Motherboard; Electrical Connections - Siemens PROFIBUS PA SIPART PS2 Manual

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 2-2 View of the explosion-proof version of the positioner

2.2.1 Motherboard

2.2.2 Electrical Connections

SIPART PS2 PA Manual
A5E00127926-03
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 options 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 options modules are
also on the motherboard.
The terminals of the standard controller, the J
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 pre-
vents incorrect installation.
Design and Functional Principle
1 12
7
8
y
-, SIA- and alarm-option
25