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Parameter Description
H-58 Flying Start Test Pulses Current
Range:
30 %
[0 -
200 %]
*
3
3
H-59 Flying Start Test Pulses Frequency
Range:
200 %
[0 -
500 %]
*
66
Function:
Set the magnitude of the magnetising current for
the pulses used to detect the motor direction.
Higher values result in more accurate results
when the frequency converter is oversized
compared to the motor. The value range and
function depend on parameter P-20 Motor
Construction:
[0] Asynchron: [0-200%]
Reducing this value reduces the generated
torque. 100% means full nominal motor current.
In this case, the default value is 30%.
[1] PM non salient: [0-40%]
A general setting of 20% is recommended on PM
motors. Higher values can give increased
performance. However, on motors with back EMF
higher than 300 VLL (rms) at nominal speed and
high winding inductance (more than 10 mH) a
lower value is recommended to avoid wrong
speed estimation. The parameter is active when
parameter H-09 Start Mode is enabled.
Function:
NOTICE
See description of parameter F-20 PM
Start Mode for an overview of the relation
between the PM Flying Start parameters.
The parameter is active when
parameter H-09 Start Mode is enabled. The value
range and function depend on
parameter P-20 Motor Construction:
[0] Asynchron: [0-500%]
Control the percentage of the frequency for the
pulses used to detect the motor direction.
Increasing this value reduces the generated
torque. In this mode, 100% means 2 times the
slip frequency.
[1] PM non salient: [0-10%]
This parameter defines the motor speed (in % of
nominal motor speed) below which the parking
function (see parameter B-06 Parking Current and
parameter B-07 Parking Time becomes active).
This parameter is only active when
parameter F-20 PM Start Mode is set to [1]
Parking and only after starting the motor.
3.6.5 H-6# Load Depend. Setting
H-61 High Speed Load Compensation
This parameter is not visible on the LCP.
Range:
100 %
[0 -
*
300 %]
H-64 Resonance Dampening
Range:
100
[0 -
%
500 %]
*
H-65 Resonance Dampening Time Constant
Range:
5 ms
[5 - 50
*
ms]
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Function:
NOTICE
Parameter H-61 High Speed Load
Compensation has no effect when
parameter P-20 Motor Construction = [1]
PM, non-salient SPM.
Enter the % value to compensate voltage in
relation to load when the motor is running at
high speed, and obtain the optimum U/f
characteristic. The motor size determines the
frequency range within which this parameter
is active.
Motor size
Change-over
1.1–7.5 kW
> 10 Hz
Function:
NOTICE
Parameter H-64 Resonance Dampening has
no effect when parameter P-20 Motor
Construction=[1] PM, non-salient SPM.
Enter the resonance damping value. Set
parameter H-64 Resonance Dampening and
parameter H-65 Resonance Dampening Time
Constant to help eliminate high frequency
resonance problems. To reduce resonance
oscillation, increase the value of
parameter H-64 Resonance Dampening.
Function:
NOTICE
Parameter H-65 Resonance Dampening
Time Constant has no effect when
parameter P-20 Motor Construction = [1]
PM, non-salient SPM.
Set parameter H-64 Resonance Dampening and
parameter H-65 Resonance Dampening Time
Constant to help eliminate high frequency
resonance problems. Enter the time constant
that provides the best dampening.
DET-620D
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