3
1 QUICKSTART ..................................................................................................5
1.1 Definition of term / abbreviation .............................................5
1.2 Symbols ....................................................................................... 5
2 AUTHORIZED USE ......................................................................................6
2.1 Restrictions ................................................................................. 6
3 BASIC SAFETY INSTRUCTIONS ..........................................................7
4 GENERAL INFORMATION ........................................................................8
4.1 Contact addresses ...................................................................8
5 DESCRIPTION OF SYSTEM ....................................................................8
5.1 Structure ......................................................................................8
5.2 General description .................................................................. 9
6 TECHNICAL DATA ........................................................................................9
6.1 Conformity ................................................................................... 9
6.2 Standards .................................................................................... 9
6.3 Operating conditions ................................................................9
6.4 Mechanical data.......................................................................10
6.5 Electrical data ...........................................................................10
6.6 Electrical data with AS-Interface bus control (optional) 11
6.7 Pneumatic data ........................................................................11
7 OPERATING .................................................................................................. 12
7.1 Operating status ....................................................................... 12
7.2 Control and display elements of the positioner ................12
7.3 Error messages ......................................................................... 16
8 ATTACHMENT AND ASSEMBLY ............................................................17
8.1 Installation of devices for the hazardous area ...................17
8.2 Attachment to a proportional valve with NAMUR linear .....
actuators ....................................................................................17
8.3 Attachment to a proportional valve with rotary actuator . 21
8.4 Remote operation with external position sensor ..............24
9 FLUID CONNECTION ..............................................................................25
9.1 Connection of devices for the hazardous area .................25
9.2 Safety instructions ...................................................................25
9.3 Safety end positions ...............................................................26
10 ELECTRICAL CONNECTION ................................................................28
10.1 Connection of devices for the hazardous area .................28
10.2 Safety instructions ...................................................................28
10.3 Electrical connection with circular plug-in connector ........
M12, 8-pole ..............................................................................28
10.4 Electrical connection with cable gland ...............................30
10.5 Electrical installation AS-Interface........................................32
10.6 LED status display AS-Interface ..........................................33
11 START-UP ...................................................................................................... 34
11.1 Safety instructions ...................................................................34
11.2 Specifying the standard settings .........................................34
Positioner Type 8791
