Instruction manual

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 is restored]
If power failure occurs during fixed value control, fixed value control resumes
after the power is restored.
7.6 Correcting PV (Sensor correction function)
[Sensor correction function]
This corrects the input value from the sensor. When a sensor cannot be set at the
exact location where control is desired, the sensor measured temperature may deviate
from the temperature in the controlled location.
When controlling with plural controllers, sometimes the measured temperatures (input
values) do not concur due to differences in sensor accuracy or dispersion of load
capacities. In such a case, the control can be set at the desired temperature by
adjusting the input value of the sensors. However, it is effective within the input rated
range regardless of the sensor correction value.
PV after sensor correction = Current PV + (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.
The unit enters Auxiliary function setting mode 1,
+ and Set value lock selection is indicated.
(for 3 sec)
Step 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