1. Open the 5.4.2
<Configuration – Operating modes – Pressure control> menu.
2. Use «Up» or «Down» to select the
KP line.
3. Press «Enter».
The setting mode is active.
4 0 0 m b a r
0 8 : 1 5 A M
8 0 ° C
Header
5.4.2 Pressure control
Menu
Source actual pressure
p1,p2
Source set pressure
p1,p2
Local set pressure
1.0bar
KP
1.0rpm / mbar
Active line
KI
1.00rpm / (mbar *s)
Set pressure rise time
0s
4. Press «Up» to incrementally increase the value for
KP and to slightly change the actual pres‐
sure until the system (pressure) continuously compensates.
5. Use «Down» to reduce the
KP value to approximately 40 - 50 % of the currently set value.
6. Press «Enter».
The setting is applied.
7. Use «Up» or «Down» to select the
KI line.
8. Press «Enter».
The setting mode is active.
4 0 0 m b a r
0 8 : 1 5 A M
8 0 ° C
Header
5.4.2 Pressure control
Menu
Source actual pressure
p1,p2
Source set pressure
p1,p2
Local set pressure
1.0bar
KP
1.0rpm / mbar
KI
1.00rpm / (mbar *s)
Active line
Set pressure rise time
0s
9. Press «Up» to incrementally increase the value for
KI until the system (pressure) continuously
compensates.
10. Use «Down» to reduce the
KI value to approximately 70 - 80 % of the currently set value.
11. Press «Enter».
The setting is applied.
12. Press «Escape» repeatedly to leave this menu.
Result The proportional and integral amplification are set.
8.6.5 External speed definition
If the machine runs in
External speed control operating mode, the speed of the drive motor (direct)
and the blower block (indirect) are regulated by an external analog signal in the programmed
speed range between n
min
and n
max
according to the machine's design.
Use the 5.5.1
Current signal AII1.02 menu to set the scaling of the 4–20 mA signal. The galvanic
decoupling of the signal is performed via a buffer amplifier installed in the control cabinet.
8
Initial Start-up
8.6
Operating modes in frequency-controlled machines
No.: 901700 14 E
Service Manual Controller
SIGMA CONTROL 2 BLOWER ≥ 4.0.X
99
