535-PROF User's Manual
Chapter 7
105
Applications
B
A
C
➔
➔
NOISE
BUMP
➔
ADAPTIVE
SP
• A to B is a 5 second noise band measurement.
• B to C is an open loop bump test to determine initial PID values
and response time.
• C is Pretune completed, so Adaptive PID control begins if ENABLED.
➔
TIME
TIME
B
A
0%
30%
50%
0%
70%
100%
300
500
700
900
➔
➔
SP
CONTROL
OUTPUT
PV
• A to B is ON/OFF control to determine initial PID values.
• B is Pretune completed, so Adaptive PID control beings if ENABLED.
Note:
Noise Band and Resp. Time must be entered before
enabling Adaptive TUne)
TYPE 1 Pretune/Adaptive Control
Out Step
Out Step
B
A
C
➔
➔
NOISE
BUMP
➔
ADAPTIVE
SP
• A to B is a 5 second noise band measurement.
• B to C is an impulse to determine initial PID values and response
time.
• C is Pretune completed, so Adaptive PID control begins if ENABLED.
➔
High Out Limit
Low Out Limit
PRETUNE
ADAPTIVE
Pretune
TIME
Pretune
0
0%
30%
50%
0%
70%
100%
300
500
700
900
CONTROL
OUTPUT
PV
TYPE 2 Pretune/Adaptive Control
0
0%
30%
50%
0%
70%
100%
300
500
700
900
CONTROL
OUTPUT
PV
TYPE 3 Pretune/Adaptive Control
0
under manual control.
8. Press
MENU
to access the
TUNING
menu.
Set
ADAPTIVE
to ENABLED. The Adaptive Tuning cycle does not begin
until the controller is under automatic control.
9. Activate the next parameter,
PRETUNE
.
10. Press
and then ACK
to begin Pretuning.
The 3rd display will show the message EXECUTING.
Figure 7.13
Pretune TYPE 1, TYPE 2 and TYPE 3
with Adaptive Tune