Basic Process Controller Settings - Lenze i55AE125B Manual

Configuring the process controller

Basic process controller settings

10.1 Basic process controller settings
The process controller is set in two steps:
1. Basic settings
2. Fine adjustment of the PID controller for an optimum control mode
Basic settings
Based on the default setting, we recommend the following proceeding:
1. Activate PID control: Set the desired operating mode (normal or reverse operation) in
0x4020:001 (P600.01).
2. If the feedback of the variable is to take place via analog input 2 instead of analog input 1:
Set 0x4020:002 (P600.02)
3. Configure used analog input:
Configure input range.
•
Configure setting range for the PID control.
•
Adapt filter time to minimise impacts of the noise on the variable.
•
Set monitoring response to "No response [0]".
•
4Configuration of analog inputs
4. If a (temporary) change-over to a speed-controlled operation is to be possible via a digital
input:
Assign a free digital input to the control function "Deactivate PID controller" in
•
0x2631:045 (P400.45). As long as the digital input provides a TRUE signal, the PID con-
trol is ignored and the motor is driven in a speed-controlled way.
Set acceleration time
•
(P606.02) for speed-controlled drive control.
5. Select the standard setpoint source for the reference value in
• Functions for setpoint change-over can be used as well.
The keypad setpoint can be preset in
•
If process controller presets are used, they have to be set in
•
0x4022:008 (P451.08).
• If the analog input is used as setpoint source, it must be configured accordingly.
figuration of analog inputs
If the motor potentiometer is used as setpoint source, this function must be configured
•
accordingly. 4Motor potentiometer setpoint source (MOP)
6. Set the speed range to be controlled in
7. If the output value of the process controller is to be limited, adapt the following parame-
ters:
0x4020:005 (P600.05): Min speed limit
•
0x4020:006 (P600.06): Max speed limit
•
8. Try out the following parameters with the default setting and only adapt them if required:
0x404B (P604.00): Setpoint ramp
•
0x404C:001 (P607.01): Acceleration time for showing the process controller influence
•
0x404C:002 (P607.02): Deceleration for hiding the process controller influence
•
9. Diagnostics: Check current reference value and feedback of the variable:
The current reference value (setpoint) is displayed in
•
The current variable (actual value) is displayed in
•
After the basic setting of the process controller has been carried out, a fine adjustment of the
PID controller must be executed for an optimum control mode (see the following section).
408
= "analog input 2 [2]".
^ 597
0x4021:001 (P606.01) and deceleration time
0x2601:002
^ 597
0x4020:003 (P600.03).
0x4021:002
0x2860:002 (P201.02).
4Setpoint change-over
(P202.02).
0x4022:001 (P451.01)
^ 559
0x401F:001 (P121.01).
0x401F:002 (P121.02).
^ 546
...
4Con-