Siemens SIPART PS2 6DR50xx Instrukcje Operacyjne Pobierz pdf (Strona 60)

Installing option modules

5.4 Slit initiator alarm module

SIPART PS2 with and without HART communications

60 Operating Instructions, 09/2007, A5E00074631-07

5.4.3 Setting the limits of the slotted initiator alarm unit

Determining the switch status of slotted initiators

You will require a suitable display device to determine the switch status. For example, use

the initiator tester type 2 / Ex by Pepperl + Fuchs.

1. Connect the display device to the following terminals of the SIA unit:

– 41 and 42

– 51 and 52

2. Read the switch status of slotted initiators.

Setting the L1 and L2 limits

Proceed as follows to set the limits:

1. Move the actuator to the first desired mechanical position.

2. Adjust the upper actuating disc manually until the output signal at terminals 41 and 42

changes. Set a high-low or a low-high switchover as follows:

– Rotate the actuating disc beyond the switching point until you reach the next switching

point.

3. Move the actuator to the second desired mechanical position.

4. Adjust the lower actuating disc manually until the output signal at terminals 51 and 52

changes. Set a high-low or a low-high switchover as follows:

– Rotate the actuating disc beyond the switching point until you reach the next switching

point.

Note

The actuating discs are relatively difficult to move. This design prevents their

unintentional movement during operation. You can achieve an easier and finer

adjustment by reducing friction temporarily. Move the actuator to and fro while

simultaneously holding the actuating discs.

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Siemens SIPART PS2 6DR50xx Instrukcje Operacyjne Strona 60