Group 3.1.2: Motor Control
Code Parameter Min Max Unit Default ID Description
P3.1.2.1 Control mode 0 1 0 600
0 = U/f Freq ctrl open loop
1 = Speed control open loop
P3.1.2.2 Motor type 0 1 0 650
0 = Induction motor
1 = PM motor
P3.1.2.3 Switching Freq 1.5 Varies kHz Varies 601
Increasing the switching frequency
reduces the capacity of the AC drive. It is
recommended to use a lower frequency
when the motor cable is long in order to
minimize capacitive currents in the cable.
Motor noise can also be minimised using
a high switching frequency.
P3.1.2.4 Identification 0 1 0 631
The automatic motor identification
calculates or measures the motor
parameters that are needed for optimum
motor and speed control.
0 = No action
1 = At standstill
P3.1.2.5 Magnetizing current 0.0 2*IH A 0.0 612
Motor magnetizing current (no-load
current). The values of the U/f parameters
are identified by the magnetizing current if
given before the identification run. If this
value is set to zero, magnetizing current
will be internally calculated.
P3.1.2.6 Motor switch 0 1 0 653
Enabling this function prevents the drive
from tripping when the motor switch is
closed and opened e.g. using flying start.
0 = Disabled
1 = Enabled
P3.1.2.7 Load drooping 0.00 50.00 % 0.00 620
The drooping function enables speed
drop as a function of load. Drooping will
be defined in percent of nominal speed at
nominal load.
P3.1.2.8 Load drooping time 0.00 2.00 s 0.00 656
Load drooping is used in order to achieve
a dynamic speed drooping because of
changing load. This parameter defines
the time during which the speed is
restored to the level it was before the load
increase.
P3.1.2.9 Load drooping mode 0 1 0 1534
0 = Normal; Load drooping factor is
constant through the whole frequency
range
1 = Linear removal; Load drooping is
removed linearly from nominal frequency
to zero frequency
P3.1.2.11 Under Volt. Control 0 1 1 608
0 = Disabled
1 = Enabled
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