Siemens SIPART PS2 6DR52xx - Manual (Page 33)

Design and Functional Principle
33
SIPART PS2 Manual
A5E00074631--06
2.7.5 SIA module
The SIA module contains:
S one binary output
S two binary outputs
A collected fault message (see alarme module) is output via the binary
output. The floating digital output is implemented as a self error report-
ing semiconductor output.
The two binary outputs are used to report two mechanically adjustable
limit values (L1, L2) via slot initiators. These two outputs are electrically
independent of the rest of the electronics.
(Slot Initiator Alarm module) Proceed as follows for installation
(figure 2-11, page 28)::
1. Remove all the electrical connections from the motherboard (2).
2. Loosen the two fixing screws (2.1) of the motherboard.
3. Snap out the motherboard by carefully bending the four holders.
4. Insert the SIA module (7) from above until it reaches the upper
circuit board rail of the rack.
5. Push the SIA module into the circuit board rail of the rack approx.
3 mm towards the right.
6. Screw the special screw (7.1) through the SIA module into the axle
of the positioner (Torque: 2 Nm):
CAUTION
The pin pressed into the actuating disc bearing (12) must be adjusted
to just before touching with the special screw. The actuating disc bea-
ring and the special screw must then be turned simultaneously so that
the pins slot into the special screw.
7. Place the insulating cover (10) over the SIA module underneath
the surface of the motherboard at the container wall on one side.
The recesses in the insulating cover must slot into the correspond-
ing lugs on the container wall. Place the insulating cover on the
SIA module by carefully bending the container walls.
8. Snap the motherboard into the four holders and screw it tight again
with the two fixing screws (2.1).
Function
Installation