YOKOGAWA UP55A User Manual

7-6
IM 05P02C41-01EN
7.1.3 SettingReferenceJunctionCompensation(RJC)orExternalReference
JunctionCompensation(ERJC)
Description
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.
Furnace
Furnace
UP55A
UP55A
Compensating lead wire
Compensating lead wire
Terminal block
Terminal block
TC
TC
Installed in an area where
ambient temperature is
fixed to 25°C.
Set the temperature in the
area using ERJC parameter.
Normal wiring
Example:
Setting parameters
RJC = OFF,
ERJC = 25.0°C
SettingDetails
Parameter
symbol
Name
Display
level
Settingrange Menusymbol
RJC
PV input reference
junctioncompensation
PRO
OFF: RJC OFF
ON: RJC ON
PV
RSP remote input
referencejunction
compensation
PRO RSP
ERJC
PV input external RJC
setpoint
PRO
-10.0 to 60.0°C
PV
RSP remote input
external RJC setpoint
PRO RSP
Note 1: When each parameter is displayed, the terminal area (E1 to E4) is displayed on Group
display according to the suffix code and optional suffix code.
7.1SettingFunctionsofPVInput,RemoteInput,andAuxiliaryAnalogInput

YOKOGAWA UP55A Specifications

General

Brand	YOKOGAWA
Model	UP55A
Category	Controller
Language	English