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(Example 1)
If the PID ZONE type is SP, Working SP is 40.0 and like figure 3.13.2, T values are set,
because the SP is between T3(0) and T4(50) by the figure, Zone number for PID control is four.
So PID constants in ZONE 4 are operated for PID control.
(Example 2)
If the PID ZONE type is PV, the PV is 150.0 and like figure 3.13.2, T values are set, because
the PV is between T5(100) and T6(250) by the figure, Zone number for PID control is 6. So PID
constants in ZONE 6 are operated for PID control.
2. Segment PID
Segment PID is used for only program control and sets PID group number applied to
PID control in Segment edition screen of program. It is like figure 3.13.3.
Fig. 3.13.3 Example for setting Segment PID group
PID group 1 of
Segment 1
•
Gain for Heating
•
Gain for Cooling
•
Reset for Heating
•
Reset for Cooling
•
Rate for Heating
•
Rate for Cooling
PID
•
Gain for Heating
•
Gain for Cooling
•
Reset for Heating
•
Reset for Cooling
•
Rate for Heating
•
Rate for Cooling
PID
•
Gain for Heating
•
Gain for Cooling
•
Reset for Heating
•
Reset for Cooling
•
Rate for Heating
•
Rate for Cooling
PID
•
Gain for Heating
•
Gain for Cooling
•
Reset for Heating
•
Reset for Cooling
•
Rate for Heating
•
Rate for Cooling
PID
•
Gain for Heating
•
Gain for Cooling
•
Reset for Heating
•
Reset for Cooling
•
Rate for Heating
•
Rate for Cooling
PID
•
Gain for Heating
•
Gain for Cooling
•
Reset for Heating
•
Reset for Cooling
•
Rate for Heating
•
Rate for Cooling
PID
•
Gain for Heating
•
Gain for Cooling
•
Reset for Heating
•
Reset for Cooling
•
Rate for Heating
•
Rate for Cooling
PID
•
Gain for Heating
•
Gain for Cooling
•
Reset for Heating
•
Reset for Cooling
•
Rate for Heating
•
Rate for Cooling
•
Hysteresis for Heating
•
Hysteresis for Cooling
•
Manual Reset
•
Dead band
•
Output low limit
•
Output High limit
•
Tuning Point
PID group
PID group 3 of
Segment 2
PID group 8 of
Segment 3
MENU
SEG EDIT
01-23 FRI
12. 59. 50
1
EVENT SET
JC
GS
TIME
PID
SP
SEG
00
01
02
1 M M A P
1 0 P 0 A A
P P M M A 0
0 0 1 1 A A
T 0 M M A 0
P P 0 0 A A
INS DEL EDIT RPT
100.0
1
00:50
0
1
100.0
3
01:00
0
1
20.0
8
01:00
0
1