Integration of a SITOP 24V power supply in PCS 7
Entry ID: 10948108, V3.2, 01/2019
2.4 SITOP PSE200U
The selectivity and diagnostics modules are the optimum enhancement for all 24V
power supplies to distribute the load current to several feeders and to monitor it.
The module detects an overload or short-circuit in one or more feeders and shuts
them down as needed. This is ensured even on high-resistance lines and in the
case of "creeping" short-circuits. The intact branches continue to supply the SITOP
selectivity modules with 24 V without any interruption or feedback. The sum signal
contact can be evaluated for each selectivity module, but can also be looped
through several modules. For selectivity modules with single channel reporting, the
serial code is decoded by a function block via the status of each output. Both sum
and single channel messages are connected to a digital input of the periphery and
evaluated in the automation system.
You can find detailed information here: SITOP Selectivity module
Figure 2-6
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