Burkert Type 8691 - Manual (Page 8)

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
Connection housing
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 connection housing 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
Connection housing
Fig. 3: Structure for process valves belonging to the 20xx series
english
Type 8691