Danfoss VLT Refrigeration Drive FC 103 Programming Manual page 47

Parameter Description
1-59 Flying Start Test Pulses Frequency
Range: Function:
[0] Asynchron: [0-500%]
Control the percentage of the frequency for
the pulses used to detect the motor
direction. Increasing this value reduces the
generated torque. In this mode, 100% means
2 times the slip frequency.
[1] PM non salient: [0-10%]
This parameter defines the motor speed (in
% of nominal motor speed) below which the
parking function (see parameter 2-06 Parking
Current and parameter 2-07 Parking Time
becomes active). This parameter is only
active when parameter 1-70 PM Start Mode is
set to [1] Parking and only after starting the
motor.
3.3.8 1-6* Load Depend. Setting
1-60 Low Speed Load Compensation
This parameter is not visible on the LCP.
Range: Function:
NOTICE
100 % [0 -
*
300 %]
Parameter 1-60 Low Speed Load
Compensation has no effect when
parameter 1-10 Motor Construction = [1]
PM, non-salient SPM.
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]
0.25–7.5
11–45
55–550
Table 3.6 Low Speed Load Compensation
MG16H202
Programming Guide
100%
60%
0%
Illustration 3.9 Low Speed Load Compensation
1-61 High Speed Load Compensation
This parameter is not visible on the LCP.
Range:
100 %
1-62 Slip Compensation
Change-over [Hz]
Range:
<10
<5
0 %
<3–4
Danfoss A/S © 05/2016 All rights reserved.
U
m
Par.1-60
Changeover
Function:
NOTICE
[0 -
*
300 %]
Parameter 1-61 High Speed Load
Compensation has no effect when
parameter 1-10 Motor Construction = [1]
PM, non-salient SPM.
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
1.1–7.5 kW
Function:
NOTICE
[-500 -
*
500 %]
Parameter 1-62 Slip Compensation has no
effect when parameter 1-10 Motor
Construction = [1] PM, non-salient SPM.
Enter the % value for slip compensation to
compensate for tolerances in the value of n
Slip compensation is calculated automatically,
that is on the basis of the rated motor speed
n .
M,N
Par.1-61
3
f
out
Change-over
>10 Hz
.
M,N
45
3