1-61 High Speed Load Compensation
Range: Function:
100 %* [0 - 300 %] 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
0.25 kW - 7.5 kW > 10 Hz
11 kW - 45 kW < 5 Hz
55 kW - 550 kW < 3-4 Hz
1-62 Slip Compensation
Range: Function:
0 %* [-500 - 500 %] Enter the % value for slip compensation, to compensate for tolerances in the value of n
M,N
. Slip
compensation is calculated automatically, i.e. on the basis of the rated motor speed n
M,N
.
1-63 Slip Compensation Time Constant
Range: Function:
0.10 s* [0.05 - 5.00 s] 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.
1-64 Resonance Dampening
Range: Function:
100 %* [0 - 500 %] Enter the resonance dampening value. Set par.1-64
Resonance Dampening
and par.1-65
Resonance
Dampening Time Constant
to help eliminate high-frequency resonance problems. To reduce reso-
nance oscillation, increase the value of par.1-64
Resonance Dampening
.
1-65 Resonance Dampening Time Constant
Range: Function:
5 ms* [5 - 50 ms] Set par.1-64
Resonance Dampening
and par.1-65
Resonance Dampening Time Constant
to help
eliminate high-frequency resonance problems. Enter the time constant that provides the best damp-
ening.
3.3.6 1-7* Start Adjustments
Parameters for setting special motor start features.
1-71 Start Delay
Range: Function:
0 s* [0.0 - 120.0 s] This parameter refers to the start function selected in par. 1-72
Start Function
.
Enter the time delay required before commencing acceleration.
The parameter is also used for delayed start of compressor functionality in Injection Control. Pa-
rameter 28-91-
Delayed Compressor Start
controls the delayed start feature. If parameter 28-91 is
set then delayed start is activated. If parameter 28-91 is reset then delayed start is deactivated. It
is recommended that the start delay value should be set equal to or greater than default value.
1-72 Start Function
Option: Function:
Select the start function during start delay. This parameter is linked to par. 1-71
Start Delay
.
[0] DC Hold/Motor Preheat Energizes motor with a DC holding current (par. 2-00) during the start delay time.
[1] DC Brake Energizes motor with a DC braking current (par. 2-01) during the start delay time.
[2] * Coast Releases shaft coasted converter during the start delay time (inverter off).
ADAP-KOOL
®
Drive Programming Guide 3 Parameter Description
MG.11.N1.02 - VLT
®
is a registered Danfoss trademark
51
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