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8.2.3 PID Group
PID parameters can be set in this group.
PID group is common to Fixed value control and program control.
To enter the PID group, follow the procedure below.
(1)
Press the
key twice in PV/SV Display Mode.
The unit proceeds to the PID group.
(2)
Press the
key.
If PID zone function “Not used” is selected in [PID zone function],
the unit proceeds to ‘Proportional band 1’.
If PID zone function “Used” is selected in [PID zone function],
the unit proceeds to ‘PID zone value 1’.
Character
Name, Function, Setting Range
Factory Default
PID zone value 1
0
• Sets PID zone value 1 (Reference value 1) to change PID zone
parameters of the PID zone function.
Available when the PID zone function “Used” is selected in [PID zone
function].
One zone contains from “PID zone value 1” to “MV rate-of-change 1”.
When SV is lower than Reference value 1, control is performed with
these PID zone parameters.
• Setting range: Scaling low limit value to Scaling high limit value
Proportional band 1
10
• Sets proportional band 1.
ON/OFF control when set to 0 or 0.0.
• Setting range: 0 to Input span ( )
DC voltage, current inputs: 0.0 to 1000.0%
Integral time 1
200 seconds
• Sets integral time 1.
Setting the value to 0 disables the function.
Auto-reset can be performed when PD is control action (I=0).
• Setting range: 0 to 3600 seconds
When “FBP No” is selected in [FBP Yes/No]: 1 to 3600 seconds
Derivative time 1
50 seconds
• Sets derivative time 1.
Setting the value to 0 disables the function.
• Setting range: 0 to 1800 seconds
ARW 1
50%
• Sets ARW 1 (anti-reset windup 1).
• Setting range: 0 to 100%