1-62 Slip Compensation
Range:
Function:
Application
dependent
*
[-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
.
This function is not active when
is set to
Speed
closed-loop
[1] or
Torque
[2] Torque
control with speed feedback or when
is set to
U/f
[0]
special motor mode.
1-63 Slip Compensation Time Constant
Range:
Function:
Application
dependent
*
[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
1-65 Resonance Dampening Time Constant
to
help eliminate high-frequency resonance
problems. To reduce resonance oscillation,
.
1-65 Resonance Dampening Time Constant
Range:
Function:
5 ms
*
[5 - 50 ms] Set
and
1-65 Resonance Dampening Time Constant
to
help eliminate high-frequency resonance
problems. Enter the time constant that
provides the best dampening.
1-66 Min. Current at Low Speed
Range:
Function:
100
%
*
[Application
dependant]
Enter the minimum motor current at low
speed, see
.
Increasing this current improves motor
torque at low speed.
1-66 Min. Current at Low Speed
is enabled
when
= Speed
open-loop
[0] only. The adjustable frequency
drive runs with constant current through
motor for speeds below 10 Hz.
1-66 Min. Current at Low Speed
Range:
Function:
For speeds above 10 Hz, the motor flux
model in the adjustable frequency drive
controls the motor.
and / or
automatically adjust
. The parameter with the
highest value adjusts
. The current setting in
is composed of the
torque generating current and the
magnetizing current.
Example: Set
to 100% and set
to 60%.
1-66 Min. Current at Low Speed
automatically adjusts to about 127%,
depending on the motor size.
This parameter is available for the FC 302
only.
1-67 Load Type
Option:
Function:
[0]
*
Passive load For conveyers, fan and pump applications.
[1]
Active load
For hoisting applications, used in slip compen-
sation at low speed. When
Active Load
[1] is
1-66 Min. Current at Low Speed
to a
level which corresponds to maximum torque.
This parameter is available for the FC 302 only.
1-68 Minimum Inertia
Range:
Function:
Application
dependent
*
[Application
dependant]
Needed for average inertia
calculation. Enter the minimum
moment of inertia of the
and
are used for pre-adjustment of the
proportional gain in the speed
This parameter is available for the
FC 302 only.
This parameter cannot be adjusted while motor is running.
Parameter Descriptions
FC 300 Programming Guide
3-20
MG.33.MA.22 - VLT
®
is a registered Danfoss trademark
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