Operating Et 200Eco Pn On Grounded Mains - Siemens SIMATIC Distributed I/O ET 200eco PN Operating Instructions Manual

24 V DC supply
The following table identifies requirements you must observe for the 24 V DC supply.
With ...
Buildings
24 V DC supply lines, signal
lines
24 V DC supply
Looping-through of the supply
voltage
Protection against external electrical influences
The table below identifies to what you must pay attention when protecting against electrical
influences or faults.
With ...
all plants or systems in which the
ET 200eco PN is installed
Supply, signal and bus lines
Signal and bus lines
3.2

Operating ET 200eco PN on grounded mains

Introduction
This section provides information about the overall configuration of an ET 200eco PN
distributed I/O device with a grounded power system (TN-S system). The topics covered in
this section are in particular: Disconnecting devices, short-circuit and overload protection in
accordance with DIN VDE 0100 and DIN EN 60204-1.
Supply voltages of the ET 200eco PN
There are 2 voltage supplies:
• 1L+: Non-switched supply voltage (electronics/encoder/load voltage supply)
• 2L+: Switched voltage supply (load voltage supply)
ET 200eco PN
Operating Instructions, 06/2022, A5E01250250-AN
3.2 Operating ET 200eco PN on grounded mains
You must take into account...
External lightning protection
Internal lightning protection
Safe (electrical) isolation of the extra-low voltage (SELV/PELV)
Voltage drop in the case of loop-through (see Chapter Looping
PROFINET and the supply voltage (Page 61))
You must take into account...
The plant or system is EMC-compatible and properly grounded for
the discharge of electromagnetic interference.
The wiring arrangement and installation must be correct.
A cable or wire break must not lead to undefined states of the plant
or of the system.
Take lightning protection measures
(for example, lightning protection ele­
ments)
Wiring
29