Application 4: Pid Control - Parker AC30P Hardware Installation Manual

5-18
Installation - Control Module

APPLICATION 4: PID CONTROL

Easy Tuning for setpoint/feedback control applications regulating volume or pressure, such as air handling or pumping
PROCESS SETPOINT
PROCESS FEEDBACK
RUN
PID ENABLE
PID INTEGRAL DEFEAT
NOT STOP
NOT COAST STOP
NOT QUICKSTOP
TRIP RESET
PID Control Application
A simple application using a Proportional-Integral-Derivative 3-term controller. By default the setpoint is taken from AIN1, with feedback signal
from the process on AIN2, scaling parameter 1939 swaps the routing of AIN1 & 2. The scale and offset features of the analogue input blocks may
be used to correctly scale these signals. The difference between these two signals is taken as the PID error. The output of the PID block is then
used as the inverter setpoint.
ANIN 01 (X11/01)
ANIN 02 (X11/02)
PID CONTROL
Proportional Gain
1928
Integral TC
1929
Derivative TC
1930
Output Filter TC
1931
Output Pos Limit
1932
Output Neg Limit
1933
Output Scaling
1934
DIGIN 01 (X13/02)
DIGIN 02 (X13/03)
DIGIN 03 (X13/04)
DIGIN 04 (X12/01)
DIGIN 05 (X12/02)
DIGIN 06 (X12/03)
DIGIN 07 (X12/02)
SEQUENCING LOGIC
Seq Stop Method
0484
Application 4:
"Process PID"
EASY TUNING FOR SETPOINT/FEEDBACK
CONTROL APPLICATIONS REGULATING
VOLUME OR PRESSURE, SUCH AS AIR
HANDLING OR PUMPING
Ref Max Speed Clamp
1265
MIN /MAX SPEED
Ref Min Speed Clamp
1264
F
V
CURRENT LIMIT
V/F SHAPING
I FDBK
Rated Motor Current
Vhz Shape
0455
0422
Base Frequency
0457
Fixed Boost
0447
Acceleration Time
0486
RAMP
Deceleration Time
0487
Stop Ramp Time
0504
Quickstop Ramp Time
0508
F
V
PWM CONTROL
ANOUT 01 (X11/03) SPEED DEMAND
ANOUT 02 (X11/04)
MOTOR CURRENT
FEEDBACKS
RELAY 01
(X14/01)
if AC30V
(X14/02)
OR
RELAY 11 (X23/01)
Requires IO Option
(X23/02)
7004-01-00
RELAY 02
(X14/03)
if AC30V
(X14/04)
OR
RELAY 12
(X23/03)
Requires IO Option
(X23/04)
7004-01-00
AC30 series Variable Speed Inverter
RUNNING
NOT
TRIPPED