Parameter description vacon • 34
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3. PARAMETER DESCRIPTION
Due to its user-friendliness and simplicity of use, the most parameters only require a basic de-
scription which is given in the parameter tables in chapter 2.2.
In this chapter, you will find additional information on certain most advanced parameters.
Should you not find the information you need contact your distributor.
3.1 Motor Settings
P1.1 MOTOR NOMINAL VOLTAGE
Value must be read on motor nameplate. Changing of the value will set the voltage at field
weakening point (P9.2) to value 100%.
P1.2 M
OTOR NOMINAL FREQUENCY
Value must be read on motor nameplate. Changing of the value will set the field weakening
point (P9.1) to same value.
P1.3 M
OTOR NOMINAL SPEED
Value must be read on motor nameplate. Speed must be referred to nominal frequency and
nominal load condition (not synchronous speed).
P1.4 M
OTOR NOMINAL CURRENT
Value must be read on motor nameplate.
P1.5 M
OTOR COS PHI
Value must be read on motor nameplate.
P1.6 C
URRENT LIMIT
Maximum motor current supplied from the drive. This parameter is automatically set equal to
150% of motor nominal current, when P1.4 is modified. If a different limit is wanted, it must be
programmed after setting of P1.4.
P1.7 U/
F CURVE OPTIMIZATION
0: Not used
1: Automatic voltage boost (improves motor torque).
P1.8 M
OTOR CONTROL MODE
0: Frequency control
1: Speed control (sensorless control)
In speed control, the motor slip is compensated.
P1.9 L
OAD DROOPING
This function increases the natural slip of asynchronous motors, by decreasing the output
frequency proportionally to motor torque. Frequency is instead increased if the motor is brak-
ing. This can help the load sharing, when motors driven by different converters are mechani-
cally coupled.
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