Endress+Hauser Cleanfit CPA875, Operating Instructions Manual, Page: 15 / 44

Cleanfit CPA875 Installation
Hauser 15
In the "Move from measuring position to service position" state (C), the pressure conditions
in the service chamber must be balanced when moving. The inlet and outlet of the service
chamber are assigned as follows:
• The air is supplied via the inlet (1).
• The air is removed via the outlet (2) (outlet is open).
The drive must be controlled simultaneously with the control of the inlets and outlets
of the "inner service chamber".
The controller for the inlets, outlets and the drive is installed at the place of installation.
It is not included in the delivery for the assembly.
3.2.7 Connecting the limit position switches
a0017831
Fig. 11: Inductive limit position switches
A Limit position switch, Service position
B Limit position switch, Measure position
C Plug, M12, solder side
D Coding
E Plug, pin side
a0022163
Fig. 12: Connecting cable for limit position switch
1 "Measuring" position
2 "Measuring" position
3 "Service" position
4 "Service" position
Only pins 1 and 2 are assigned for manually activated assemblies with one switch
(measuring position).
Signal table for limit position switches
Position of assembly Limit position switch for "measuring"
position Limit position switch for "service"
position
Measuring Active HIGH Active HIGH
Service Active LOW Active LOW