FC 300 Design Guide
How to Program
" 1-6* Load Depend. Setting
Parameters for adjusting the load-dependent
motor settings.
1-60 Low Speed Load Compensation
Range:
-300 - 300 %
*
100%
Function:
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 <10Hz
1-61 High Speed Load Compensation
Range:
-300 - 300 %
*
100%
Function:
Enter the % value to compensate voltage in
relation to load when the motor is runnin
gathigh
speed and obtain the optimum U/f characteristic.
The motor size determines the frequency range
within which t his parameter is act
ive.
Motor size Change-over
0.25 kW - 7.5 kW >10Hz
1-62 Slip Compensation
Range:
-500 - 500 %
*
100%
Function:
Enter the % value for slip compensation, to
compensate for tolerances in the valu
eofn
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 M ode is set to Speed closed-loop [1]
or Torque [2] torque control with speed feedback
or when par. 1-01 Motor Con
trol Principle is
set to U/f [0] special motor mode.
1-63 Slip Compensation Time Con stant
Range:
0.05 - 5.00 s
*
0.10s
Function:
Enter the slip compensation reaction speed. A high
value results in slow r
eaction, and a low value
results in quick reaction. If low-frequency resonance
problems arise, use a longer time setting.
1-64 Resonance Dampening
Range:
0-500%
*
100%
Function:
Enter the resonance dampening value. Set
par. 1-64 and par. 1-65 Resonance Dampening
Time Constant to help eliminate high-frequency
resonance problems. To reduce resonance
oscillation, increase the value of par. 1-64.
1-65 Resonance Dampening Time Constant
Range:
5-50msec.
*
5 msec.
Function:
Set par. 1-64 Resonance Dampening and
par. 1-65 to he
lp elim inate high-frequency
resonance problems. Enter the time constant
that provides the best dam pening.
*
default setting ()display text []value for use in communication via serial communication port
166
MG.33.B
6.22 - V LT is a registered Danfoss trademark