CleanFit P CPA 472
3 Installation
Hauser
15
3.3.4 Connecting the pneumatic limit switch
(only when equipped accordingly)
Abb. 3.13: Pneumatic limit switch (1 = input, 2= output)
The lower limit switches are for the »Measurement« function and the upper switches for
the »Maintenance« function.
The air lines must have a minimum nominal width of DN 4 mm.
Connect the pneumatic limit switches to the compressed air lines to the assembly con-
trol (see Chapter 3.3.3) as follows:
Abb. 3.14: Connection of the pneumatic lines to the CPA 471 assembly
1 = input, 2 = output
Connect the compressed air lines for the »Measurement« position feedback signal to
the lower limit switch at the connections marked 1 (= inlet) and 2 (= outlet). When the
»Measurement« position is reached, the air applied to inlet 1 is switched through and
can be tapped at connection 2.
Connect the compressed air lines for the »Maintenance« position feedback signal to the
upper limit switch at the connections marked 1 and 2. When the »Maintenance« position
is reached, the air applied to inlet 1 is switched through and can be tapped at connec-
tion 2.
