The STU-PWM proportional control card regulates solenoid valves, controlling up to 8 modules with 8+8 PWM outputs using analog input signals (0 to 5V). It also provides a stabilized 5V supply for potentiometric joysticks.
The card includes 8 analog inputs, CAN bus interface, 1 control panel enable input, 2 enable inputs, 1 for selecting LOW/HIGH speed (optional), and 3 ON/OFF inputs for direct control.
It has 8+8 PWM outputs for solenoid valves, a DUMP VALVE output for hydraulic pressure control, a FAULT output for error signaling, and 3 ON/OFF outputs.
Key features include adjustable PWM frequency, output currents, rise/fall time ramps, and optional speed settings. The DUMP VALVE has a programmable delay to prevent pressure spikes.
Its safety features include programmable deadband, stroke, and thresholds, as well as feedback-controlled relays and error reporting through the FAULT output.
