19
Applications
19-12 | CFW700
Description:
Defines the source of the PID regulator setpoint.
Notes:
“HMI” means that the PID regulator setpoint will be the value of P1025 parameter.
“AI” means that the PID regulator setpoint will come from an analog input. It is necessary to set P0231 (AI1) or
P0236 (AI2) to 5 = Function 1 of the Application in order to enable its operation. The following alarm message
will be displayed in case it is not properly done: “A770: Set AI1 or AI2 for Function 1 of the Application”.
“Serial/USB” means that the setpoint of the PID regulator will be the value of P0683 proportionally referenced
to the percentage value with one decimal point, i.e., 100.0 % corresponds to 1000 in P0683.
“CO/DN/DP” means that the setpoint of the PID regulator will be the value of P0685 proportionally referenced
to the percentage value with one decimal point, i.e., 100.0 % corresponds to 1000 in P0685.
P1018 – PID Feedback Scale
Adjustable
Range:
0.0 to 3000.0
Factory
Setting:
100.0
Properties:
Access groups
via HMI:
SPLC
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
Range:
0.000 to 30.000
Factory
Setting:
P1020=1.000
P1021=0.430
P1022=0.000
Properties:
Access groups
via HMI:
SPLC
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
Summary of Contents for CFW700
Page 2: ......
Page 4: ......
Page 8: ...Summary...
Page 34: ...2 General Information 2 4 CFW700...
Page 38: ...3 About the CFW700 3 4 CFW700...
Page 56: ...7 Starting up and Settings 7 4 CFW700...
Page 58: ...8 Available Control Types 8 2 CFW700...
Page 78: ...10 VVW Control 10 8 CFW700...
Page 158: ...13 Digital and Analog Inputs and Outputs 13 28 CFW700...