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2 Parameter Description
1-61 High Speed Load Compensation
Range:
100 %*
[0 - 300 %]
2
1-62 Slip Compensation
Range:
0 %*
[-500 - 500 %]
1-63 Slip Compensation Time Constant
Range:
Application
[0.05 - 5.00 s]
dependent*
1-64 Resonance Dampening
Range:
100 %*
[0 - 500 %]
1-65 Resonance Dampening Time Constant
Range:
5 ms*
[5 - 50 ms]
2.3.6 1-7* Start Adjustments
Parameters for setting special motor start features.
1-71 Start Delay
Range:
0.0 s*
[0.0 - 300.0 s]
48
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Function:
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
0.25 kW - 7.5 kW
11 kW - 45 kW
55 kW - 550 kW
Function:
Enter the % value for slip compensation, to compensate for tolerances in the value of n
compensation is calculated automatically, i.e. on the basis of the rated motor speed n
Function:
Enter the slip compensation reaction speed. A high value results in slow reaction, and a low value
results in quick reaction. If low-frequency resonance problems arise, use a longer time setting.
Function:
Enter the resonance dampening value. Set par. 1-64
nance Dampening Time Constant
to help eliminate high-frequency resonance problems. To reduce
resonance oscillation, increase the value of par. 1-64
Function:
Resonance Dampening
Set par. 1-64
and par. 1-65
eliminate high-frequency resonance problems. Enter the time constant that provides the best damp-
ening.
Function:
Function at Stop
The function selected in par. 1-80
Enter the time delay required before commencing acceleration.
MG.20.W1.22 - VLT is a registered Danfoss trademark
VLT Automation VT Drive FC322
Programming Guide
Change-over
> 10 Hz
< 5 Hz
< 3-4 Hz
.
M,N
Resonance Dampening
and par. 1-65
Resonance Dampening
.
Resonance Dampening Time Constant
is active in the delay period.
. Slip
M,N
Reso-
to help
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