Copley Controls Serial Encoder Podręcznik Użytkownika Pobierz pdf (Strona 116)

Quick Setup with CME 2 Xenus XTL User Guide

108 Copley Controls Corp.

5.9: Current Loop

Initial current loop proportional gain (Cp) and current loop integral gain (Ci) values were calculated in

a previous step. For an introductory overview of the control loops, see

Operating Modes (p. 9).

NOTE: For Copley Controls digital amplifiers, the current loop gain is independent of the power supply

voltage.

5.9.1: Current Loop Settings

For more information, see Current Mode and Current Loop (p. 10).

5.9.1.1 Click I Loop to open the Current Loop screen:

5.9.1.2 Change/verify Current Loop parameters as needed.

Parameter Description

Peak Current Limit Used to limit the peak phase current to the motor. Max value depends upon the amplifier

model; Min value > continuous limit.

T Time Limit Sets I

T Time Limit in mS. See I

T Time Limit Algorithm (p. 145).

Continuous Current Limit Used to limit the Phase Current. Max Value is < Peak Current and depends upon the

amplifier model. Min value: 0

Current Loop Offset Sets current loop offset. Leave it set to zero until after tuning. For more information, see

Offset (p. 10).

Cp Current loop proportional gain. Range 0 – 32,767.

Ci Current loop integral gain. Range 0 – 32,767.

Drive Output

Maximize Smoothness: Amplifier uses circular vector limiting to produce smooth

operation even into the voltage limits.

Maximize Speed: Allows for slightly more of the bus voltage to be used when in the

voltage limit. This may produce a small disturbance at top speed.

Auto Tune See Auto Tune the Current Loop (p. 109).

Bandwidth Measure bandwidth using the Cp and Ci values now in the amplifier.

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