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Control Unit CU4 AS-interface UK-0 / 31.05.2010
Control Unit
CU4 AS-interface
Operating Manual: UK-0
UK
4.
Mechanics and Pneumatics
4.6.
Solenoid valves
In the base of the control unit max. 3 solenoid valves are installed.
The 3/2-way solenoid valves are connected with the electronic
module by moulded cables and plug connectors.
control:
effected by pwm-signal
handle:
rotary switch at valve
4.7.
Throttling function
The operating speed of the valve actuator can be varied or
reduced. This may be necessary to slacken the actuation of the
valve in order to prevent pressure hammers in the piping
installation. For this purpose, the supply and exhaust air of the
first solenoid valve
can be adjusted via the throttling screws
respectively allocated in the interface of the solenoid valve.
4.8.
NOT element
The closing force of the valve actuator can be increased by
additional compressed air.
Through the installation of the logic NOT element, compressed
air is guided via a pressure reducing valve on the spring side of
the valve actuator.
The NOT element is also used for air/air actuators.
throttling screws
