Danfoss VLT AQUA Drive FC 200 Programming Manual page 170

Parameter Description
23-63 Timed Period Start
Range:
Size related
*
3 3
NOTICE!
The adjustable frequency drive has no backup 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 backup 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 a warning to be issued if the clock has not been
set properly, e.g., after a power-down.
NOTICE!
When mounting an analog I/O MCB 109 option card, a
battery backup of the date and time is included.
23-64 Timed Period Stop
Range:
Size related
*
NOTICE!
When mounting an Analog I/O MCB 109 option card, a
battery backup of the date and time is included.
23-65 Minimum Bin Value
Range:
Size [ 0 -
related 100 %]
*
23-66 Reset Continuous Bin Data
Option:
[0] Do not reset Select [1] Do reset to reset all values in
[1] Do reset
3-144
Function:
[ 0 - 0 ] Set the date and time at which 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.
Function:
[ 0 - 0 ]
Function:
Array with ten elements ([0]–[9] below
parameter number in display). Press [OK] and
step between elements using [
Set the minimum limit for each interval in
23-61 Continuous Bin Data and 23-62 Timed
Bin Data. Example: if selecting [1] counter
and changing setting from 10% to 12%, [0]
counter will be based on the interval 0 –
<12% and [1] counter on interval 12% –
<20%.
Function:
23-61 Continuous Bin Data. After pressing [OK],
the setting of the parameter value will
automatically change to [0] Do not reset.
MG20O622 - VLT
®
VLT AQUA Drive Programming Guide
23-67 Reset Timed Bin Data
Option:
[0] Do not reset
[1] Do reset
3.20.5 23-8* Payback counter
The VLT
rough calculation on payback in cases where the
adjustable frequency drive 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.
Figure 3.64
The difference between the Reference Power at fixed
speed and the Actual Power yielded with speed control
represent the actual savings.
As value for the fixed-speed case, the rated motor size
(kW) is multiplied with a factor (set in %) representing the
▲ ▼
] and [ ].
power yielded 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.
Cost Savings = (∑ (Reference Power – Actual Power)) *
Energy Cost – Additional Cost
Break even (payback) occurs when the value read in the
parameter turns from negative to positive.
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is a registered Danfoss trademark
Function:
Select [1] Do reset to reset all counters in
23-62 Timed Bin Data.
After pressing [OK], the setting of the
parameter value will automatically change to
[0] Do not reset.
®
AQUA Drive includes a feature which can give a