Siemens SIPART PS2 6DR50xx Instrucciones de operaciones Pagina 58

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Installing option modules
5.4 Slit initiator alarm module
SIPART PS2 with and without HART communications
58 Operating Instructions, 09/2007, A5E00074631-07
5.4 Slit initiator alarm module
5.4.1 SIA unit
Function
If the standard controller requires electrically independent limit value messages, the slotted
initiator alarm unit with slotted initiators is used instead of the alarm unit.
A binary output is used to display a collective fault message. Compare with the function
of the alarm unit. The floating binary output is implemented as an automatic fault
indicating semiconductor output.
The other two binary outputs are used for the message of two limits L1 and L2 which can
be adjusted mechanically using slotted initiators. Both these binary outputs are
electrically independent from the remaining electronic unit.
Device features
The slotted initiator alarm unit, abbreviated as SIA unit consists of three binary outputs.
Figure 5-5 SIA unit
See also
Safety notes for installing the option modules (Page 49)
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