Copley Controls Serial Encoder Guida Utente Pagina 112

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Control Loops CME 2 User Guide
112 Copley Controls
11.1: Current Loop Setup and Tuning
Initial current loop proportional gain (Cp) and current loop integral gain (Ci) values can be
calculated with The Calculate Function (p. 54).
Enter basic Current Loop settings
1
Click I Loop to open the Current Loop screen:
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.
I
2
T Time Limit
Sets I
2
T Time Limit in ms. See I2T Time Limit Algorithm (p. 191).
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. 118).
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 Current Loop Auto Tune (p. 115).
Bandwidth
Measure bandwidth using the Cp and Ci values now in the amplifier.
3
Click Close to close screen and save changes to amplifier RAM.
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