Danfoss VLT FC 100 Series Programming Manual page 176

Parameter Description
23-16 Maintenance Text
Range:
0 [0 - 0 ]
*
3.21.3 23-5* Energy Log
The Adjustable frequency drive is continuously accumu-
lating the consumption of the motor controlled, based on
the actual power yielded by the Adjustable frequency
drive.
These data can be used for an Energy Log function
allowing the user to compare and structure the
information about the energy consumption related to time.
There are basically two functions:
- Data related to a pre-programmed period,
defined by a set date and time for start
- Data related to a predefined period back in time,
e.g., the last seven days within the pre-
programmed period
For each of the above two functions, the data are stored in
a number of counters allowing for selecting the time frame
and a split on hours, days or weeks.
The period/split (resolution) can be set in 23-50 Energy Log
Resolution.
The data are based on the value registered by the kWh
counter in the Adjustable frequency drive. This counter
value can be read in 15-02 kWh Counter containing the
accumulated value since the first power-up or latest reset
of the counter (15-06 Reset kWh Counter).
All data for the energy log are stored in counters which
can be read from 23-53 Energy Log.
®
VLT HVAC Drive Programming Guide
Function:
MG11CD22 - VLT ® is a registered Danfoss trademark
Σ kWh
(P 15-02, kWh Counter)
Counter 6
Counter 5
Counter 4
Counter 3
Counter 2
Counter 1
Counter 0
Figure 3.61
Counter 00 will always contain the oldest data. A counter
will cover a period from XX:00 to XX:59 if hours or 00:00 to
23:59 if days.
If logging either the last hours or last days, the counters
will shift contents at XX:00 every hour or at 00:00 every
day.
Counter with highest index will always be subject to
update (containing data for the actual hour since XX:00 or
the actual day since 00:00).
The contents of counters can be displayed as bars on LCP.
Select Quick Menu, Loggings, Energy Log: Trending
Continued Bin / Trending Timed Bin / Trending Comparison.
3 3
Days
3-149