Structure; Representation - Burkert 8791 Manuel D'utilisation

Type 8791

Structure

6. sTrucTure
The positioners Type 8791 consist of the micro-processor controlled electronics, the position measuring system
and the control system.
The appliance is designed using three-wire technology. The unit is operated via 2 keys and 4 DIP switches.
3 LEDs indicate the different statuses of the unit.
The pneumatic control system for single-acting and double-acting actuators consists of 2 solenoid valves.
6.1.

representation

Air exhaust connection/
air exhaust filter
Fig. 1: Structure, positioner type 8791
Pressure-relief valve
Mechanical position indicator
Display module with 3 LEDs
Working connection 2
(connection: A2)
Supply pressure connection 1.4 – 7 bar
(connection: P)
Working connection 1
(connection: A1)
Electronic module
Internal position measuring system
Control system
Axle for position measuring system
Cable gland
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