2.5.2 Process PID Control
The process PID control can be used to control application parameters that can be measured by a sensor (i.e. pressure,
temperature, flow) and affected by the connected motor through a pump, fan, or other connected devices.
shows the control configurations in which the process control is possible. Refer to
chapter 2.3 Control Structures
to
see where the speed control is active.
1-00 Configuration Mode
1-01 Motor Control Principle
U/f
VVC
+
[3] Process
Not Available
Process
Table 2.7 Control Configuration
NOTICE
The process control PID works under the default parameter setting, but tuning the parameters is recommended to
optimise the application control performance.
P 7-30
normal/inverse
PID
P 7-38
*(-1)
Feed forward
Ref.
Handling
Feedback
Handling
% [unit]
% [unit]
%
[unit]
%
[speed]
Scale to
speed
P 4-10
Motor speed
direction
To motor
control
Process PID
130BA178.10
_
+
0%
-100%
100%
0%
-100%
100%
Illustration 2.25 Process PID Control Diagram
Product Overview
Design Guide
32
Danfoss A/S © 09/2014 All rights reserved.
MG06B402
2
2
