Technical information

23-63 Timed Period Start
Range: Function:
Size related* [ 0 - 0 ] Set the date and time at which the
Trending starts the update of the Timed
Bin counters.
Date format will depend on setting in
0-71 Date Format, and time format on
setting in 0-72 Time Format.
NOTE
The frequency converter has no back up of the clock
function and the set date/time will reset to default
(2000-01-01 00:00) after a power down unless a Real Time
Clock module with back up is installed. Consequently the
logging will be stopped until date/time is readjusted in
0-70 Date and Time. In 0-79 Clock Fault it is possible to
program for a Warning in case clock not has been set
properly, e.g. after a power down.
NOTE
When mounting an Analog I/O MCB 109 option card, a
battery back up of the date and time is included.
23-64 Timed Period Stop
Range: Function:
Size related* [ 0 - 0 ] Set the date and time at which the Trend
Analyses must stop update of the Timed
Bin counters.
Date format will depend on setting in
0-71 Date Format, and time format on
setting in 0-72 Time Format.
NOTE
When mounting an Analog I/O MCB 109 option card, a
battery back up of the date and time is included.
23-65 Minimum Bin Value
Range: Function:
Size
related*
[ 0 -
100. %]
Array with 10 elements ([0]-[9] below
parameter number in display). Press OK and
step between elements by means of
▲
and
▼
buttons on the LCP.
Set the minimum limit for each interval in
23-61 Continuous Bin Data and 23-62 Timed
Bin Data. Example: if selecting counter [1]
and changing setting from 10% to 12%,
counter [0] will be based on the interval 0 -
<12% and counter [1] on interval 12% -
<20%.
23-66 Reset Continuous Bin Data
Option: Function:
[0] * Do not reset
Select Do reset [1] to reset all values in
23-61 Continuous Bin Data.
After pressing OK the setting of the
parameter value will automatically change to
Do not reset [0].
[1] Do reset
23-67 Reset Timed Bin Data
Option: Function:
Select Do reset [1] to reset all counters in
23-62 Timed Bin Data.
After pressing OK the setting of the parameter
value will automatically change to Do not reset
[0].
[0] Do not reset
[1] Do reset
3.21.5 23-8* Payback Counter
The frequency converter includes a feature which can give
a rough calculation on payback in cases where the
frequency converter has been installed in an existing plant
to ensure energy saving by changing from fixed to variable
speed control. Reference for the savings is a set value to
represent the average power yielded before the upgrade
with variable speed control.
130BA259.11
P
Actual power yielded
with variable
speed control
(read P 16-10/11)
Reference power
(at xed speed)
(P 23-80)
Rated power for the
motor size used
(P 1-20/21)
The difference between the Reference Power at fixed
speed and the Actual Power yielded with speed control
represent the actual saving.
As value for the fixed speed case, the rated motor size
(kW) is multiplied with a factor (set in %) representing the
power produced at fixed speed. The difference between
this reference power and the actual power is accumulated
and stored. The difference in energy can be read in
23-83 Energy Savings.
The accumulated value for the difference in power
consumption is multiplied with the energy cost in local
currency and the investment is subtracted. This calculation
for Cost Savings can also be read in 23-84 Cost Savings.
Parameter Description
VLT
®
HVAC Drive Programming Guide
MG11CD02 - VLT
®
is a registered Danfoss trademark 167
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