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 controlled.
Setting is possible by buttons and display inside the case, or with a
notebook by RS232 with the software EDC-PC, (see par. 6.2