ABB ECA06 Configuration And Installation page 171

Chapter 3: Configuration
• Adaptive Control
• Tuning
• Control Signal Limit
Non Auto Mode
Non-Auto mode comprises the following Control modes:
• Manual
• Forced Output
No Feedback
In Non-Auto mode with no feedback, the Out bar graph is 0.0% and the display
shows Inc/Dec signal. The internal variable DeltaU
where ControlSignal
ControlSignal
In Auto-mode with no feedback, the Out bar graph shows 0.0% for the
ControlSignal value. The internal variable DeltaU
Using Feedback
When using Three State Pulse with feedback, there are five different control
modes, see table below.
Manual
mode
Auto-mode
Forced
mode
493-0736-11 (6-2)
= ControlSignal
DeltaU
3P
is the control signal of the current sample and
k
is the control signal of the previous sample.
k-1
DeltaU
In Manual Mode you can increase/decrease the output signal
by pressing the Up/Down buttons. The digital outputs are
activated as long as the button is pressed.
In Auto-Mode the controller works as normal and the
feedback signal is shown on the Output bar graph.
*
If Forced Mode is used (and activated), the controller tries to
force the feedback signal to the selected Forced Value by
activating the Increase/Decrease outputs. This continues until
the Forced Mode is left (not activated).
3.6 Setting the Configuration
is calculated as follows:
3P
– ControlSignal
k
is calculated as follows:
3P
= DeltaU
3P COx
k-1
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