GE AF-650 GP Programming Manual page 92

[0] * Speed open loop
[1] Speed closed loop
[2] Torque
[3] Process
[4] Torque open loop
H-41 Motor Control Principle
Option:
[0] * U/f
[1] Advanced Vector Control
[2] Flux sensorless
[3] Flux w/ motor feedb
The best shaft performance is normally achieved using either of the two Flux Vector control modes Flux sensorless [2] and Flux with encoder feedback [3].
This parameter cannot be adjusted while the motor is running.
H-42 Flux Motor Feedback Source
Option:
[0] Motor feedback par. H-42
[1] * 24V encoder
[2] Encoder Option Module OPCENC
[3] Resolver Option Module OPCRES
This parameter cannot be adjusted while the motor is running.
H-43 Torque Characteristics
Option:
[0] * Constant torque
[1] Variable torque
[2] Energy Savings CT
This parameter cannot be adjusted while the motor is running.
Enables speed control (without feedback signal from motor) with automatic slip compensation for almost
constant speed at varying loads.
Enables encoder feedback from motor. Obtain full holding torque at 0 RPM.
For increased speed accuracy, provide a feedback signal and set the speed PID control.
Connects the encoder speed feedback signal to the encoder input. Only possible with "Flux with motor
feedback" option, par. H-41 Motor Control Principle.
Enables the use of process control in the frequency converter. The process control parameters are set in
par. groups PI-2# and PI-3#.
Enables the use of torque open loop in Adv. Vector Control mode (par. H-41 Motor Control Principle). The
torque PID parameters are set in par. group PI-1#.
Function:
Select which motor control principle to employ.
special motor mode, for parallel connected motors in special motor applications. When U/f is selected
the characteristic of the control principle can be edited in par. H-55 U/f Characteristic - U and par.
H-56 U/f Characteristic - F.
Voltage Vector Control principle suitable for most applications. The main benefit of Advanced Vector
Control operation is that it uses a robust motor model.
Flux Vector control without encoder feedback, for simple installation and robustness against sudden load
changes.
very high accuracy speed and torque control, suitable for the most demanding applications.
Function:
Select the interface at which to receive feedback from the motor.
A and B channel encoder, which can be connected to the digital input terminals 32/33 only. Terminals
32/33 must be programmed to No operation.
Function:
Select the torque characteristic required.
VT and Automatic Energy Savings are both energy saving operations.
Motor shaft output provides constant torque under variable speed control.
Motor shaft output provides variable torque under variable speed control. Set the variable torque level in
par. SP-40 VT Level.
Automatically optimises energy consumption by minimising magnetisation and frequency via par.
SP-41 Energy Savings Min. Magnetization and par. SP-42 Energy Savings Min. Frequency.
AF-650 GP Programming Guide
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