SIPART PS2 with PROFIBUS communication
Operating Instructions, 09/2007, A5E00127926-07
5
Table of contents
Introduction.............................................................................................................................................. 11
1.1
Purpose of this document ............................................................................................................11
History..........................................................................................................................................11
Further information.......................................................................................................................12
General safety notes................................................................................................................................ 13
2.1
General information .....................................................................................................................13
Correct usage...............................................................................................................................13
Laws and directives .....................................................................................................................13
Measures .....................................................................................................................................14
Qualified Personnel......................................................................................................................15
Description............................................................................................................................................... 17
3.1
Function .......................................................................................................................................17
Structure.......................................................................................................................................17
Design overview...........................................................................................................................17
Type plate structure .....................................................................................................................20
Operation with natural gas...........................................................................................................21
Safety notes for operation with natural gas .................................................................................21
Natural gas as an actuator medium.............................................................................................21
Device components .....................................................................................................................23
Overview of device components..................................................................................................23
Motherboard.................................................................................................................................25
Electrical connections ..................................................................................................................25
Pneumatic connections................................................................................................................26
3.4.4.1 Pneumatic connection on the standard controller........................................................................26
3.4.4.2 Pneumatic connection in the flameproof enclosure.....................................................................27
3.4.4.3 Pneumatic connection versions ...................................................................................................27
Purge air switching.......................................................................................................................29
Restrictors....................................................................................................................................29
Functional principle ......................................................................................................................30
Control system .............................................................................................................................30
Microcontroller..............................................................................................................................30
Pneumatic actuator ......................................................................................................................31
Control algorithm..........................................................................................................................31
PROFIBUS PA.............................................................................................................................32
Overview ......................................................................................................................................32
Transmission technology .............................................................................................................32
Bus topology ................................................................................................................................32
Properties.....................................................................................................................................33
Profile ...........................................................................................................................................33