Danfoss PVG 16 Technical Information

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Danfoss PVG 16 Technical Information Manual pdf 75 page image

PVE Electro-hydraulic ActuationThe analog PVE Series 6 is an electro-hydraulic actuator used to control a single work section of a PVGproportional valve group. The PVE actuator program for PVG 16 includes variants with differentperformance levels and features.The actuator positions the main spool in a PVG work section to control either the flow or the pressure ofthe oil distributed to and from the work function. The control signal to the actuator is an analog voltagesignal, enabling the user to operate the work function remotely by means of a joystick, a controller or thesimilar.The electro-hydraulic solenoid valve bridge of the actuator is available in different designs utilizingdifferent regulation principles, depending on performance variant. The actuator positions the main spoolby distributing pilot oil pressure to either side of it, pressurizing one side by pilot pressure while relievingthe opposite side to tank and vice versa. All proportional actuators feature a closed- loop spool controland continuous fault monitoring.The analog PVE Series 6 actuator program for PVG 16 features two different main hydraulic principlevariants (PVEO and PVEA).The different hydraulic principles combined with the different solenoid valve regulation principlesdetermine whether the actuator controls the spool proportionally according to a demand signal orON/OFF according to a voltage signal. The voltage control characteristic of the PVE actuators is shown inthe figure below on the left side.PVG 16 with PVEO sectional viewTechnical InformationPVG 16 Proportional Valve GroupPVG 16 Actuation© Danfoss | December 2018 BC00000211en-000901 | 75