Parameter Group 3 - Pid Control; Parameter Group 4 - High Performance Motor Control - Invertek Optidrive VTC User Manual

6.3. Parameter Group 3 – PID Control
Par. Description
P3-01 Proportional gain
Integral time
P3-02
constant
Differential time
P3-03
constant
PID operating
P3-04
mode
PID Setpoint /
P3-05
reference select
PID digital
P3-06
reference
PID controller high
P3-07
limit output
PID controller low
P3-08
limit output
User PID output
P3-09 limit / function
control
PID feedback
P3-10
source select
6.4. Parameter Group 4 – High Performance Motor Control
Par. Description
P4-01 Reserved
Motor parameter
P4-02
autotune
20
Range
0.1 to 30.0
0.0 to 30.0 seconds
0.00 to 1.00 seconds
0 : Direct
1 : Inverse
0 : Digital
1 : Analog
0.0 to 100.0
P3-08 to 100.0
0.0 to P3-07
0 : Digital output limits
1 : Analog Upper Limit
2: Analog Lower Limit
3 : PID added to Bipolar
analog input reference
nd
0 : 2 Analog Input
1 : Bipolar analog input
Range
0 : Disabled
1 : Enabled
Optidrive VTC – User Guide
Units Default Explanation
PID Controller Proportional Gain. Higher values provide a greater
- 2.0 change in the drive output frequency in response to small changes
in the feedback signal. Too high a value can cause instability
PID Controller Integral Time. Larger values provide a more damped
1.0
response for systems where the overall process responds slowly
0.00 PID Differential Time Constant
Direct operation – Motor speed increases with an increase in the
feedback signal
- 0 : Direct
Inverse Operation – Motor speed decreases with an increase in the
feedback signal
Selects the source for the PID Reference / Setpoint
- 0 : Digital 0 : P3-06 is used
1 : Bipolar analog input is used
% 0.0 Sets the preset digital PID reference / setpoint
% 100.0 Limits the maximum value output from the PID controller
% 0.0 Limits the minimum output from the PID controller
0 : PID output range limited by P3-07 & P3-08
1 : PID maximum output limited by the signal applied to the bipolar
analog input
- 0 2: PID minimum output limited by the signal applied to the bipolar
analog input
3: PID output is added to the speed reference applied to the bipolar
analog input
- 0 Selects the source of the PID feedback signal
Units Default Explanation
- -
When set to 1, the drive immediately carries out a non-
- 0 rotating autotune to measure the motor parameters for
optimum control and efficiency
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