Omron SYSDRIVE 3G3HV SERIES User Manual

3-33
H PID Control Function
Refer to the following block diagram for the PID control performed by the Inverter.
Set point
Feedback
FV
terminal
FI terminal
Feedback ad -
justment gain
100%: Feedback value
corresponding to the
maximum frequency
(N012)
Inside the Inverter
Multi-function input/PID input selection
Proportional
gain
1/Integral time
Derivative
time
Upper limit
of integral (I)
Internal limit
±109%
PID of fset
adjustment
PID
primary
delay
time constant
PID control
selection
Inverter fre -
quency refer -
ence
Derivative
time
H PID Control Settings
n084
PID Control Function Selection
Setting range 0, 1, and 2 Unit --- Default setting 0
Set Values
Set value Description
0 No PID control.
1 PID control with deviation derivative control.
2 PID control with feedback derivative control.
3 PID control with negative feedback characteristic control.
Note 1. Set n084 to 1, 2, or 3 to permit the Inverter to perform PID control.
Note 2. Usually set n084 to 2 to change set points.
Note 3. Set
n084 to 3 to perform PID control using the negative characteristic of the characteristic of
the feedback value input from the sensor . Using the negative characteristic means that [100%
– feedback value] is used as the PID feedback value. This is ef fective for negative characteris -
tic control (control where the feedback value drops when the Inverter’s output frequency
rises).
Preparing for Operation Chapter 3

Omron SYSDRIVE 3G3HV SERIES Specifications

General

Brand	Omron
Model	SYSDRIVE 3G3HV SERIES
Category	Inverter
Language	English