nord NORDAC FLEX SK 200E Series User Manual page 163

Pos : 408 /Anleitungen/El ektr onik /FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P300- P399/Param eter P331 – Umsc haltfrequenz CFC ol @ 21\mod_1524149856108_14638.doc x @ 2417510 @ @ 1
Switch over freq. CFC ol
P331
(Switch over frequency CFC open-loop)
(Former designation: "Switch over freq. PMSM")
5.0 ... 100.0 % Definition of the frequency from which the control method of a PMSM (permanent-magnet
synchronous motor) is activated according to (P300) in operation without encoder. In this case,
{ 15.0 }
100% corresponds to the rated motor frequency from (P201).
The parameter is only relevant for the control method "CFC open-loop" (P300, setting "2").
Pos : 409 /Anleitungen/El ektr onik /FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P300- P399/Param eter P332 – Hysterese Umschaltfrequenz CFC ol @ 21\mod_1524211317202_14638.docx @ 2417550 @ @ 1
Hyst. Switchover CFC ol
P332
(Switchover frequency hysteresis CFC open-
loop)
(Former designation: "Hyst. Switchover PMSM")
0.1 ... 25.0 % Difference between the switch-on and switch-off point in order to prevent oscillation in the
transition from operation without encoder to the control method specified in (P330) (and vice
{ 5.0 }
versa).
Pos : 410 /Anleitungen/El ektr onik /FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P300- P399/Param eter P333 – Flus s-Rück koppl ung CFC ol @ 21\m od_1524211608766_14638.docx @ 2417586 @ @ 1
Flux feedback CFC ol
P333
(Flux feedback CFC open-loop)
(Former designation: "Flux feedb. fact. PMSM")
5 ... 400 % This parameter is necessary for the position monitor in CFC open-loop mode. The higher the
value selected, the lower the flux error from the rotor position monitor. However, higher values
{ 25 }
also limit the lower limit frequency of the position monitor. The greater the feedback amplification
selected, the higher the limit frequency and the higher the values that must be set in (P331) and
(P332). This conflict of objectives therefore cannot be resolved simultaneously for both
optimization objectives.
The default value is selected so that it typically does not need to be adjusted for NORD IE4
motors.
Pos : 411 /Anleitungen/El ektr onik /FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P300- P399/Param eter P334 – Geberoffs et PM SM @ 0\mod_1327678017910_14638.docx @ 14961 @ @ 1
Encoder offset PMSM
P334
(PMSM encoder offset)
-0,500 ... 0.500 rev Evaluation of the zero track is needed to operate PMSMs (permanent-magnet synchronous
motors). The zero pulse is then used to synchronize the rotor position. Set parameter (P330) to
{ 0,000 }
"0" or "1".
The value to be set for parameter (P334) (offset between zero pulse and actual rotor position
"zero") must be determined experimentally or included with the motor.
A sticker is typically affixed to motors supplied by NORD on which the setting is specified.
If the information on the motor is specified in °, this must be converted to rev (e.g. 90° =
0.250 rev).
Pos : 412 /Anleitungen/El ektr onik /FU und Starter/5. Par ameter/Par ameter auflistung (P000 ...)/P300- P399/Param eter P334 – Geberoffs et PM SM - Hinw eis N ulls pur [SK 2xx E] @ 6\m od_1429080221496_14638.docx @ 212028 @ @ 1
Note
Pos : 413 /Allgem ein/Allgem eingültig e Module/---------Seitenumbr uc h k ompakt --------- @ 13\m od_1476369695906_0.doc x @ 2265496 @ @ 1
BU 0200 en-US-4920
– The zero track is connected via digital input 1.
– Set parameter P420 [-01] to function 43 "0 track HTL encoder DI1" in order to evaluate the
pulses of the zero track.
5 Parameter
S P
S P
S P
S
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