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NOTE
If Sum or Relative is selected, one of the
preset references will always be active. If the
preset references are to be without influence,
they must be set to 0% (factory setting).
215 Preset reference 1 (PRESET REF. 1)
216 Preset reference 2 (PRESET REF. 2)
217 Preset reference 3 (PRESET REF. 3)
218 Preset reference 4 (PRESET REF. 4)
Value:
-100.00% - +100.00%
of the reference range/external reference
Function:
Four different preset references can be programmed
in parameters 215-218 Preset reference.
The preset reference is stated as a percentage of the
reference range (Ref
- Ref
MIN
of the other external references, depending on the
choice made in parameter 214 Reference function.
The choice between preset references can be made
via the digital inputs or via serial communication.
Preset ref., msb
Preset ref. lsb
0
0
1
1
Description of choice:
Set the preset reference(s) that is/are to be the options.
219 Catch up/ Slow down reference
(CATCH UP/SLW DWN)
Value:
0.00 - 100% of the given reference
Function:
In this parameter, the percentage value can be set
which will either be added to or deducted from
the remote-controlled references.
The remote-controlled reference is the sum of preset
references, analog references, pulse reference and
any references from serial communication.
= factory setting. () = display text [] = value for use in communication via serial communication port
54
0.00%
) or as a percentage
MAX
0
Preset ref. 1
1
Preset ref. 2
0
Preset ref. 3
1
Preset ref. 4
0.00%
VLT® 2800 Series
Description of choice:
If Catch up is active via a digital input, the percentage
value in parameter 219 Catch up/Slow down reference
will be added to the remote-controlled reference.
If Slow down is active via a digital input, the percentage
value in parameter 219 Catch up/Slow down reference
will be deducted from the remote-controlled reference.
221 Current limit, I
LIM
(CURRENT LIMIT)
Value:
0 - XXX.X % of par. 105
Function:
In this parameter, the maximum output current I
set. The factory-set value corresponds to the maximum
output current I
. If the current limit is to be used
MAX
as motor protection, set the rated motor current. f
the current limit is set above 100% (the rated output
current of the variable frequency drive, I
frequency drive can only handle a load intermittently,
i.e. for short periods at a time. After the load has been
higher than I
, it must be ensured that for a period the
INV.
load is lower than I
. Please note that if the current
INV
limit is set at a lower value than I
torque will be reduced to the same extent.
Description of choice:
Set the required maximum output current I
223 Warning: Low current, I
(WARN. CURRENT LO)
Value:
0.0 - par. 224 Warning: High current, I
Function:
If the output current falls below the preset limit
I
a warning is given.
LOW
Parameters 223-228 Warning functions are out of
function during ramp-up after a start command and
after a stop command or during stop. The warning
functions are activated when the output frequency
reaches the resulting reference. The signal outputs
can be programmed to give a warning signal via
terminal 46 and via the relay output.
MG.28.A8.22 - VLT is a registered Danfoss trademark
160 %
is
LIM
), the variable
INV.
, the acceleration
INV.
.
LIM
LOW
0.0 A
HIGH
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