Outputs are available for forward as well as reverse direction. The accumulated
energy values can be reset from the local HMI reset menu or with input signal
RSTACC.
The maximum demand values for active and reactive power are calculated for the set
time interval tEnergy. The maximum values are updated every minute and stored in a
register available over communication and from outputs MAXPAFD, MAXPARD,
MAXPRFD, MAXPRRD for the active and reactive power forward and reverse
direction until reset with input signal RSTDMD or from the local HMI reset menu.
P
Q
STACC
RSTACC
RSTDMD
TRUE
FALSE
FALSE
CVMMXN
IEC09000106.vsd
ETPMMTR
P_INST
Q_INST
IEC09000106 V1 EN
Figure 287: Connection of Energy calculation and demand handling function
(ETPMMTR) to the Measurements function (CVMMXN)
15.2.8 Technical data
Table 459: ETPMMTR technical data
Function
Range or value Accuracy
Energy metering MWh Export/Import, MVArh
Export/Import
Input from MMXU. No extra
error at steady load
Section 15 1MRK 502 048-UEN A
Metering
594
Technical manual
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