Analog input module AI Energy Meter 480VAC/CT HF (6ES7134-6PA00-0CU0)
20 Manual, 07/2018, A5E42674880-AA
Terminal and block diagram
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 AI Energy Meter HF and short-
circuit installed transformers.
Danger to life, dangerous system conditions and material damage possible
Removing and inserting the Al Energy Meter HF under live voltage is prohibited.
If you remove and insert the AI Energy Meter HF under live voltage during operation, the
transformers used can produce dangerous induction voltages and electric arcs and
dangerous system conditions can arise.
The AI Energy Meter HF may only be removed and inserted during operation if the
measuring voltages supplied to the BaseUnit at terminals U
L1
, U
L2
, U
L3
are disconnected at
all poles
special current transformer terminals are used that short-circuit the
transformer on the secondary side on removal.
The AI Energy Meter HF receives its supply voltage via terminals 17 (24 V DC) and 18 (M).
Protecting the connection cables
To protect the connection cables at U
L1
, U
L2
and U
L3
, make sure there is adequate cable
protection, especially after cross-section transitions.
If short-circuit resistance according to IEC 61439-1:2009 is ensured by the design, there is
no need for separate cable protection for the AI Energy Meter HF.
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