IMR01H01-E4
11
Continued from the previous page.
(A)
Derivative time (D)
Set the time of derivative action which prevents ripples by predicting output changes and thus improves
control stability.
Setting range:
1 to 3600 seconds
OFF (0 second): Derivative action OFF (PI action)
Factory set value: 60 seconds
No setting can be changed when “1 (Lock)” is selected by the lock level 1.
Anti-reset windup
In order to prevent an overshoot caused by the integral effect, sets the value to restrict the effective
range of integral action.
Setting range:
0 to 100 % of proportional band (0: Integral action OFF)
Factory set value: 100 %
No setting can be changed when “1 (Lock)” is selected by the lock level 1.
Cool-side proportional band
[Correspond to only MA900]
Displayed only for heat/cool PID control. Set the cool-side proportional band for the heat/cool PID
control.
Setting range:
1 to 1000 % of heat-side proportional band
Factory set value: 100 %
•
No setting can be changed when “1 (Lock)” is selected by the lock level 1.
•
In case of MA901, this setting item is not provided.
Overlap/deadband
[Correspond to only MA900]
Displayed only for heat/cool PID control. Set the deadband between the heat-side proportional band and
the cool-side proportional band.
Setting range:
-span to +span (Within -1999 to +9999 digits)
Factory set value: Temperature input 0
°
C [
°
F] or 0.0
°
C [
°
F]
Voltage input 0.0 %
•
No setting can be changed when “1 (Lock)” is selected by the lock level 1.
•
In case of MA901, this setting item is not provided.
•
Minus (-) setting results in overlap.
Setting change rate limiter
Set the amount of set value (SV) change per 1 minute when the SV is changed.
Setting range:
0 (0.1) to span/min.
OFF: Setting change rate limiter OFF
Factory set value: OFF
•
No setting can be changed when “1 (Lock)” is selected by the lock level 1.
•
The set value (SV) while the setting change rate limiter can be checked in PV/SV monitor
mode.
•
When the power is turned on or the operation is changed from STOP to RUN, the setting
change rate limiter functions toward the set value (SV) from the measured value (PV) when
started.
•
If the autotuning (AT) function is activated while the setting change rate limiter functions, PID
control continues until the limiter completes its functioning, and the AT function is activated
after the limiter completes its functioning.
Used/unused of channels
Select the used or unused of each channel for each memory area.
Setting range:
(oFF): Unused
(MonI): Used for only alarm
(ConT): Used for control and alarm
Factory set value: ConT
•
No setting can be changed when “1 (Lock)” is selected by the lock level 1.
•
During display scanning, each unused channel is skipped. When the channel number is
selected by the CH key, any unused channel is displayed.
Return to first parameter setting item.
PV
CH
SV
AREA
PV
CH
SV
AREA
PV
CH
SV
AREA
PV
CH
SV
AREA
PV
CH
SV
AREA
PV
CH
SV
AREA
Manipulated output (MV)
100 %
0 %
Heat-side output
value
Cool-side
proportional band
Heat-side
proportional band
Cool-side output
value
SV
(In proportional control)
OL
DB
OL: Overlap
DB: Deadband
Temperature