Nord Drivesystems NORDAC FLEX SK 200E Series User Manual page 151

Frequency inverters
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Pos : 356 /Anleitungen/El ektr oni k/FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P200- P299/Parameter P216 – Zei t Boost Vorhalt @ 2\mod_1346931673560_14638.doc x @ 42281 @ @ 1
Time boost prectrl.
P216
(boost derivative action time)
0.0 ... 10.0 s
This parameter is used for 3 functions:
{ 0.0 }
Time limit
Only in linear characteristic curves (P211 = 0% and P212 = 0%).
Time limit for suppression of pulse switch-off (P537): enables heavy starting.
Time limit for suppression of switch-off on error in parameter (P401), setting { 05 } "0 - 10 V
with switch-off on error 2"
Pos : 357 /Anleitungen/El ektr oni k/FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P200- P299/Parameter P217 – Sc hwi ngungs dämpfung @ 0\mod_1327590520707_14638.doc x @ 14929 @ @ 1
Oscillation damping
P217
(oscillation damping)
0 ... 400 %
No-load resonance vibrations can be damped with oscillation damping. Parameter 217 is a
measure of the damping capacity.
{ 10 }
In oscillation damping the oscillation component is filtered out of the torque current by means of a
high-pass filter. This is amplified by P217 and inverted to the output frequency.
The limit for the applied value is also proportional to P217. The time constant for the high-pass filter
depends on P213. For higher values of P213 the time constant is lower.
With a value of 10% for P217, a maximum of ± 0.045 Hz is applied. With 400% in P217, this
corresponds to ± 1.8 Hz.
The function is not active in "Servo mode, P300".
Pos : 358 /Anleitungen/El ektr oni k/FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P200- P299/Parameter P218 – Modulati onsgrad @ 0\mod_1327590589726_14638.doc x @ 14930 @ @ 1
Modulation depth
P218
(modulation depth)
50 ... 110 %
This setting affects the maximum possible output voltage of the VFD in relation to the line voltage.
Values <100% reduce the voltage to values below that of the line voltage if this is required for
{ 100 }
motors. Values >100% increase the output voltage on the motor. This leads to increased harmonics
in the current and can lead to oscillations in some motors.
Normally this should be set to 100%.
Pos : 359 /Allgemein/Allgemeingültig e Module/---------Seitenumbr uc h kompakt --------- @ 13\mod_1476369695906_0.doc x @ 2265496 @ @ 1
BU 0200 en-US-3118
for boost derivative action: Operative time for increased starting current.
5 Parameter
S
P
S
P
S
151

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