% of the setpoint as the load impedance, input voltage, and ambient temperature are varied over the specified operating range. Pulse width modulated switching provides high efficiency as the output current is varied from minimum to maximum.
Each pulse width modulated driver module includes the controls required to set the minimum and maximum output for each coil current as well as the dead band around zero. The input command signal is bipolar and can be obtained from an external command potentiometer or from a remote voltage signal. The output current to the selected coil will vary from the minimum to the maximum as the input signal is adjusted from zero to the rated value. Positive input signals will drive coil A, negative signals will drive coil B. The module requires a positive 10 to 30 volt DC power supply to drive the solenoids. In addition, the user must supply the bipolar source for the input command voltage signal. Both power supplies must operate at the same common potential.
The circuit board is solder masked. All external power and valve coil connections are made to a barrier type terminal block with #6-32 captive wire clamping plates. External command signals are made to .25 inch male tabs. All external connections are clearly marked on the board. The board can be mounted in the user's control enclosure on standoffs or located in plastic mounting track.
Applications:
Proportional solenoid valves, electric and magnetic particle brake and clutch assemblies, as well as small dc motors operating as torque controllers.
Downloads:
Model selection sheet = MS3055
Data sheet = DS3055
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