13
Auto/Manual start selection
Auto start
• Selects either auto or manual start of the limit control action. (Refer to Section 7.3)
• Selection range:
: Auto start
: Manual start
EXCEEDED indicator lighting duration time unit selection
Hour.Minute
• Selects unit of “EXCEEDED indicator lighting duration time”.
•
Selection range:
: Hour.Minute
: Minute.Second
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 plural controllers, sometimes the measured temperatures (PV) 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 sensors.
Energized/Deenergized
When A1/A2 Energized is selected, the A1/EVT (A2) output (between terminals 3-4, or 3-5) is conducted
(ON) while the A1/EVT (A2) output indicator is lit.
The A1/EVT (A2) output is not conducted (OFF) while the A1/EVT (A2) output indicator is not lit.
When A1/A2 Deenergized is selected, the A1/EVT (A2) output (between terminals 3-4, or 3-5) is not
conducted (OFF) while the A1/EVT (A2) output indicator is lit.
The A1/EVT (A2) output is conducted (ON) while the A1/EVT (A2) output indicator is not lit.
High limit alarm (when Energized is set) High limit alarm (when Deenergized is set)
(Fig. 5.5-1) (Fig. 5.5-2)
6. Running
After the unit is mounted to the control panel and wiring is completed, operate the unit following the
procedures below.
(1) Switch power supply to the JCS-33A ON.
Switch power supply to the JCS-33A ON.
• For approx. 3sec after the power is switched ON, the sensor input characters and the temperature unit
are indicated on the PV display and input range high limit value is indicated on the SV display. See
(Table 5-1). (If any other value has been set during scaling high limit setting, the set value is indicated
on the SV display.) During this time, all outputs and LED indicators are in OFF status.
• After that, control starts indicating PV (process variable) on the PV display, and SV (desired value) on the
SV display.
(2) Input each set value.
Input each set value, referring to “5. Settings”.
(3) Turn the load circuit power ON.
Limit control action starts.
OFF
ON
A1 hysteresis
SV setting
+ A1 set point
OFF
ON
SV setting
+ A1 set point
A1 hysteresis
