Parker AC890PX Series, Инженерный справочник

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A p p e n d i x D : P r o g r a m m i n g
D-15
AC890PX AC Drive
Functional Description
IMPORTANT
You MUST carry out an Autotune if you intend to use the drive in either of the two vector control modes. If you are using
it in Volts/Hz control an Autotune is not necessary.
Autotune can only be initiated from the “stopped” condition. When the test is complete, the stack is disabled and ENABLE is
set to FALSE.
NOTE Refer to the Chapter 4/5: The Autotune Feature for details on how to perform an Autotune.
Standard Autotune (MODE = 0 or 1)
The Standard Autotune feature identifies and loads values into the parameters below. These are in the MOTOR INDUCTION
function block and also accessible via the QUICK SETUP menu (ENCODER INVERT is in the ENCODER function block).
Autotune will overwrite any previous entry made for these parameters.
Parameter Description Note
ENCODER INVERT Encoder direction Parameter is only set up if drive is configured to run
as Closed-loop Vector
Not measured by Stationary Autotune
MAG CURRENT Magnetising current Not measured by Stationary Autotune
STATOR RES Per phase stator resistance
LEAKAGE INDUC Per phase stator leakage
inductance
MUTUAL INDUC Per phase mutual inductance
ROTOR TIME CONST Rotor time constant This is identified from magnetising current and motor
nameplate rpm
•
The Stationary autotune sequence does not rotate the motor and requires the correct value of MAG CURRENT to be
entered.
•
The Rotating autotune sequence rotates the motor up to the user-programmed MAX SPEED (SETPOINT SCALE
function block) in order to identify these parameters.