Edc Electronic Driver Card
The EDC-1 connector is a digital amplifier controlling open loop proportional valves. The unit supplies a variable current proportionally to the reference signal and independently of temperature variations or load impedance, with a resolution of 1% on 2600 mA (the full scale value). The PWM stage on the solenoid power supply makes it possible to reduce the valve hysteresis thus optimising control precision. The connector is customizable with different maximum current sizes and switching frequencies (PWM), optimized according to the valve to be control. Setting is possible by buttons and display inside the case, or by a notebook with software EDCPC/10 via RS232.
Besides, the connector is protected against overvoltage and polarity inversion. A protection against any short circuit is foreseen on the output.
Although it accepts voltage reference signals with 0 ÷ 10 V and 0 ÷ 5 V, in 4 ÷ 20 mA current, from an external generator (PLC, CNC) or external potentiometer.
The lit display indicate that the connector is ON and with +24V DC.
There are two way adjustments: variables view and parameters editing. The first one enables the real-time monitoring of the control values, for both required and read current, on both channels. The second mode enables the view and the editing of the operating parameters.
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