Settings; Control Parameters Of The Current Controller - Unitek Classic Q1 Series Manual

Settings

5 Settings
5.1

Control parameters of the current controller

- The current control characteristics of the power sections can adjusted.
- The PI characteristics of the controller RVI-1 is set by the 4-position DIP switch S1.
- The PI characteristics of RVI-2 is set by switch S2.
- All switches are closed on delivery of the devices.
- This corresponds to the position for the lowest armature circuit inductance.
- The proportional amplification can be changed via the contacts 1 and 2.
- The integral time constant can be changed via the
contacts 3 and 4
5-2 Q1-Q2-Schalter-Strom-1
Note:
Any current controller optimization must be checked by means of an
oscilloscope.
Measuring point X2 : 111 (REG) against GND
Measured values:
± 2.5 Veff according to type current
± 5 Veff according to peak current
Oscillogram - current adjustment (measured across REG - X2 : 111)
I
P
5-3 Q1-Q2-Oszillogramm-Strom-1
Fig. 1
Optimal adjustment
Some important functions are indicated by LEDs.
Current controller enable (enable) and current command value directions (RVI-1 or RVI-2).
The green LEDs indicate the active states.
Classic Q1
Imax
P
Fig. 2
Amplification too high
S1 od. S2
47K 2
150K 1
47K
P-Anteil
100K
RVI
5-1 Q1-Q2-PI-Strom-1
I
P
Fig. 3
Low P-amplification
0,33µF
4
0,22µF
3
0,22µF
I-Anteil
17