PROGRAMMING
GUIDE
SOLARDRIVE
PLUS
67
/
107
C040
Voltage Drop at Rated Current
Range
0
500
0
50.0%
Default
0
0: Disabled
Level
ADVANCED
Address
1040
Control
IFD
Function
Defines the voltage increase required to compensate the voltage drop between the inverter and the
motor due to the presence of a filter. The voltage increase is given by:
DeltaV = (
C040
/100) * Vmot * Iout/Imot * fout/fmot, where Iout is the output current, fout is the output
frequency, Vmot, Imot and fmot are the rated motor voltage, rated motor current and rated motor
frequency respectively (parameters
C019
,
C018
and
C015
).
Example:
C040 = 10%
Voltage drop at rated current
C013 = Constant torque
Type of V/f pattern
C015 = 50 Hz
Rated frequency
C019 = 380 V
Rated voltage
C018 = 50 A
Rated current
If the drive output frequency is 25 Hz, it should deliver 190V. When the output current is 40A (
C018
)
the voltage actually produced is
Vout = 190 + ((10/100 * 380) * 40/50 * 25/50) = 190 + 15.2 = 205.2 V.
C042
Vout Saturation Percentage
Range
10
120
10
120 %
Default
100
100%
Level
ENGINEERING
Address
1042
Function
This parameter sets the bus voltage value percent used to generate the output voltage of the drive.
Changes made to this parameter affect the motor performance in terms of flux weakening.
