8
System description
Apart from the electrical position feedback, the status of the device
is optically displayed on the control head itself by a colored high-
power LED.
Option: Communication possible via AS-Interface or DeviceNet.
5.2. control head for integrated
installation on the 21xx series
Electrical connection
Cable gland
M16 x 1.5 or
Circular plug-in
connector M12 x 1
Exhaust air port
(label: 3)
Pressure limiting valve (for
protection against too high
internal pressure in case
of error)
Pilot air port
(label: 1)
Teach function
Top LEDs
Air intake filter
View without transparent cap
Body
casing
Fig. 2:
Structure for process valves belonging to the 21xx series
5.3. model for control of process valves
belonging to the 20xx series
A special model enables the control head Type 8691 to be attached
to process valves belonging to the 20xx series.
This model features has a different pneumatic connection module so
that the pilot air ports can be connected to the outside of the actuator
(see “Fig. 3”).
Pilot air outlet 2
1
Fastening screws (2 x)
Pilot air outlet 2
2
Fig. 3:
Structure for process valves belonging to the 20xx series
english
Type 8691
