KEB COMBIVERT F5-H User Manual

Motor data and controller adjustments of the asynchronous motor
© KEB, 2012-10 COMBIVERT F5-A, -E, -H Page 7.5 - 3
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7.5
Motor data and controller adjustment of the asynchronous motor
The asynchronous motor has two principally different modes of operation:
- V/F characteristic operation
V/f characteristic operation, with SMM (Sensorless Motor Management) for speed stabilisation and miscella-
neous current limiting protective functions
- Vector controlled operation
During vector controlled operation, current and speed are checked by PI controllers.
The controlled operation can be carried out with or without motor model:
- Vector controlled operation without motor model
This mode of operation must be used if the electrical parameters (e.g., inductance) of a motor cannot be
determined by automatic identication.
This operating mode always needs encoder feedback.
- Vector controlled operation with motor model
This operating mode can be used if the electrical parameters of the motor can be determined ("identied")
automatically.
The advantage of this operating mode is a higher torque accuracy compared to the operation without motor
model.
Particularly important for the motor model is the main inductance. This must be calibrated by a ramp-up of the
motor without load torque. For the other data (stator resistance, rotor resistance, leakage inductance), values
from a motor data sheet can be used alternatively.
- Vector controlled operation with motor model without encoder feedback (ASCL)
During vector controlled operation of an asynchronous motor without encoder feedback (Asynchronous Sen-
sorless Closed Loop => ASCL), the speed is estimated with a mathematical model of the asynchronous
machine.
Standard version F5A does not contain operating mode ASCL. It needs the special software F5H.

KEB COMBIVERT F5-H Specifications

General

Brand	KEB
Model	COMBIVERT F5-H
Category	Control Unit
Language	English