SINUS PENTA
PROGRAMMING GUIDE
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C034 (C077, C120) Voltage Preboost for IFD
C077 (Motor 2)
Range
0 ÷ 50
0.0 ÷ 5.0 %
See Table 83 and Table 87
Function
Torque compensation at minimum frequency produced by the drive.
IFD control: determines the increase of the output voltage at 0Hz.
C035 (C078, C121) Voltage Boost 0 at Programmable Frequency
C078 (Motor 2)
Range
–100 ÷ +100 –100 ÷ +100 %
See Table 83 and Table 87
Function
Torque compensation at preset frequency (parameter C035a for motor 1, C078a
for motor 2 and C121a for motor 3).
This parameter defines the output voltage variation at preset frequency in respect
to the frequency r
esulting from the constant V/f ratio (voltage/frequency constant).
It is expressed as a percentage of the nominal motor voltage (C019, C062
C035a (C078a, C121a) Frequency for Boost 0 Application
C078a (mot. n.2)
Range
0 ÷ 99 0 ÷ 99 %
Function
Frequency for the application of the boost preset with parameter C035 for motor 1,
C078 for motor 2 and C121 for motor 3.
It is expressed as a percentage of the nominal motor frequency (C015, C058
C036 (C079, C122) Voltage Boost 1 at Programmable Frequency
C079 (Motor 2)
Range
–100 ÷ +400 –100 ÷ +400 %
See Table 83 and Table 87
Function
Torque compensation at preset frequency (parameter C037 for motor 1, C080 for
motor 2 and C123 for motor 3). Determines how out
put voltage varies at preset
frequency with respect to voltage obtained with a constant V/f pattern (constant
voltage frequency).
It is expressed as a percentage of the nominal motor frequency
(C019, C062, C105)