REFUdrive 500 RD51
Basic parameterization
5-13
DOK-RD500*-RD51*******-IB01-EN-P
V/Hz open-loop control
Parameter
No.:
Name
Description / Explanation
selectable options
Factory setting
min ... max values
Pass-
word
0181.00
V/f characteristic Fa
Refer to
Fig. 5-5:
2
0.0 Hz ... (P0182-1
Hz)
0185.00
V/f characteristic Va
1)
2
0 V ... 3000 V
0182.00
V/f characteristic Fb
1)
2
(P0181+1 Hz) ...
(P0183-1 Hz)
0186.00
V/f characteristic Vb
1)
2
0 V ... 3000 V
0183.00
V/f characteristic Fc
1)
2
(P0182+1 Hz) ...
(P0184-1 Hz)
0187.00
V/f characteristic Vc
1)
2
0 V ... 3000 V
0184.00
V/f characteristic Fd
1)
2
(P0183+1 Hz) ...
6000 Hz
0188.00
V/f characteristic Vd
1)
2
The V/Hz characteristic data is calculated from the motor
rating plate data which is entered. The values of the charac-
teristics can then be modified and optimized.
If the rating plate data is re-entered, the calculation is re-
executed, and characterisic data, which was manually en-
tered, is overwritten..
Select the monitor by pressing the button. You can then
visualize the V/Hz characteristic in the “Plots” sub-menu.
0 V ... 3000 V
0541.00
I x R boost
0.00 %
1
Factors for I x R compensation.
IxR compensation is disabled when 0.00% is entered. The I x
R compensation can be used to correct the voltage drop,
which is obtained across the ohmic component of the stator
winding proportional to the apparent current (I-act).
0.00 ... 20.00 %
0540.00
Slip compensation
0.00 %
1
Enter the factors for slip compensation.
Slip compensation is disabled when 0.00% is entered. For
induction motors, the speed loss, which is obtained and
which is approximately proportional to the instantaneous
torque, can be corrected using the slip compensation.
0.00 ... 199.99 %
0562.00
Oscillation damping
0
2
A factor can be entered here for machines which have a
tendency to oscillate. The oscillation damping function coun-
teracts this tendency. Oscillation damping is disabled when a
factor of 0 is entered.
-127 ... 127
F [ H z ]
V [ V ]
V
c / d
F
a
a
b
c
d
F
b
F
c
F
d
V
b
V
a
Fig. 5-5: Diagram V/HZ characteristic
1)
The drive converter calculates the V/HZ characteristic data from the
rating plate data of the motor wich you entered.
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