5 Parameter
BU 0200 en-US-4920
151
P208
Stator resistance
(stator resistance)
S
P
0.00 ... 300.00
Ω
{ see information }
Motor stator resistance
⇒
Resistance of a phase winding with a three-phase motor.
Has a direct effect on current control of the VFD. Too high a value can lead to overcurrent; too low
a value to low motor torque.
Parameter
P220
can be used for simple measurement. Parameter
P208
can be used for manual
setting or as information about the result of an automatic measurement.
Note
:
For optimum functioning of current vector control, stator resistance must be measured
automatically by the VFD.
Information
Default setting
The default setting depends on the rated VFD output or the setting in
P200
.
Pos : 349 /Anleit ungen/El ektr onik /FU und St art er/5. Par ameter/ Par ameter auflist ung (P000 .. .)/P200- P299/Param et er P209 – Leerlaufstr om @ 41\m od_1586435344079_14638.docx @ 2601246 @ @ 1
P209
No load current
(no load current)
S
P
0.0 ... 1000.0 A
{ see information }
This value is always calculated automatically from motor data if there is a change in parameter
P206
“cos
ϕ
“ and parameter
P203
“Nominal current”.
Note
: If the value is to be entered directly, then it must be set as the last of the motor data. This is
the only way to ensure that the value will not be overwritten.
Information
Default setting
The default setting depends on the rated VFD output or the setting in
P200
.
Pos : 350 /Anleit ungen/El ektr onik /FU und St art er/5. Par ameter/ Par ameter auflist ung (P000 .. .)/P200- P299/Param et er P210 – Statischer Boost @ 0\m od_1327590156790_14638.docx @ 14922 @ @ 1
P210
Static boost
(static boost)
S
P
0 ... 400 %
{ 100 }
Static boost affects the current which generates the magnetic field. This is equivalent to the no-load
current of the respective motor and is therefore load-independent. The no-load current is calculated
using the motor data. The factory setting of 100% is sufficient for typical applications.
Pos : 351 /Anleit ungen/El ektr onik /FU und St art er/5. Par ameter/ Par ameter auflist ung (P000 .. .)/P200- P299/Param et er P211 – Dy namisc her Boost @ 0\m od_1327590224915_14638. docx @ 14923 @ @ 1
P211
Dynamic boost
(dynamic boost )
S
P
0 ... 150 %
{ 100 }
Dynamic boost affects the torque-generating current and is therefore a load-dependent parameter.
The factory setting of 100% is also sufficient for typical applications.
Too high a value can result in overcurrent in the VFD. The output voltage will then rise too sharply
under load. Too low a value will lead to insufficient torque.
Pos : 352 /Anleit ungen/El ektr onik /FU und St art er/5. Par ameter/ Par ameter auflist ung (P000 .. .)/P200- P299/Param et er P211 / P212 – I nf ormation U/ f - Kennlinie @ 58\m od_1606203973609_14638. docx @ 2695360 @ @ 1
Information
V/f characteristic curve
With certain applications, particularly those with high centrifugal mass (e.g. fan drives), it may be
necessary to control the motor with the aid of a U/f characteristic curve. In order to do this, set
parameters
P211
and
P212
each to 0%.
Pos : 353 /Allgem ein/ Allgem eingültig e Module/---------Seitenumbr uc h k ompakt --------- @ 13\m od_1476369695906_0. doc x @ 2265496 @ @ 1
Pos : 354 /Anleit ungen/El ektr onik /FU und St art er/5. Par ameter/ Par ameter auflist ung (P000 .. .)/P200- P299/Param et er P212 – Sc hl upf kom pens ati on @ 0\m od_1327590275572_14638.docx @ 14924 @ @ 1
P212
Slip compensation
(slip compensation)
S
P
0 ... 150 %
{ 100 }
Slip compensation increases the output frequency depending on load in order to keep the DC
asynchronous motor speed approximately constant.
The factory setting of 100% is optimal when using DC asynchronous motors and correct motor data
has been set.
If several motors (different loads or outputs) are run with one VFD, set slip compensation P212 to
0%. This excludes any negative effects. With PMSM motors, the parameter must be left at the
factory setting.
Pos : 355 /Anleit ungen/El ektr onik /FU und St art er/5. Par ameter/ Par ameter auflist ung (P000 .. .)/P200- P299/Param et er P211 / P212 – I nf ormation U/ f - Kennlinie @ 58\m od_1606203973609_14638. docx @ 2695360 @ @ 1
