218 Commissioning
WAGO-I/O-SYSTEM 750 XTR
750-495/040-00x 3-Phase Power Measurement Module 690 V
Manual
Version 1.2.0
Settings for Rogowski coils
If you are using Rogowski coils with the Rogowski version, user scaling cannot
be enabled. Thus, the transformation ratio is always 1:1. Otherwise, incorrect
measured values will result.
•
For “Min./Max. Values,“ enter the undervoltage limit, the overvoltage
threshold and the undercurrent threshold. The phase voltage cannot be
measured directly in the “3-Wire Wye/Delta” measuring topology.
Therefore, the values relate to the line-to-line voltage.
If this value is not reached or is exceeded, an error bit is set in the status
byte of the process image and a red error LED is enabled.
If this value is not reached or is exceeded, an error bit is set in the status
byte of the process image and a red error LED is enabled.
Also specify whether or not the measured min./max values for current,
voltage, power and frequency should be reset automatically after a certain
amount of time. If they should, specify the reset interval.
•
You can make two general settings: the interval setting for the calculation of
the arithmetic mean (in s) and the interval setting for peak value
measurement (in half-waves).