9 tuning the velocity loop – ElmoMC SimplIQ Servo Drives Composer User Manual User Manual

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3. In order to define the positive and negative directions for the motor, click either Yes

to accept the present motor direction as positive or click No to change the present
motor direction to negative. The motor will then move back to its starting position
(for subsequent tuning) and the system will store the commutation information. The
following message will be displayed:

4. Click Yes to complete the commutation setup and to continue to the next tuning step.

2.9

Tuning the Velocity Loop

This process enables you to tune the velocity loop and to set an optimal balance between
control gains and precise motion on the one hand; and higher stress, measurement and
quantization noise on the other.

The Composer Wizard enables you to perform this process in three modes:
ƒ

Manual tuning

, in which you manually configure the velocity loop by entering each of

the required parameters.

ƒ

Automatic tuning

, in which you select the level of fine tuning, and let the Wizard

auto-tuner determine the needed parameters automatically.

ƒ

Advanced manual tuning

, in which you create or modify a gain schedule table to

operate with a range of velocities.

ƒ

Auto tune for Speed Design – under Position Loop, ________________________
___________________________________________________________.

When you select Step 3, Tuning Velocity Loop in the Custom dialog box or when you finish
the Establish Commutation step, the Tuning Velocity Loop dialog box is displayed as follows:

Composer User Manual

Using the Wizard

MAN-COMPUM (Ver. 1.9)

2-18

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