Burkert Type 8645 - Manual (Page 33)

ConfiGuraTion anD funCTion of The moDules
English
8645 - 
Pneumatic connections
Safety Precautions
WARNING!
Danger from excessive pressure in the casings!
The safety vent on the casing allows the air to escape from the module.
It must always be connected and must never be closed off,
otherwise the protective function and type of protection are not guaranteed.
connector Assig�nment
2
4
1

Ext
Int
Ext
Int
5
6
Illustration: Pneumatic connections – Fieldbus module PROFIBUS PROFIBUS ®
Legend
1
2
3 Auxiliary control air M5, D6, D4, D1/4“
Pilot exhaust air M5, D6, D4, D1/4“
Exhaust air G1/4“, NPT1/4“, D10 4
5
6 Compressed air supply G1/4“, NPT1/4“, D10
Safety vent M5, D6, D4, D1/4“
Switching between external / internal auxiliary control air
NOTE! Connector 12/14 must be closed for internal auxiliary control air.