Parker AC890 Product Manual page 307

Frame g, h & j

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Functional Description

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.

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

ENCODER INVERT

LEAKAGE INDUC

MUTUAL INDUC

ROTOR TIME CONST

Encoder direction

Magnetising current

Per phase stator

Per phase stator leakage

Per phase mutual

Rotor time constant

Parameter is only set up if drive is configured

to run as Closed-loop Vector

Not measured by Stationary Autotune

This is identified from magnetising current

and motor nameplate rpm

890SD Standalone Drive - Frames G, H & J

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