WIKA CF2S - Manual (Page 47)

Operating Instructions Temperature Indicating Controller CF2S
V1.2 • 08/2004 - 47 -
<Program mode>
Character Item Initial value Data
Program control change Fixed value control
Step 1 time setting 00.00
Step 2 time setting 00.00
Step 3 time setting 00.00
Step 4 time setting 00.00
Step 5 time setting 00.00
Step 6 time setting 00.00
Step 7 time setting 00.00
Loop break alarm
The alarm will be activated when the process variable (PV) does not rise as much
as the span or greater within the time it takes to assess the loop break alarm
after the manipulating value has reached 100% or the output high limit value.
The alarm will also be activated when the process variable (PV) does not fall as
much value as the span or greater within the time it takes to assess loop break alarm
after the manipulating value has reached 0% or the output low limit value.
When the control action is Direct (Cooling), the alarm acts conversely.
Sensor correction function
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 sensors have influence
on the control. Therefore, sometimes the measuring temperature (input value)
does not concur with the same setting value. In such a case, the control
can be set with desired temperature by shifting the input value of sensors.
Energized/Deenergized function
[If the alarm action energized is selected]
When the alarm output action indicator is lit, the alarm output (terminal 3-4, 3-5)
is conducted (ON). When the alarm output action indicator is unlit, the alarm output
is not conducted (OFF).
[If the alarm action deenergized is selected]
When the alarm output action indicator is lit, the alarm output (terminal 3-4, 3-5)
is not conducted (OFF). When the alarm output action indicator is unlit, the alarm
output is conducted (ON).