I/O Module" Tab - WAGO 750-494 Series Manual

WAGO-I/O-SYSTEM 750
750-494 3-Phase Power Measurement Module
For „Min.-/Max. values" specify the thresholds for undervoltage, overvoltage and
overcurrent. Under- resp. overshooting one of these values results in setting an
error bit in the status byte of the process image and activating a red error LED.
Also, define whether the min.-/max. values of current, voltage, power and
frequency are automatically reset after a specific time or not. If yes, set the reset
interval.
Further, two general settings can be done: the time intervals for the calculation of
the arithmetic mean values (in s) and detecting the peak values (in half-waves).
8.1.3

"I/O Module" Tab

On the "I/O Module" tab you can do settings for the entire I/O module. Make general
settings, delete min.-/max. values and configure the energy measurement.
For „General" choose the frequency of the supply grid and the phase for the peak
value measurement (only one phase). You can enable DC measurement and
watchdog. The watchdog deactivates the green status LED A if no process data is
received within 200 ms.
For "Min.-/Max. values" you can reset specific min.-/max. values by selecting
them and clicking [Delete]. This action is executed immediately.
For „Energy" select the scaling factor from the list. The energy values are then
shown accordingly.
Set the interval for cyclically saving the energy values.
At last, you can enter threshold values for measuring active, reactive and apparent
energy. This way creepage currents are ignored. The energy measurement is
interrupted as soon as these thresholds are undershot. The parameters 40, 41 and
42 „NOLOAD" are written.
Manual
Version 1.2.0
Commissioning 85