Control Modes (P1300) - Siemens MICROMASTER 440 Operating Instructions Manual

Issue B1
4.4

Control modes (P1300)

The various modes of operation of the MICROMASTER 440 control the relation-
ship between the speed of the motor and the voltage supplied by the inverter. A
summary of the control modes available are listed below:
Ø Linear V/f control,
Can be used for variable and constant torque applications, such as conveyors
and positive displacement pumps.
Ø Linear V/f control with FCC (Flux Current Control),
This control mode can be used to improve the efficiency and dynamic
response of the motor.
Ø Parabolic V/f control
This mode can be used for variable torque loads, such as fans and pumps.
Ø Multi-point V/f control
For information regarding this mode of operation, please consult the MM440
Reference Manual.
Ø Linear V/f control with ECO mode
This feature automatically increases and decreases the motor voltage in order
to search for the minimum power consumption. It is designed to function when
the preset setpoint speed is reached.
Ø V/f control for textile applications
There is no slip compensation or resonance damping. The Imax controller
refers to the voltage instead of frequency.
Ø V/f control with FCC for textile applications
A combination of P1300 = 1 and P1300 = 5.
Ø V/f control with independent voltage setpoint
The voltage setpoint can be given using P1330 independent from the Ramp
Function Generator (RFG) output frequency
Ø Sensorless Vector Control
This feature allows the speed of the motor to be controlled with inherent slip
compensation. It allows for high torque, improved transient response, excellent
speed holding and improved torque at low frequencies. Allows change from
vector control to torque control (see P1501).
Ø Sensoless Vector Torque Control
This feature allows the inverter to control the torque of a motor. In an
application where a constant torque is required, a torque setpoint can be
established and the inverter will vary the current delivered to the motor to
maintain the required torque.
MICROMASTER 440 Operating Instructions
6SE6400-5AC00-0BP0
4 Using the MICROMASTER 440
P1300 = 0
P1300 = 1
P1300 = 2
P1300 = 3
P1300 = 4
P1300 = 5
P1300 = 6
P1300 = 19
P1300 = 20
P1300 = 22
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