41
[Time signal action during fixed value control]
During the fixed value control, step time of the step at which the Hold function was
set is regarded as (00:00). Time signal time measurement is carried out ignoring this
step.
(Fig. 7.5-1)
[Action after the power failure is restored]
If power failure occurs during fixed value control, fixed value control resumes
after
the power failure is restored.
7.6 How to correct PV (Sensor correction function)
[Sensor correction function]
This corrects the input value from the sensor. When a sensor cannot be set at a
location where control is desired, the sensor measuring temperature may deviate from
the temperature in the controlled location.
When controlling with multiple controllers, the accuracy of the sensors or dispersion of
load capacity has influence on the control.
Therefore, sometimes the measured temperature (input value) does not concur with
the same setting value.
In such a case the control can be set at the desired temperature by correcting the input
value of the sensors.
PV = Current actual tempe Sensor correction value
[How to set sensor correction value]
[Program standby mode or program control run mode]
Press the
key for 3 seconds while
holding down the
key.
Auxiliary function setting mode 1 is selected
+
and Setting value lock selection is selected.
(for 3s)
SV=500
ON
ON
OFF
OFF
1
2
3
4
5
Step number
Advance
Time
The step at which Hold
function was set
Usual time signal output
Time signal output at which
the Advance function is used
(when advanced to Step 2)
Temperature
C
PTN
PV
Actual temp.
STEP
SV
Содержание PCD-33A
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