PID Controller
CFW500 | 13-9
13
Description:
This parameter allows setting the setpoint of the PID controller by the HMI keys, since P0221 = 0 or P0222 = 0
and if it is operating in the Automatic mode. The value of 100.0 % is equivalent to the full scale of the indication
in P0040 and P0041 given by P0528.
In case the operation is in the Manual mode, the reference via HMI is set in parameter P0121.
The value of P0525 is kept in the last value set (backup) even when disabling or powering down the inverter
when P0536 = 1 (Active).
P0526 – PID Setpoint Filter
Adjustable
Range:
0 to 9999 ms
Factory
Setting:
50 ms
Properties:
Access Groups
via HMI:
Description:
This parameter sets the setpoint filter time constant of the PID controller. It is intended to attenuate sudden
changes in the setpoint value of the PID.
P0527 – PID Action Type
Adjustable
Range:
0 = Direct
1 = Reverse
Factory
Setting:
0
Properties:
Access Groups
via HMI:
Description:
The PID action type must be selected as “direct” when it is necessary that the motor speed be increased to
make the process variable increment. Otherwise, select “Reverse”.
Table 13.3:
Selection of the PID action
Motor Speed (P0002)
Process Variable (P0040)
P0527
Increases
Increases
0 (Direct)
Decreases
1 (Reverse)
This characteristic varies according to the process type, but direct feedback is more commonly used.
In temperature or level control processes, the setting of the kind of action will depend on the configuration. For
example: in the level control, if the inverter acts on the motor that removes liquid from the tank, the action will
be reverse, because when the level rises, the inverter will have to increase the motor speed to make it lower. In
case the inverter acts on the motor that fills the tank, the action will be direct.
P0528 – Process Variable Scale Factor
Adjustable
Range:
10 to 30000
Factory
Setting:
1000
Properties:
Access Groups
via HMI:
HMI
Summary of Contents for CFW500 V1.8X
Page 2: ......
Page 4: ......
Page 8: ...Contents...
Page 34: ...General Information 2 4 CFW500...
Page 38: ...About the CFW500 3 4 CFW500 3...
Page 42: ...HMI and Basic Programming 4 4 CFW500 4...
Page 52: ...Programming Basic Instructions 5 10 CFW500 5...
Page 56: ...Identification of the Inverter Model and Accessories 6 4 CFW500 6...
Page 76: ...Available Motor Control Types 8 4 CFW500 8...
Page 84: ...V f Scalar Control 9 8 CFW500 9...
Page 170: ...Communication 17 8 CFW500 17...
