Lenze E82xVxxxKxxxxx - Manual (Page 258)

Function library
Operating mode
V/f characteristic control
10
l
258 EDS82EV903 EN 3.0
IMPORTANT Possible settings Code
Selection Lenze Name No.
C0015
uSEr
V/f rated
frequency 50.00 7.50 {0.02
Hz}
960.00 l C0015 is calculated and saved
during the motor parameter
identification with C0148.
l The setting applies to all
permitted mains voltages
^ 257
^ 261
C0016
uSEr
V
min
boost а 0.00 {0.01 %} 40.00 а device−dependent
Setting applies to all permitted
mains voltages
^ 257
Set V/f characteristic
Select the V/f characteristic suitable for your application in C0014.
)
Note!
Please observe the following if you operate drives with quadratic V/f
characteristics:
ƒ Great moments of inertia reduce the acceleration of the drive.
ƒ This drive behaviour can be avoided if the linear V/f characteristic is used via
parameter set changeover during acceleration.
Set V/f rated frequency
The V/f rated frequency determines the lead of the V/f characteristic and is a crucial factor
for the motor behaviour in terms of current, torque and power.
ƒ The setting in C0015 applies to all permissible mains voltages.
ƒ The internal mains voltage compensation compensates for fluctuations in mains
voltage during operation so that these need not be considered when setting C0015.
ƒ Depending on the setting in C0015, the maximum output frequency (C0011) may
have to be adapted to be able to cover the entire speed range.
ƒ The V/f rated frequency depends on the rated controller voltage, the rated motor
voltage and the rated motor frequency:
C0015 [Hz] + U [V]
U
r
[V] @ f r
[Hz]
U 400 V for E82xVxxxK4C types
U 230 V for E82xVxxxK2C types
V
r
Rated motor voltage depending on the connection method
according to nameplate data
f
r
Rated motor frequency according to nameplate data
)
Note!
C0015 is calculated during motor parameter identification. The value is saved
automatically.