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 with [
▲
] and [
▼
].
Set the minimum limit for each interval in
parameter 23-61 Continuous Bin Data
and
parameter 23-62 Timed Bin Data
. Example: If
selecting
[1] counter
and changing setting from
10% to 12%,
[0] counter
is based on the
interval 0 to <12% and
[1] counter
on interval
12 to <20%.
23-66 Reset Continuous Bin Data
Option:
Function:
[0]
*
Do not
reset
Select
[1] Do reset
to reset all values in
parameter 23-61 Continuous Bin Data
. After
pressing [OK], the setting of the parameter
value automatically changes to
[0] Do not reset
.
[1]
Do reset
23-67 Reset Timed Bin Data
Option:
Function:
Select
[1] Do reset
to reset all counters in
parameter 23-62 Timed Bin Data
.
After pressing [OK], the setting of the
parameter value automatically changes to
[0]
Do not reset
.
[0]
*
Do not
reset
[1]
Do reset
3.20.5 23-8* Payback Counter
The Payback Counter feature can give a rough calculation
of payback if 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 show 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 fixed speed)
(P 23-80)
Rated power for the
motor size used
(P 1-20/21)
Illustration 3.78 Comparison of the Reference Power and
Actual Power
The difference between the reference power at fixed speed
and the actual power yielded with speed control shows
the actual saving.
As value for the fixed speed case, the rated motor size
(kW) is multiplied by a factor (set in %) showing the power
yielded at fixed speed. The difference between this
reference power and the actual power is accumulated and
stored. Read the difference in energy in
parameter 23-83 Energy Savings
The accumulated value for the difference in power
consumption is multiplied by the energy cost in local
currency and the investment is subtracted. Read this
calculation for cost savings in
.
Cost savings=(
∑
(reference power – actual power)) x
energy cost – extra cost.
Breakeven (payback) occurs when the value read in the
parameter turns from negative to positive.
It is not possible to reset the energy savings counter, but
the counter can be stopped any time by setting
parameter 23-80 Power Reference Factor
to 0.
Parameter for settings
Rated motor power
Parameter 1-20 Motor Power
[kW]
Power reference factor in %
Parameter 23-80 Power Reference
Factor
Energy cost per kWh
Investment
Parameters for readout
Energy savings
Parameter 23-83 Energy Savings
Actual power
Cost savings
Table 3.31 Parameter Overview
23-80 Power Reference Factor
Range:
Function:
100 %
*
[0 -
100 %]
Set the percentage of the rated motor size (set
in
parameter 1-20 Motor Power [kW]
or
parameter 1-21 Motor Power [HP]
), which shows
the average power yielded at the time running
with fixed speed (before upgrade with variable
speed control).
Set a value different from 0 to start counting.
23-81 Energy Cost
Range:
Function:
1
*
[0 - 999999.99 ] Set the actual cost for a kWh in local
currency. If the energy cost is changed
later on, it impacts the calculation for the
entire period.
Parameter Description
VLT
®
AQUA Drive FC 202
200
Danfoss A/S © 05/2018 All rights reserved.
MG20OB02
3
3
Summary of Contents for VLT AQUA Drive FC 202
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