Danfoss VLT FCD 330 Design Guide

VLT
®
FCD Series
214
214 Reference function
(REF FUNCTION)
Value:
✭Sum (SUM)
[0]
Relative (RELATIVE)
[1]
External/preset (EXTERNAL/PRESET)
[2]
Function:
It is possible to define how preset references are to
be added to the other references; for this purpose,
use Sum or Relative. It is also possible by using the
External/preset to select whether a shift between ex-
ternal references and preset references is required.
External reference is the sum of the analogue refer-
ences, pulse references and any references from
serial communication.
Description of choice:
If Sum [0] is selected, one of the adjusted preset ref-
erences (parameters 215-218 Preset reference)is
summarized as a percentage of the reference range
(Ref
MIN
- Ref
MAX
), added to the other external refer-
ences.
If Relative [1] is selected, one of the added preset
references (parameters 215-218 Preset reference)is
summarized as a percentage of the sum of present
external references
If External/preset [2] is selected, it is possible via a
digital input to shift between external references or
preset references. Preset references will be a per-
centage value of the reference range.
NB!:
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
215 Preset reference 1 (PRESET REF. 1)
216
216 Preset reference 2 (PRESET REF. 2)
217
217 Preset reference 3 (PRESET REF. 3)
218
218 Preset reference 4 (PRESET REF. 4)
Value:
-100.00% - +100.00%
✭ 0.00%
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
MIN
- Ref
MAX
) or as a per-
centage 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 communi-
cation.
Preset ref., msb
Preset ref. lsb
0 0 Preset ref. 1
0 1 Preset ref. 2
1 0 Preset ref. 3
1 1 Preset ref. 4
Description of choice:
Set the preset reference(s) that is/are to be the op-
tions.
219
219 Catch up/Slow down reference
(CATCH UP/SLW DWN)
Value:
0.00 - 100% of the given reference
✭ 0.00%
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, analogue references, pulse reference
and any references from serial communication.
Description of choice:
If Catch up is active via a digital input, the percent-
age value in parameter 219 Catch up/Slow down
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
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70

Danfoss VLT FCD 330 Specifications

General

Brand	Danfoss
Model	VLT FCD 330
Category	DC Drives
Language	English