ASi air boxes from IFM include a single changeover (4/2) valve controlled from the ASi bus, providing control of the pneumatic actuators without the need for separate solenoid operated pilot valves and ASi slave modules. The modules also provide ASi digital inputs for use with position sensors.
The first versions employ monostable pilot valves, but IFM says bistable versions are on the way. The valves have an operating pressure range of 2 to 8bar, which can be extended to cover 90% vacuum to 8bar if an external pilot air supply of at least 3bar is available.
IFM Electronic Tel: 020 8213 0000