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7.2
Program Pattern Setting
•
Example of Program Pattern Setting
Pattern 1
Step number
1
2
3
4
5
Step SV
500
500
1000
1000
0
Step time
0:30
1:00
0:40
1:00
2:00
PID block number
2
2
3
3
2
Wait function Enabled/Disabled
Enabled
Disabled
Enabled
Disabled
Disabled
(Fig. 7.2-1)
Explanation of Program Pattern
Step 1: After program control starts, control is performed so that SV gradually rises from 0
to 500
for 30 minutes.
Step 2: Control is performed to keep the SV at 500
for 1 hour.
Step 3: Control is performed so that SV gradually rises from 500
to 1000
for 40 minutes.
Step 4: Control is performed to keep the SV at 1000
for 1 hour.
Step 5: Control is performed so that SV gradually falls from 1000
to 0
for 2 hours.
•
Example of PID Block Setting
If program pattern is not set for a step, its PID block number becomes 1 (factory default).
We highly recommend that you leave the factory defaults of PID block 1 as they are, and
set the values from Block 2.
Control parameters such as PID, ARW are common to all patterns.
Block
number
OUT1
proportional
band
Integral
time
Derivative
time
ARW
OUT2
proportional
band
1
10
200 sec
50 sec
50%
10
2
10
(*)
200 sec
(*)
50 sec
(*)
50%
(*)
10
(*)
3
10
(*)
200 sec
(*)
50 sec
(*)
50%
(*)
10
(*)
(*) Setting items in PID block are determined after performing AT. So they are currently factory default values.
•
Example of Wait Value Setting
Wait value: 10
Wait value is common to all steps of each pattern.
0
500
1000
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