11
Systemdescription
5
sysTem DescripTiOn
5.1
structure and function
The control head Type 8695 can control single or double-acting process valves.
The control head Type 8695 has been optimized for the integrated modular fitting of series 21xx process valves
(Element) with actuator size
∅
50. Various expansion stages are possible thanks to the modular design.
For installation on the 20xx series (Classic) there is a special model which is described in chapter “5.1.2”.
The valve position is recorded via a contactless, analog sensor element which automatically detects and saves the
valve end positions by means of the teach function during start-up.
Option: Communication possible via AS-Interface and DeviceNet.
5.1.1
control head for integrated installation on 21xx series
(element)
Electrical connection
Circular plug-in connector
M12 x 1
Air exhaust port
(label: 3)
Pressure limiting valve
(for protection against
too high internal pressure
in case of error)
Pilot air port
(label: 1)
Teach function
Fastening screws (2 x)
View without transparent cap:
Connection housing
Figure 1:
Structure and function
english
Type 8695
