Device Description - WAGO SYSTEM 750 User Manual

WAGO-I/O-SYSTEM 750
750-493 3-Phase Power Measurement Module
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Device Description

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The 3-phase power measurement module (also called I/O module) measures the
electrical data in a 3-phase supply network.
The voltages of the three phases are measured via network connection to L1, L2,
L3 and N. The currents are fed to IL1, IL2, IL3 and IN via current transformers.
The μC unit of the I/O module transmits the RMS (root mean square) values into
the process image. Therefore, no high computing power is required from the
controller. For each phase, the active power (P) and the energy consumption (W)
are calculated by the I/O module using the root mean square values of all
measured voltages (V) and currents (I).
For example, both the apparent power (S) and phase shift angle (phi) can easily be
derived from these values.
Thus, the I/O module provides a comprehensive network analysis via the fieldbus.
By means of values such as voltage, current, active and apparent power
consumption or load condition, the operator can regulate the supply to a drive or
machine in the best possible way and protect the installation from damage or
failure.
The I/O modules 750-493 and 750-493/025-000 measure currents up to 1 A and
the modules 750-493/000-001 and 750-493/025-001 measure up to 5 A.
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Manual
Version 1.2.0
Device Description 15