Manual Tunings Of Regulator Loops (Test Generator); Test Generator Function - GE AV-300i User Manual

1.4.5 Manual Tunings of Regulator Loops (Test Generator)

The automatic loops tuning (CurrentReg, FluxReg and SpeedReg autotune) is strongly recommended before to
carry out any manual tuning. The manual tunings can be useful to improve the response time of the drive loops.
Using the Test generator function it is possible to carry out the manual tunings.
In the following paragraphs it is described the procedure:
- Manual tuning of the Current regulator
- Manual tuning of the Flux regulator
- Manual tuning of the Speed regulator

1.4.5.1 Test Generator Function

The tuning of the regulators is performed via an internal test signal generator in order to evaluate the regulator
response. This operation requires the use of a digital oscilloscope. The "Test generator" generates signal shaped
as a rectangular wave with a programmable frequency and amplitude.
For each tuning, described in the following= pararagraphs, follow the steps below.
In the REGULATION PARAM menu, scroll Down until Test generator command, then press Enter.
The display will show:
The display will show:
The display will show:
Press Escape two times to return Test gen mode menu.
Scroll Down to:
Set the following parameters:
AV-300i Version 2 User's Guide
Test generator
Test gen mode
Test gen mode
Off
Select new mode
Off
Off
Ramp ref 1
Speed ref 1
Torque ref 2
Magn curr ref
Flux ref
Outvlt lim
then press Enter and wait for the end of "Busy - Please wait...."message.
Test generator
Test gen cfg
Gen hi ref
Gen low ref
Gen period
—————— Function Description ——————
press Enter.
press Enter.
press Enter and scroll Down to select the regulator
input on which the signal must work(see procedures):
off
Ramp reference 1
Speed reference 1
Torque reference 2
Magnetizzant current reference
Flux reference
Voltage reference
press Enter.
Value in count of the higher value
Value in count of the lower value
Period of the square wave
Ch.1
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