WEG CFW300 V1.3X, Programming Manual

Page: 150 / 157

SoftPLC
18-12 | CFW300
18
P921 – Selection of the Source for the PID Controller Process Variable
Adjustable
Range:
1 = Process Variable via Analog Input AI1
2 = Process Variable via Analog Input AI2
3 = Process Variable via Difference between AI1 and AI2
Factory
Setting:
1
Properties:
Description:
This parameter defines the source of the PID controller process variable.
Table 18.8: Description of the source of the PID controller process variable
P921 Description
1 It defines that the control variable source will be the value read by AI1 and viewed in parameter P916
2 It defines that the control variable source will be the value read by AI2 and viewed in parameter P916
3
It defines that the control variable source will be the value read by AI1 minus the value read by AI2, that is, the difference between
AI1 and AI2, and viewed in parameter P916
P922 – Minimum Sensor Level of the PID Controller Process Variable
Adjustable
Range:
-99.99 a 99.99 [SoftPLC Eng. Un.]
Factory
Setting:
0
Properties:
Description:
This parameter defines the minimum value of the sensor connected to the analog input configured for the PID
controller process variable according to its engineering unit.
NOTE!
This parameter will be viewed according to the selection of the parameters for the SoftPLC engineering
unit (P510 and P511).
P923 – Maximum Sensor Level of the PID Controller Process Variable
Adjustable
Range:
-99.99 a 99.99 [SoftPLC Eng. Un.] Factory
Setting:
4.00
Properties:
Description:
This parameter defines the maximum value of the sensor connected to the analog input configured for the PID
controller process variable according to its engineering unit.
NOTE!
This parameter will be viewed according to the selection of the parameters for the SoftPLC engineering
unit (P510 and P511).