Technical information

3.3.7 1-6* Load Depend. Setting
1-60 Low Speed Load Compensation
Range: Function:
100 %* [0 - 300
%]
Enter the % value to compensate voltage in
relation to load when the motor is running
at low speed and obtain the optimum U/f
characteristic. The motor size determines the
frequency range within which this parameter
is active.
Motor size [kW] Change over [Hz]
0.25 -7.5 < 10
11-45 < 5
55 -550 < 3-4
NOTE
1-60 Low Speed Load Compensation will not have effect
when 1-10 Motor Construction = [1] PM, non salient SPM.
130BA046.11
60%
0%
100%
U
m
Changeover
f
out
Par.1-60 Par.1-61
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 [kW] Change-over [Hz]
0.25-7.5 > 10
11-45 < 5
55-550 < 3-4
NOTE
1-61 High Speed Load Compensation will not have effect
when 1-10 Motor Construction = [1] PM, non salient SPM.
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
.
NOTE
1-62 Slip Compensation will not have effect when
1-10 Motor Construction = [1] PM, non salient SPM.
1-63 Slip Compensation Time Constant
Range: Function:
Size related* [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.
NOTE
1-63 Slip Compensation Time Constant will not have effect
when 1-10 Motor Construction = [1] PM, non salient SPM.
1-64 Resonance Dampening
Range: Function:
100 %* [0 - 500
%]
Enter the resonance dampening value. Set
1-64 Resonance Dampening and
1-65 Resonance Dampening Time Constant to
help eliminate high-frequency resonance
problems. To reduce resonance oscillation,
increase the value of 1-64 Resonance
Dampening.
NOTE
1-64 Resonance Dampening will not have effect when
1-10 Motor Construction = [1] PM, non salient SPM.
1-65 Resonance Dampening Time Constant
Range: Function:
5 ms* [5 - 50 ms]
Set 1-64 Resonance Dampening and
1-65 Resonance Dampening Time Constant to
help eliminate high-frequency resonance
problems. Enter the time constant that
provides the best dampening.
NOTE
1-65 Resonance Dampening Time Constant will not have
effect when 1-10 Motor Construction = [1] PM, non salient
SPM.
Parameter Description
VLT
®
HVAC Drive Programming Guide
MG11CD02 - VLT
®
is a registered Danfoss trademark 43
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