Danfoss VLT FC 100 Series Programming Manual page 49

Hvac drive
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Parameter Description
NOTE!
1-60 Low Speed Load Compensation will not have effect
when 1-10 Motor Construction = [1] PM, non-salient SPM.
3
3
Figure 3.9
1-61 High Speed Load Compensation
Range:
100 %
*
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:
0 %
[-500 - 500 %]
*
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:
Size related
*
s]
NOTE!
1-63 Slip Compensation Time Constant will not have effect
when 1-10 Motor Construction = [1] PM, non-salient SPM.
3-22
Function:
[0 - 300 %]
Function:
Function:
[0.05 - 5.00
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.
MG11CD22 - VLT
®
VLT
HVAC Drive Programming Guide
1-64 Resonance Dampening
Range:
100 %
*
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:
5 ms
*
NOTE!
1-65 Resonance Dampening Time Constant will not have
effect when 1-10 Motor Construction = [1] PM, non-salient
SPM.
1-66 Min. Current at Low Speed
Range:
Size related
NOTE!
1-66 will not have affect if 1-10 =[0]
3.3.8 1-7* Start Adjustments
1-70 PM Start Mode
Option:
[0] Rotor
Detection
[1] Parking
®
is a registered Danfoss trademark
[0 - 500 %]
Function:
[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.
Function:
[ 1. - 200.
Enter the minimum motor current at
*
%]
low speed.
Increasing this current improves
developed motor torque at low speed.
Low speed is defined here as speeds
below 6% of the Nominal Speed of
Motor (1-25 Motor Nominal Speed) in
plus
VVC
PM Control
Function:
Suitable for all applications where the motor
is known to be standing still when starting
(e.g., conveyors, pumps and non-windmilling
fans).
If the motor turns at a slight speed (i.e., lower
than 2‒5% of the nominal speed), e.g., due to
fans with light windmilling, select [1] Parking
and adjust 2-06 DC Brake Current and 2-07 DC
Braking Time accordingly.
Function:

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