WEG CFW700 Manual Del Usuario página 34

P1018 – PID Feedback Scale
Adjustable
0.0 to 3000.0
Range:
Properties: -
Access groups SPLC
via HMI:
Description:
Defines how the PID Feedback or Process Variable will be presented in P1012 (as well as
the PID setpoint in P1011), i.e., the full scale of the PID feedback or process variable that
corresponds to 100.0 % in the analog input used as the PID regulator feedback.
The variable will always be with one decimal point "wxy.z", i.e., one place after the dot.
Example: The pressure transducer is a 4-20 mA with 0-25 bar range. Set P1019 to 25.0.
P1020 – PID Proportional Gain
P1021 – PID Integral Gain
P1022 – PID Differential Gain
Adjustable 0.000 to 30.000
Range:
Properties:
-
Access groups
SPLC
via HMI:
Description:
These parameters define the PID regulator application gains and they should be set according
to the application being controlled.
Examples of initial settings for some applications are presented in table 4.1.
Table 4.1 : Recommended settings for the PID regulator gains
Variable
Pneumatic system Pressure
Pneumatic system flow
Hydraulic system Pressure
Hydraulic system flow
Temperature
Level 1 - See note bellow
Keypad (HMI) and Basic Programming
Proportional
P1020
1
1
1
1
2
1 See note below
Factory
Setting:
Factory P1020 = 1.000
Setting:
P1021 = 0.430
P1022 = 0.000
Gains
Integral Derivative
P1021
0.430
0.370
0.430
0.370
0.040
100.0
P1022
0.000
0.000
0.000
0.000
0.000
0.000
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