Danfoss VLT AutomationDrive FC 300, Руководство по программированию

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1-53 Model Shift Frequency
Range: Function:
between Flux model 1 and Flux
model 2; or shift between Variable
Current mode and Flux model 2.FC
302 only.
This parameter cannot be adjusted
while the motor is running.
Flux Model 1 – Flux model 2
This model is used when
1-00 Config-
uration Mode is set to Speed closed
loop [1] or Torque [2] and 1-01 Motor
Control Principle is set to Flux w/motor
feedback [3]. With this parameter it is
possible to make an adjustment of
the shifting point where FC 302
changes between Flux model 1 and
Flux model 2, which is useful in some
sensitive speed and torque control
applications.
P 1-53
130BA146.11
f
out
f
N,M
x 0.125 f
N,M
x 0.1
Flux model 2 Flux model 1
Illustration 3.2 1-00 Configuration
Mode = [1] Speed closed loop or [2]
Torque and 1-01 Motor Control
Principle = [3] Flux w/motor
feedback
Variable Current - Flux model -
Sensorless
This model is used when
1-00 Config-
uration Mode is set to Speed open
loop [0] and 1-01 Motor Control
Principle is set to Flux sensorless [2].
In speed open loop in flux mode, the
speed is determined from the current
measurement.
Below f
norm
x 0.1, the frequency
converter runs on a Variable Current
model. Above f
norm
x 0.125 the
frequency converter runs on a Flux
model.
1-53 Model Shift Frequency
Range: Function:
P 1-53
130BA147.10
x 0.1
Variable
current
model
Flux model 2
f
out
f
N,M
f
N,M
x 0.125
Illustration 3.3 1-00 Configuration
Mode = [0] Speed open loop,
1-01 Motor Control Principle = [2]
Flux sensorless
1-54 Voltage reduction in fieldweakening
Range: Function:
0 V
*
[0 - 100 V] The value of this parameter will reduce the
maximal voltage available for the flux of the
motor in fieldweakning, giving more voltage
available for torque. Be aware that too high
value may give stall problems at high speed.
1-55 U/f Characteristic - U
Range: Function:
Application
dependent
*
[0.0 -
1000.0 V] Enter the voltage at each frequency
point to manually form a U/f charac-
teristic matching the motor.
The frequency points are defined in
1-56 U/f Characteristic - F .
This parameter is an array
parameter [0-5] and is only
accessible when
1-01 Motor Control
Principle is set to U/f [0].
1-56 U/f Characteristic - F
Range: Function:
Application
dependent
*
[Application
dependant] Enter the frequency points to
manually form a U/f-charac-
teristic matching the motor.
The voltage at each point is
defined in
1-55 U/f Characteristic -
U .
This parameter is an array
parameter [0-5] and is only
accessible when
1-01 Motor
Control Principle is set to U/f [0].
Parameter Descriptions FC 300 Programming Guide
MG.33.MB.02 - VLT
®
is a registered Danfoss trademark 39
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