Siemens SIPART PS2 6DR50xx Provozní pokyny stáhnout pdf (Strana 59)

Installing option modules

5.4 Slit initiator alarm module

SIPART PS2 with and without HART communications

Operating Instructions, 09/2007, A5E00074631-07

5.4.2 Installing the slotted initiator alarm unit

Installing the SIA unit

Proceed as follows to install the SIA unit:

1. Disconnect all electrical connections of the motherboard.

2. Unlatch both the fixing screws of the motherboard.

3. Disengage the motherboard by carefully bending the four brackets.

4. Insert the SIA unit from the top up to the upper printed circuit board guide of the module

rack.

5. Slide the SIA unit in the printed circuit board of the module rack approximately 3 mm to

the right.

6. Screw in the special screw through the SIA unit into the positioner shaft. Tighten the

special screw with a torque of 2 Nm.

NOTICE

A pin in the actuating disc bearing is pressed. Align this pin before it touches the special

screw. You must rotate the actuating disc bearing and the special screw simultaneously

so that the pin is inserted into the special screw.

7. An insulating cover is provided over the SIA unit. Place the insulating cover to one side

under the motherboard seat on the container wall. The recesses of the insulating cover

must fit in the corresponding webs of the container wall.

8. Place the insulating cover on the SIA unit by bending the container walls carefully.

9. Engage the motherboard into the four brackets.

10. Fix the motherboard using both the fixing screws.

11. Reestablish all electrical connections between the motherboard and the optional

modules. Connect the motherboard and the optional modules to the ribbon cables

provided. Connect the motherboard and the potentiometer to the potentiometer cable.

12. Using both the screws, fasten the module cover provided. Do not use the standard

module cover.

13. Select the signs that already exist on the standard version of the module cover from the

sign set provided. Affix the selected signs on the installed module cover as per the

standard version.

14. Establish all electrical connections.

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Siemens SIPART PS2 6DR50xx Provozní pokyny Strana 59