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Net frequency (Adr.063)
The net frequency is detected from the measur-
ing voltage of phase 1. The scanning frequency
for the voltage and current inputs is calculated
from the net frequency.
At measurements with very disturbed voltage,
the frequency cannot be detected accurate
enough. Voltage disturbances occur at consum-
ers, which are operated with phase angle modu-
lated power.
For measurements, which show strong distor-
tion, the corresponding net frequency should be
fixed. Distortion of the current have no influence
on frequency detection.
If the measuring voltage is missing, no net fre-
quency can be detected, and no scanning fre-
quency can be calculated. The error message
"500" is displayed and can be confirmed. Volt-
age, current and all resulting values are not cal-
culated and indicated by zero.
If the current shall be measured without meas-
uring frequency, the net frequency must be se-
lected as a fix frequency at UMG96S.
The determination of the net frequency can be
carried out automatically or programmed fixely.
The following settings for the destination of the
net frequency are at your disposal:
0 - Automatical frequency detection
1 - Fix frequency 50Hz
2 - Fix frequency 60Hz
Real energy
The UMG96S has 7 energy meters: Three real
energy meters, three reactive energy meter and
one apperend energie meter.
Sum real en-
ergy
HT/consump-
tion
Sum real
energy
L1
L2
L3
K1
K2
kWh
L1
L2
L3
K1
K2
kWh
Psum = 12 345 678 kWh
Psum (HT) = 134 192 kWh
The changeover of low and high tariff is done
via digital inputs (option).
Decimal points
The decimal points, indicated for energy,
depend on the transformer ratio.
Transformer ratio:
v = vi x vu
Transformer ratio
Indication format
v > 100
### ### ###
v > 10 .. 100
### ### ##.#
v <= 10
### ### #.##
Adr. Bezeichnung
416 Sum real energie, without reverse
runnung stop.
418 Sum reactive energie, inductive.
422 Sum real energie, cosumption or HT.
424 Sum real energie, supply or NT.
426 Sum reactive energie, cap./HT(ind).
428 Sum reactive energie, ind./NT(ind).
430 Sum apperend energie.
Summary of Contents for UMG 96S
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