Products

Hydraulic systems are becoming increasingly technically sophisticated and the need for electronic component control is rising. Hydraulic valve amplifiers typically use Pulse Width Modulation (PWM) valve control. This reduces both amplification size and power dissipation.
The modules PVA204 and PVA208 enable the direct control of proportional valves without an amplifier using a single solenoid, bipolar or dual solenoids. Up to 4 solenoids can be connected to the compact PVA204 module, and 8 solenoids on the PV208, thus up to 8 unipolar valves with a width of 55 mm. The current-regulated control means that the self heating or temperature increases of the valve solenoids do not affect the position of the valve. Up to 20 support points are provided for correcting the characteristic curve of each solenoid, thus ensuring very precise linearization.