4.2.6 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 charac-
teristic. The motor size determines
the frequency range within which
this parameter is active.
Motor size
Changeover
0.25–7.5 kW
<10 Hz
130BA046.11
60%
0%
100%
U
m
Changeover
f
out
Par.1-60
Par.1-61
Illustration 4.8 Changeover
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 charac-
teristic. The motor size determines
the frequency range within which
this parameter is active.
Motor size
Changeover
0.25–7.5 kW
>10 Hz
Table 4.4 Changeover Frequency
1-62 Slip Compensation
Range:
Function:
Size
related
*
[-500 -
500 %]
Enter the % value for slip compen-
sation to compensate for tolerances
in the value of n
M,N
. Slip compen-
sation is calculated automatically,
that is on the basis of the nominal
motor speed n
M,N
.
1-62 Slip Compensation
Range:
Function:
This function is not active when
parameter 1-00 Configuration Mode
is set to
[1] Speed closed loop
or
when
parameter 1-01 Motor Control
Principle
is set to
[0] U/f
special
motor mode.
1-63 Slip Compensation Time Constant
Range:
Function:
Size
related
*
[0.05 - 5 s]
NOTICE
Parameter 1-63 Slip Compen-
sation Time Constant
has no
effect when
parameter 1-10 Motor
Construction
=
[1] PM, non-
salient SPM
.
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 Damping
Range:
Function:
Size
related
*
[0 - 1000 %]
NOTICE
Parameter 1-64 Resonance
Dampening
has no effect when
parameter 1-10 Motor
Construction
=
[1] PM
, non-
salient SPM.
Enter the resonance damping value.
Set
parameter 1-64 Resonance
Dampening
and
parameter 1-65 Resonance
Dampening Time Constant
to help
eliminate high frequency resonance
problems. To reduce resonance
oscillation, increase the value of
parameter 1-64 Resonance
Dampening
.
Parameter Descriptions
VLT® AutomationDrive FC 361
42
Danfoss A/S © 03/2019 All rights reserved.
MG06J202
4
4
Summary of Contents for VLT AutomationDrive FC 361
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