Manual Tuning Of The Current Regulator; Figure 1.4.5.2.1: Output Current (Reaction Time @ 3Ms) Displaying - GE AV-300i User Manual

1.4.5.2 Manual Tuning of the Current Regulator

The manual tuning procedure below, can be used to change the standard response time of current
regulator.
The following procedure is recomended after executing Current Regulator autotune .
Use a 2 channel digital scope.
Connect the probe of the scope, channel 1(CH1), on the XY4/XY5 test points of the regulation card (see Hard-
ware manual, chapter 5.3.1).
Disable the drive: press [O] key (red key) for 2 seconds.
In the REG PARAMETERS/Test generator menu set the following parameters:
Test gen mode
Gen hi ref
Gen low ref
Gen period
N !
OTE
Gen hi ref value is approximate; it depends on the drive size. The setting must corre-
spond to 20% of the Output current (This value can be verified in the STATUS menu).
Enable the drive:
terminal 12 should be active (+24V) and press [I] key (green key). Verify and adjust the step response of the
current regulator looking the leading edge of the Output current (see figure: 1.4.5.2.1).
For tuning, follow the steps below:
- In the REGULATION PARAM/Curr regulator menu, adjust the values of CurrP gain % and CurrI
gain % until the response of current is approximatly 1 ms, without overshoot (see figure: 1.4.5.2.2); optimal
response time of current regulator.
- Disable the drive: press O key (red key) for 2 seconds.
- Set Test gen mode = Off
- In the REG PARAMETERS menu save the settings done via the SAVE PARAMETERS command.
Ch.1
54
= Magn curr ref
=
=
=

Figure 1.4.5.2.1: Output Current (Reaction Time @ 3ms) Displaying

—————— Function Description ——————
GEH-6641E
3000
0
0.1 s