nord NORDAC FLEX SK 200E Series User Manual page 152

NORDAC FLEX (SK 200E ... SK 235E) – Users Manual for Frequency Inverters
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 : 356 /Anleitungen/El ektr onik /FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P200- P299/Param eter P212 – Sc hl upfkom pens ati on - Informati on PM SM @ 58\m od_1606204181342_14638.docx @ 2695397 @ @ 1
When controlling a PMSM, this parameter determines the voltage of the test signal method
(P330). The required voltage depends on various factors (ambient and motor temperature, motor
size, motor cable length, size of variable frequency drive). If the rotor position identification is not
successful, this parameter can be used to adjust the voltage.
Pos : 357 /Anleitungen/El ektr onik /FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P200- P299/Param eter P213 – Verst. ISD-Regel ung @ 0\m od_1327590323026_14638.docx @ 14925 @ @ 1
ISD ctrl. loop gain
P213
(amplification ISD control)
25 ... 400 % This parameter affects the control dynamics of the VFD current vector control (ISD control). Higher
settings make the controller faster, lower settings slower.
{ 100 }
Depending on the type of application, this parameter can be adjusted to avoid unstable operation
for example.
Pos : 358 /Anleitungen/El ektr onik /FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P200- P299/Param eter P214 – Vorhalt Dr ehm om ent @ 0\mod_1327590368794_14638.docx @ 14926 @ @ 1
Torque precontrol
P214
(torque derivative action)
-200 ... 200 % This function allows a value for the expected torque requirement to be set in the current controller.
This function can be used in lifting gears for better load transfer during startup.
{ 0 }
NOTE:
Pos : 359 /Anleitungen/El ektr onik /FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P200- P299/Param eter P215 – Boost Vorhalt @ 0\mod_1327590415702_14638.doc x @ 14927 @ @ 1
Boost precontrol
P215
(boost derivative action)
0 ... 200 % Only advisable in linear characteristic curves (P211 = 0% and P212 = 0%).
{ 0 } For drives that require a high starting torque, this parameter provides an option for adding an
additional current during the start phase. The operative time is limited and can be selected in
parameter P216 >Boost derivative action time<.
All current and torque current limits that may have been set (P112, P536, P537) are deactivated
during the boost derivative action time.
NOTE:
With active ISD control (P211 and/or P212 ≠ 0%), parameterization of P215 ≠ 0 results in incorrect
control.
Pos : 360 /Allgem ein/Allgem eingültig e Module/---------Seitenumbr uc h k ompakt --------- @ 13\m od_1476369695906_0.doc x @ 2265496 @ @ 1
Pos : 361 /Anleitungen/El ektr onik /FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P200- P299/Param eter P216 – Zei t Boost Vorhalt @ 2\m od_1346931673560_14638.docx @ 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 : 362 /Anleitungen/El ektr onik /FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P200- P299/Param eter P217 – Sc hwi ngungs dämpfung @ 0\m od_1327590520707_14638.docx @ 14929 @ @ 1
152
Information
Information
In clockwise rotary field direction, motor torques are entered with a positive sign, while
regenerative torques are entered with a negative sign. The reverse applies to
counterclockwise rotation.
for boost derivative action: Operative time for increased starting current.
V/f characteristic curve
PMSM
S
S
S
S
BU 0200 en-US-4920
P
P
P
P