WEG CFW700 Serie Manual Del Usuario página 42

Motor Speed
Increases
This characteristic varies with the process type, but direct feedback is most used.
For temperature control or level process, the selection of the action type will depend on the
configuration.
Example: if the inverter runs the motor that removes fluid from the reservoir in a control level,
the action type is reverse as the inverter should increase the motor speed in order to decrease
the level of fluid. In case the inverter is running the motor that is adding fluid in the reservoir,
the action type is direct.
P1025 - PID Setpoint via Keypad Keys (HMI)
Adjustable 0.0 to 100.0 %
Range:
Properties:
-
Access Groups
SPLC
via HMI:
Description:
This parameter allows the adjustment of the control setpoint of the PID Controller through the
keypad keys, since P1016 = 0 and it is operating in Auto mode. If the operation is in Manual
mode, the keypad reference is set in P0121.
The value of P1025 is kept with the last value set (backup) even after disabling or resetting
the inverter (with P1027 = 1 - Active).
P1026 - Automatic Setting of the PID Setpoint via Keypad (P1025)
Adjustable
0 = Inactive
Range:
1 = Active
Properties: cfg
Access Groups SPLC
via HMI:
Description:
When the control setpoint of the PID Controller is done via the keypad (P1016 = 0) and P1026
is 1 (active), when switching from manual to automatic, the percentage value of the manual
setpoint that corresponds to the PID Controller output from 0.0 to 100.0 % will be loaded at
P1025. It avoids PID oscillations when switching from manual to automatic.
Table 4.2: Selecting the PID action type
Process Variable
Increases
Decreases
Keypad (HMI) and Basic Programming
Selection
Direct
Reverse
Factory
Setting:
Factory
Setting:
0.0 %
1
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