Setting Reference Junction Compensation (Rjc) Or External Reference Junction Compensation (Erjc) - Automationdirect.com prosense PPC5 Series User Manual

Chapter 5: Input Setting Functions
5.1.3 Setting Reference Junction Compensation (RJC) or External Reference
Junction Compensation (ERJC)
Description
Setting Details
5-6
Reference Junction Compensation (RJC)
When TC input is selected, presence/absence of input reference junction compensation
can be set.
Usually input values are compensated with the RJC function provided for the controller.
However, if it is necessary to rigorously compensate the values with a device other than
the function of the controller, for example with a zero-compensator, the RJC function of
the controller can be turned off.
External Reference Junction Compensation (ERJC)
For TC input, a temperature compensation value for external device can be set.
The external RJC can be used only when RJC = OFF.
Terminal block
TC
Furnace
Terminal block
TC
Furnace
Compensating lead wire
Parameter
Name
symbol
PV input reference
RJC
junction compensation
PV input external RJC
ERJC
setpoint
Compensating lead wire
Normal wiring
Installed in an area where
ambient temperature is
fixed to 25°C.
Display
level
OFF: RJC OFF
PRO
ON: RJC ON
PRO -10.0 to 60.0°C
Example:
Setting parameters
RJC = OFF,
ERJC = 25.0°C
Set the temperature in the
area using ERJC parameter.
Setting range Menu symbol
PV
PV
PPC Manual Revision 1