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6 - VECTOR REGULATION MODE
49'1329 e
GV3000/SE
6 - 13
U.015
Torque Regulator Integral Gain
Parameter Range:
40.0 to 628.0 radians/second
Default Setting:
200.0
Parameter Type:
Tunable (at rest or during operation)
Refer to:
U.014 Torque Regulator Proportional Gain
Description:
This parameter selects the lead frequency of the PI amplifier in the torque loop.
Remaining description as above for U.014.
This parameter is not used when the drive is programmed for SVC operation.
U.016
Field Weakening Start RPM
Parameter Range:
2-pole motor (U.002=2): 2880 to U.005
4-pole motor (U.002=4): 1440 to U.005
6-pole motor (U.002=6): 960 to U.005
8-pole motor (U.002=8): 720 to U.005
Default Setting:
Power module dependent
Parameter Type:
Configurable (at standby only)
Refer to:
U.002 Motor Poles
U.005 Motor Nameplate RPM
U.017 Motor Top Speed
Description:
This parameter sets the speed at which field weakening begins (RPM at which
motor reaches Motor Nameplate Volts U.007).
Beyond the speed specified in this parameter, torque will be inversely proportional
to speed. Increasing this number will maximize the output voltage and, therefore,
maximize the horsepower.
Lowering this number may improve dynamic performance near base speed.
If field weakening is used and if you change this parameter after performing self-
tuning using parameter U.008, you must repeat the self-tuning procedure.
U.017
Motor Top Speed
Parameter Range:
U.005 to 7200 RPM*
Default Setting:
Power module dependent
Parameter Type:
Configurable (at standby only)
Refer to:
U.002 Motor Poles
U.003 Motor Base Frequency
U.005 Motor Nameplate RPM
P.004 Maximum Speed
Description:
This parameter selects the top speed that the motor can reach.
*To determine the upper limit of U.017, the drive compares the results of two formulas and
uses the lower value:
For
FVC
operation (U.001
≠
SE):
As the maximum field weakening range (U.005/U.017) is
1:4
, the highest setting of
U.017 is
four
times the synchronous speed:
Top speed =
U.002
60
*
120
*
4
or
U.002
120
*
240
For a 4-pole motor with a nameplate base frequency of 60Hz:
Top speed =
U.002
U.003
*
120
*
4
=
4
60
*
120
*
4
= 7200 RPM
Содержание GV3000SE
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