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System Manual V2 – MOVITRAC® B
6
PI controller
Project Planning
6.19.2 Setpoint selection
The following settings are possible as the setpoint source. You can select the setpoint
source with parameter P100.
•
Unipolar / Fixed setpoint
: The setpoint zero applies as long as no setpoint is
selected. The FBG setpoint control module can be added to setpoint zero or a fixed
setpoint using P121.
P163/164/165 Setpoint n11/12/13 scales PI controller [0 … 100 %] step width: 0.1 %
P173/174/175 Setpoint n21/22/23 scales PI controller [0… 100 %] step width: 0.1 %
Operation with optional second analog input (e.g. FIO1B)
The setpoint from the AI2 analog input applies as long as no setpoint is selected. The
FBG speed control module can be added to AI1 or a fixed setpoint using P121.
•
RS-485/fixed setpoint
•
SBus 1 / Fixed setpoint
: Specify the setpoint and set it using the following bus
parameters:
P870/871/872 Setpoint description PO1/PO2/PO3 [PI controller setpoint [%]
PO1/PO2/PO3 = 0 ... 2
14
= 0 ... 100 % PI-controller setpoint
Setpoint selection is
always unipolar
. The inverter restricts negative setpoints (e.g.
via RS-485 or SBus) to zero.
•
For all setpoint sources:
The FBG setpoint control module can be added to the
setpoint or a fixed setpoint using P121.
•
The settings
Bipolar / fixed setpoint
,
Motor potentiometer / fixed setpoint
as well
as
Fixed se AI1
and
Fixed setpoint * AI1
do not have any effect. If you set
these, the inverter always specifies the setpoint zero.
•
Frequency input / fixed setpoint
Fixed setpoint selected
AI2
[%]
Fixed
setpoint
[%]
PI controller setpoint [%]
1
0
1
0
Fixed setpoint selected
Fixed
setpoint
[%]
n
set
> 0: CW direction of rotation
n
set
< 0: CCW direction of rotation
PO
setpoint
[%]
PI controller setpoint [%]
100%
0%
Selected fixed setpoint
Fixed
setpoint
[%]
FI1
[%]
1
0
PI controller setpoint [%]
Содержание MOVITRAC MC07B0037-2A3-4-00
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