Danfoss FC 300

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
Change over
0.25 kW - 7.5 kW < 10 Hz
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 opti-
mum U/f characteristic. The motor size determines the frequen-
cy range within which this parameter is active.
Motor size
Change-over
0.25 kW - 7.5 kW > 10 Hz
1-62 Slip Compensation
Range: Function:
100%
*
[-500 - 500 %] Enter the % value for slip compensation, to compensate for tol-
erances 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 par. 1-00
Configuration Mode
is set to Speed closed loop [1] or Torque [2] Torque control with
speed feedback or when par. 1-01
Motor Control Principle is set
to
U/f [0] special motor mode.
1-63 Slip Compensation Time Constant
Range: Function:
0.10s
*
[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.
FC 300 Programming Guide 2. How to Programme
MG.33.M2.02 - VLT
®
is a registered Danfoss trademark 53
2