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5 Energy Management
5.1 Load-Profile Determination
5.1.5.2 Special Conditions and Effects on the Load Profile
Device Restart
If a functional battery is installed in SICAM Q100, the existing load-profile records are kept unchanged.
Resetting the Device Clock
Resetting the device clock does not affect the load-profile recording. The historical load profiles with a date in
the future do not prevent resetting the device clock.
Failure of the Measuring Voltage
Failure of the measuring voltage does not affect the load profile.
Failure and Return of the Supply Voltage
When the supply voltage returns after a temporary failure, SICAM Q100 records shortened measuring periods.
Interpolated values are not written for load-profile data which were not recorded during the period.
Effect of Tariff Change
The low-to-high tariff change has an effect on the load profile since all values stored in the load profile have
been assigned to the valid tariff in a unique way.
The current period keeps the old tariff up to the period end. The new tariff will be effective from the starting time
of the subsequent period. The power meters of SICAM Q100 change to the other tariff after the current mea-
suring period.
Additional Information on the Load-Profile Data
SICAM Q100 determines the following additional information for every period (siehe System manual
SICAM Q100, chapter 2, Load profile - Management):
•
LOADPROFILE_FLAG_QUALITY_SYNC
SICAM Q100 triggered the period end prematurely due to a synchronization irregularity. As long as the
time has not been determined, the flag is set. The time can be undefined if the battery could not buffer the
time, for example, due to discharged battery.
•
LOADPROFILE_FLAG_QUALITY_AUXPOWER_FAIL
The device triggered the period end prematurely due to supply-voltage failure.
•
LOADPROFILE_FLAG_QUALITY_UNSECURE
The load-profile data are unsafe. Reasons are:
Measuring current or measuring voltage are outside the specified range.
The type of reactive power was changed.
The additional information is stored with the other load-profile data and can be retrieved via the communication
interfaces.
86
SICAM Q100, 7KG95xx, Device Manual
E50417-H1040-C522-A4, Edition 03.2018
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