Operating instructions

Installing option modules
5.5 Mechanical limit switch module
SIPART PS2 with and without HART communications
Operating Instructions, 09/2008, A5E00074631-08
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5.5 Mechanical limit switch module
5.5.1 Installing the mechanical limit switch module
WARNING
Zone 2
Use of the mechanical limit switch module in zone 2 is only approved in the "nL" type of
protection.
Function
This module is used to report two limits. These limits are reported using galvanic switch
contacts.
Device features
Figure 5-6 Mechanical limit switch module
The mechanical limit switch module consists of:
● One binary output to display a collective fault message. Compare with the device features
of the alarm unit.
● Two switches to report two mechanically adjustable limits. Both these switches are
electrically independent from the remaining electronic unit.