Danfoss VLT AutomationDrive FC 361, Programming Manual

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1-52 Min Speed Normal Magnetising [Hz]
Range: Function:
Use this parameter along with
parameter 1-50 Motor Magnetisation
at Zero Speed
. See Illustration 4.6 .
1-55 U/f Characteristic - U
Array [6]
Range: Function:
Size
related
*
[0 - 1000 V] Enter the voltage at each frequency
point to form a U/f characteristic
manually matching the motor.
The frequency points are defined in
parameter 1-56 U/f Characteristic - F .
This parameter is an array
parameter [0-5] and is only
accessible when
parameter 1-01 Motor Control
Principle
is set to [0] U/f .
1-56 U/f Characteristic - F
Array [6]
Range: Function:
Size
related
*
[ 0 - 1000.0
Hz] Enter the frequency points to form
a U/f characteristic manually
matching the motor.
The voltage at each point is defined
in
parameter 1-55 U/f Characteristic -
U .
This parameter is an array
parameter [0–5] and is only
accessible when
parameter 1-01 Motor Control
Principle
is set to [0] U/f .
Motor Voltage
Par 1-55 [x]
Output Frequency
Par 1-56 [x]
1-55[5]
1-55[4]
1-55[3]
1-55[2]
1-55[1]
1-55[0]
1-56
[0]
1-56
[1]
1-56
[2]
1-56
[3]
1-56
[4]
1-56
[5]
130BA166.10
Illustration 4.7 U/f Characteristic
1-58 Flying Start Test Pulses Current
Range: Function:
Size
related
*
[ 0 - 200 %]
NOTICE
This parameter is only
available in VVC
+
.
NOTICE
This parameter has effect on
PM motors only.
Sets the current level for the flying
start test pulses that are used to
detect the motor direction. 100%
means I
m,n
. Adjust the value to be
high enough to avoid noise
influence, but low enough to avoid
affecting the accuracy (current must
be able to drop to 0 before the
next pulse). Reduce the value to
reduce the generated torque.
Default is 30% for asynchronous
motors, but may vary for PM
motors. For adjusting PM motors,
the value tunes for back EMF and
d-axis inductance of the motor.
1-59 Flying Start Test Pulses Frequency
Range: Function:
Size
related
*
[ 0 - 500 %] Asynchronous motor: Set the
frequency of the flying start test
pulses that are used to detect the
motor direction. For asynchronous
motors, the value 100% means that
the slip is doubled. Increase this
value to reduce the generated
torque.
For synchronous motors, this value
is the percentage n
m,n
of the free-
running motor. Above this value,
flying start is always performed.
Below this value, the start mode is
selected in
parameter 1-70 Start
Mode
Parameter Descriptions Programming Guide
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