Weidmüller 610 - Configuration (Continued); Mean Value; Minimum and Maximum Values; Mains Frequency (addr. 034)

28 2576780000/00/02-2018
Conguration
Mean value
Mean values are formed over an adjustable period for the current,
voltage and power measured values. The mean values are identi-
ed with a bar above the measured value.
The averaging time can be selected from a list of nine xed aver-
aging times.
Current averaging time (addr. 040)
Power averaging time (addr. 041)
Voltage averaging time (addr. 042)
Setting Averaging time/second
0 5
1 10
2 15
3 30
4 60
5 300
6 480 (factory setting)
7 600
8 900
Averaging method
After the set averaging time, the exponential averaging method
used achieves at least 95% of the measured value.
Minimum and maximum values
All measured values are measured and calculated every 10/12 pe-
riods. Minimum and maximum values are determined for most of
the measured values.
The minimum value is the smallest measured value that has been
determined since the last reset. The maximum value is the largest
measured value that has been determined since the last clear-
ance. All minimum and maximum values are compared with the
corresponding measured values and are overwritten if they are
undercut or exceeded.
The minimum and maximum values are stored in an EEPROM
every 5 minutes, without the date and time. This means that if the
operating voltage fails, only the minimum and maximum values of
the last 5 minutes are lost.
Clearing minimum and maximum values (addr. 506)
If “001” is written to the address 506, all minimum and maximum
values are simultaneously cleared.
Mains frequency (addr. 034)
For automatic ascertainment of the mains frequency, an L1-N volt-
age larger than 10 Veff must be applied to the voltage measure-
ment input V1.
The mains frequency is then used to calculate the sampling rate
for the current and voltage inputs.
If there is no measurement voltage, the mains frequency cannot
be determined and thus no sampling rate can be calculated. The
acknowledgeable error message “500” appears.
The voltage, current and all other resulting values are calculated
based on the previous frequency measurement and possible ca-
ble-connecting sockets and continue to be displayed. However,
these derived measured values are no longer subject to the speci-
ed accuracy.
If it is possible to re-measure the frequency, then the error mes-
sage will disappear automatically after a period of approx. 5 sec-
onds once the voltage has been restored.
The error is not displayed if a xed frequency has been congured.
Adjustment range: 0 or 45 to 65
0 = automatic frequency determination
The mains frequency is determined from the
measurement voltage.
45 to 65 = xed frequency
The mains frequency is preselected.
Energy meter
The Energy Meter 610/610-PB has energy meters for active en-
ergy, reactive energy and apparent energy.
Reading the active energy
Total active energy
Fig.: The active energy in this example is: 12 345 678 kWh
Fig.: The active energy in this example is: 134 178 kWh