14
APPLICATIONS
P930 - Automatic Adjustment of the PID Controller Setpoint
Range: 0 = P911 inactive and P918 inactive
1 = P911 active and P918 inactive
2 = P911 inactive and P918 active
3 = P911 active and P918 active
Description:
This parameter defines if the PID controller setpoint in automatic mode (P911) and/or in manual mode (P918) will
be automatically changed or adjusted when the PID controller operation mode changes.
Table 14.10: Description of the PID controller setpoint automatic adjustment
P930 Description
0
It defines that, in the transition of the PID controller operation mode from manual to automatic, the control setpoint value (P911)
will not be uploaded with the present value of the control process variable (P916), and, in the transition of the PID controller
operation mode from automatic to manual, the setpoint value of the PID controller in manual mode (P918) will not be
uploaded with the present value of the motor speed (P002)
1
It defines that, in the transition of the PID controller operation mode from manual to automatic, the control setpoint value (P911)
will be uploaded with the present value of the control process variable (P916), and, in the transition of the PID controller operation
mode from automatic to manual, the setpoint value of the PID controller in manual mode (P918) will not be
uploaded with the present value of the motor speed (P002)
2
It defines that, in the transition of the PID controller operation mode from manual to automatic, the control setpoint value (P911)
will not be uploaded with the present value of the control process variable (P916), and , in the transition of the PID controller
operation mode from automatic to manual, the setpoint value of the PID controller in manual mode (P918) will be uploaded
with the present value of the motor speed (P002)
3
It defines that, in the transition of the PID controller operation mode from manual to automatic, the control setpoint value (P911)
will be uploaded with the present value of the control process variable (P916), and , in the transition of the PID controller
operation mode from automatic to manual, the setpoint value of the PID controller in manual mode (P918) will be uploaded
with the present value of the motor speed (P002)
✓
NOTE!
The adjustment of the control setpoint in automatic mode is only valid when the control setpoint
source is HMI or communication networks (P920 = 0) or via the Electronic Potentiometer Function
(P920 = 3). For other control setpoint sources, the automatic adjustment is not executed.
P931 - Proportional Gain
P932 - Integral Gain
P933 - Derivative Gain
Range: 0.00 to 99.99
Description:
These parameters define the gains of the PID controller and must be set according to the magnitude or process
that is being controlled.
✓
NOTE!
Table 14.3 on page 14-4 suggests setting values for the gains according to the process to be
controlled by the PID controller.
Micro Mini Drives | 14-13
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