Start-Up - WEG CFW100 Programming Manual

14.1.1 Start-Up

See below the required steps to put the PID controller application into operation.
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NOTE!
For the PID controller application to work properly, it essential to check if the inverter is configured
properly to drive the motor at the desired speed. In order to do so, check the following settings:
Acceleration and deceleration ramps (P100 to P101).
Current limit (P135) for V/f and VVW control modes.
Torque boost (P136 and P137) and slip compensation (P138) if in the V/f control mode.
Configuring the PID Controller Application The PID controller application will be configured according to the
example shown below, where:
The frequency inverter will be configured to operate in the local mode.
Digital input DI1 will be used for the Run/Stop command in local mode.
Digital input DI2 will be used to select the PID to Manual/Automatic.
The PID controller process variable (PV) will be connected to analog input AI1 in the scale of 4-20 mA, where 4
mA is equal to 0 bar and 20 mA is equal to 4.0 bar.
The PID controller control setpoint (SP) will be via HMI (keys).
Line
Fuses
Isolating switch
Figure 14.2: Example of the PID controller application
Pressure
Transducer
DI1 - run / stop
DI2 - manual / automatic PID
Process
Shield
APPLICATIONS
Micro Mini Drives | 14-3
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