Wiring; Terminal And Block Diagram - Siemens SIMATIC ET 200SP Manual

Wiring

3.1

Terminal and block diagram

In an ET 200SP station, the AI Energy Meter 400VAC ST forms its own potential group
together with its dark BaseUnit.
General safety instructions
Danger to life due to electric shock
Touching live parts can lead to death or severe injuries.
Before beginning any work deenergize the system and the Energy Meter and short-circuit
installed transformers.
Danger to life, dangerous system conditions and material damage possible
Removing and inserting the Energy Meter under live voltage is prohibited! For this reason
the symbol "Do not Hot Swap" is located on the Energy Meter.
If you remove and insert the Energy Meter under live voltage during operation, the
transformers used can produce dangerous induction voltages and electric arcs and
dangerous system conditions can arise.
The Energy Meter may only be removed and inserted during operation if the measuring
voltages supplied to the BaseUnit at terminals U
and special current transformer terminals are used that short-circuit the transformer on the
secondary side on removal.
Use only in three-phase and AC networks
Operation with direct voltage/direct current will destroy the Energy Meter.
Use the Energy Meter solely to measure electrical variables in three-phase and AC
networks.
Supplying the module
The Energy Meter is supplied through the terminals U
voltage amounts to 85 VAC.
16
WARNING
WARNING
CAUTION
, U , U
L1 L2
L1
Analog input module AI Energy Meter 400VAC ST (6ES7134-6PA01-0BD0)
are disconnected at all poles
L3
and N. The required minimum
Manual, 10/2017, A5E36061895-AB
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