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Design and method of operation
9
1
10
10
1
Input: Supply air
2
Output: Actuating pressure Y1
3
Display
4
Output: Actuating pressure Y2
5
Operating keys
6.1
Restrictor Y1
*)
6.2
Restrictor Y2
*)
in double--acting actuators
Figure 9
View of the explosion proof version of the positioner
2.3.1 Motherboard
2.3.2 Electrical connections
26
3
2
6.1
-- --
+ +
5
6.2
4
7
Transmission ratio selector
(only possible with positioner open)
8
Adjustment wheel for friction clutch
*)
9
Terminals standard controller
10
Terminals option modules
12
Safety catch
The motherboard contains all the electronic elements such as the CPU,
memory, A/D converter. It also contains the display and the operating
keys.
In addition, the terminal strips for connecting the option modules are
also on the motherboard.
The terminals of the standard controller, the I
module are arranged at the left--hand front edges and offset against
each other in staircase form.
A module cover protects the modules from being pulled out and
prevents incorrect installation.
1
12
7
8
y
--, SIA-- and alarm--option
SIPART PS2 PA Manual
A5E00127926--05
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