Danfoss VLT AQUA Drive FC 200 Programming Manual page 168

Parameter Description
23-53 Energy Log
Array [31]
Range:
3 3
0 [0 -
4294967295 ]
*
NOTICE!
All counters are automatically reset when changing the
setting in 23-50 Energy Log Resolution. At overflow, the
update of the counters will stop at maximum value.
NOTICE!
When mounting an Analog I/O MCB 109 option card, a
battery backup of the date and time is included.
23-54 Reset Energy Log
Option:
[0] Do not reset
[1] Do reset
3-142
VLT
Function:
Array with a number of elements equal to
the number of counters ([00]-[xx] below
parameter number in display). Press [OK] and
▲
Step between elements with [
Array elements:
Figure 3.62
Data from latest period is stored in the
counter with the highest index.
At power-down, all counter values are stored
and resumed at next power-up.
Function:
Select [1] Do reset to reset all values in the
Energy Log counters shown in 23-53 Energy
Log. After pressing OK, the setting of the
parameter value will automatically change to
[0] Do not reset.
MG20O622 - VLT
®
AQUA Drive Programming Guide
3.20.4 23-6* Trending
Trending is used to monitor a process variable over a
period of time and record how often the data falls into
each of ten user-defined data ranges. This is a convenient
tool to get a quick overview indicating where to focus on
improvement of operation.
▼
] and [ ].
Two sets of data for Trending can be created to make it
possible to compare current values for a selected
operating variable with data for a certain reference period,
for the same variable. This reference period can be pre-
programmed (23-63 Timed Period Start and 23-64 Timed
Period Stop). The two sets of data can be read from
23-61 Continuous Bin Data (current) and 23-62 Timed Bin
Data (reference).
It is possible to create trending for following operation
variables:
- Power
- Current
- Output frequency
- Motor Speed
The trending function includes ten counters (forming a
bin) for each set of data containing the numbers of
registrations reflecting how often the operating variable is
within each of ten pre-defined intervals. The sorting is
based on a relative value of the variable.
The relative value for the operating variable is
Actual/Rated * 100%
for Power and Current and
Actual/Max * 100%
for Output Frequency and Motor Speed.
The size of each interval can be adjusted individually, but
default will be 10% for each. Power and current can
exceed rated value, but those registrations will be included
in the 90%–100% (MAX) counter.
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is a registered Danfoss trademark