Santerno Sinus Penta - Page 288

SINUS PENTA
PROGRAMMING GUIDE
288/486
C040 (C083, C126) Voltage Drop at Rated Current
C040 (Motor 1)
C083 (Motor 2)
C126 (Motor 3)
Range
0÷500 0÷50.0%
Default
0
0:Disabled
Level
ADVANCED
Address
1040, 1083, 1126
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.
C041 (C084,C127) Fluxing Ramp Time
C041 (Motor 1)
C084 (Motor 2)
C127 (Motor 3)
Range
40 ÷ 4000 40 ÷ 4000 msec
Default
See Table 82 and Table 86
Level
ENGINEERING
Address
1041, 1084, 1127
Control
VTC and FOC
Function
This parameter indicates the time spent for motor fluxing.
C042 (C085, C0128) Vout Saturation Percentage
C042 (Motor 1)
C085 (Motor 2)
C128 (Motor 3)
Range
10 ÷ 120 10 ÷ 120 %
Default
100
100%
Level
ENGINEERING
Address
1042, 1085, 1128
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
field
weakening.