Operating The Et 200Isp With Equipotential Bonding - Siemens SIMATIC ET 200iSP Operating Instructions Manual

6.2

Operating the ET 200iSP with equipotential bonding

Components and protective measures
When setting up a system, various components and protective devices are mandatory. The types
of components and the degree to which the protective measures are mandatory depend on the
DIN VDE regulation that applies to your plant setup. The table below relates to the schematic that
follows.
Table 6-5
Compare
Shutdown device for
controllers, transducers
and actuators
Short-circuit and over‐
load protection
Safety isolation
Reliable electrical isolation is required with modules that are powered with voltages ≤ DC 60 V
or AC 250 V, in other words, the supply voltage of the ET 200iSP must be reliably electrically
isolated.
ET 200iSP with ungrounded reference potential
With the ET 200iSP, the reference potential M of the supply voltage is not connected to the
functional ground (mounting rail, connection equipotential bonding on the terminal module).
ET 200iSP
Operating Instructions, 11/2022, A5E00247483-AK
DC 24V supply in the safe area
Relates to figure
(1)
(2)
6.2 Operating the ET 200iSP with equipotential bonding
DIN VDE 0100
...Part 460: Main switch ...Part 1: Disconnector
...Part 725: Single-pole
protection of circuits
Wiring
DIN VDE 0113
...Part 1: With a grounded
secondary circuit: single-
pole protection
121