YOKOGAWA UM33A - Safety, Protection, and Modification of the Product

IM 05P03D21-11EN page 6/8
Contents
1. Monitoring-purposeOperationDisplaysAvailableduringOperation
2. SettingAlarmSetpoint
3. Troubleshooting
1. Monitoring-purpose Operation Displays Available during Opera tion
■ OperationDisplaySwitchingDiagram
8 8
PV Display
SELECT Displays (1 to 5)
PresstheDISPkeytoshowSELECTDisplay-1to-5conditionally.
FortheregistrationoftheSELECTDisplays,seeUser’sManual.
Operation
Guide
UM33A
Digital Indicator with Alarms
Operation Guide
This operation guide describes key entries for operating the UM33A.
For operations using external contact inputs, see “DI” of “6. Terminal Wiring Diagrams”
in “Installation and Wiring.”
If you cannot remember how to carry out an operation during setting, press the
DISP key once. This brings you to the display (Operation Display) that
appears at power-on.
The scrolling guide is displayed on PV display in the Parameter Setting Display.
This guide can be turned on/off with the Fn key.
Operations
2. Setting Alarm Setpoint
Thefollowingoperatingprocedureshowsanexampleofsettingthealarm-1setpoint
to180.0.
Beforesettingthealarmsetpoint,checkthealarmtype.
To change the alarmtype,see “3.SettingAlarmType”in“Initial settings”ofthis
manual.
1.
2.
3.
4.
5.
6.
8
8
AL menu is displayed.
Display the parameter that need to be changed.
Blinks during the change.
Show the Operation Display.
Hold down the PARA key for 3 seconds.
Press the SET/ENTER key.
Press the SET/ENTER key.
Press the SET/ENTER key.
The parameter A1 is displayed.
A1 to A8 represent the alarm-1 to -8
setpoints.
Each parameter can be changed in the
Parameter Setting Displays of alarms
using Up/Down arrow keys .
Change the setpoint using the Up/Down arrow keys to
increase and decrease the value and the Left/Right
arrow keys to move between digits.
The setpoint has been registered.
After the setup is completed, press
the DISP key once to return to the
Operation Display.
3. Troubleshooting
■TroubleshootingFlow
IftheOperationDisplaydoesnotappearafterturningontheindicator’spower,check
theproceduresinthefollowingowchart.
Ifaproblemappearstobecomplicated,contactoursalesrepresentatives.
■RemediesifPowerFailureOccursduringOperations
• Instantaneous power failure within 20 ms.
 Apowerfailureisnotdetected.Normaloperationcontinues.
• Power failure for less than about 5 seconds, or for about 5 seconds or more.
 Affectsthe"settings"and"operationstatus."
 Fordetails,seeUser'sManual.
NOTE
Write down the settings
of parameters for a repair
request.
Is the indicator
defective?
Contact us for repair. Problem solved.
No communication
capability
Completely
inactive?
Yes
Yes
Yes
No
No
No
Key
operation
failure?
Yes
No
Yes
Check wiring of the
power terminals.
Check the key lock
setting.
Display
failure?
*
Yes
No
Turn off power, and
then turn it on again.
I/O signal
failure?
Yes
No
Check the
supply voltage.
Check the
specifications and polarity
of connected devices .
Check the communication-
related parameters.
Check the specifications
of communication
devices.
Check the
communication wiring.
Communication
failure?
No
With
communi-
cation?
Yes
Yes
Normal?
Is the
key locked?
Check the specifications
of the indicator.
Yes
No
Correct?
Correct the error(s).
Cancel the setting.
Check the I/O specifications
of the indicator.
* The LCD (a liquid crystal display) is used for a
display portion of this product.
The LCD has a characteristic that the display action
becomes late at the low temperature.
Additionally, the luminance and contrast degradation
are caused due to aged deterioration.
However, the function is not affected.
n
Errors at Power On
Theerrorsshownbelowmayoccurinthefaultdiagnosiswhenthepoweristurnedon.(FordetailsofSetpointdisplayandinput/outputactionwheneacherroroccurs,seeUser’sManual.)
PV display
(Operation
Display)
Setpoint display
(Operation Display)
Status indicator
(Operation Display)
Parameter that displays error
details
Error description Cause and diagnosis Remedy
Indication off Indication off
— — FaultyMCURAM/MCUROM MCURAM/MCUROMarefailed.
Faulty.
Contactusforrepair.
ERR
SYS-----
—
— System data error System data is corrupted.
Faulty.
Contactusforrepair.
PAR0004
(foruserdefaultvalueerroronly)
Setupparameter(PA.ER)
User(parameter)defaultvalue
error
Userparameteriscorrupted.
Initializedtofactorydefaultvalue.
Checkandreconguretheinitialized
settingparameters.Errorindicationis
erased when the power is turned on
again.
PAR0010
(forsetupparametererroronly)
Setup parameter error
Setup parameter data is corrupted.
Initializedtouserdefaultvalue.
PAR0020
(foroperationparametererroronly)
Operationparametererror
Operationparameterdataiscorrupted.
Initializedtouserdefaultvalue.
SLOT0001
Setupparameter(OP.ER)
Nonrespondinghardwareof
extendedfunction(E1-terminal
area)
Inconsistence of system data and hardware of
extendedfunction.
Nonrespondingcommunicationbetweenhardware
ofextendedfunction(E1-terminalarea).
Faulty.
Contactusforrepair.
Normal
indication
Normalindication
Rightmostdecimalpoint
onPVdisplayblinks.
Setupparameter(PA.ER)
Calibrationvalueerror
Initializedtocalibrateddefaultvaluebecause
ofcorruptedfactorydefaultvalue.
Faulty.
Contactusforrepair.
Rightmostdecimalpoint
onSymboldisplayblinks.
FaultyFRAM Datawriting(storing)toFRAMisimpossible.
n
Errors during Operation
Theerrorsshownbelowmayoccurduringoperation.(Forinput/outputactionwheneacherroroccurs,seeUser’sManual.)
PV display
(Operation
Display)
Setpoint display
(Operation Display)
Status indicator
(Operation Display)
Parameter that displays
error details
Error description Cause and diagnosis Remedy
AD.ERR
Normalindication — Setupparameter(AD1.E)
AnaloginputterminalADCerror
•PVinput
AnaloginputterminalADvalueerror
Faulty.
Contactusforrepair.
RJC.E
(DisplaysRJC.
EandPV
alternately.)
Normalindication — Setupparameter(AD1.E)
UniversalinputterminalRJCerror
•PVinput
UniversalinputterminalRJCerror
Faulty.
Contactusforrepair.
SettheparameterRJCtoOFFtoerase
error indication.
B.OUT
Normalindication —
Setupparameter(AD1.E)
Analoginputterminalburnouterror
•PVinput
Analoginputterminalsensorburnout
Checkwiringandsensor.
Errorindicationiserasedinnormal
operation.
Setupparameter(PV1.E) PVinputburnouterror BurnoutofanaloginputconnectedtoPV
Checkwiringandsensorofconnected
analoginputterminals.
Errorindicationiserasedinnormal
operation.
OVER
-OVER
Normalindication — Setupparameter(PV1.E)
PVinputover-scale
PVinputunder-scale
(PVvaluesoutof-5to105%)
PVinputisoutof-5to105%.Alsooccurs
whenthedataoutofrangewhichisthe
ladder calculation result is input.
Checkanaloginputvalueorladder
program.
Normal
indication
0.00000000
(Decimalpointontheleftof
theSymboldisplayblinks)
— Setupparameter(OP.ER)
Communicationerror
(RS-485communication)
Framingparityerror
Bufferoverow
Inter-charactertime-out
Checksumerror(PClinkcommunicationwith
checksum)
CRCcheckerror(Modbus/RTU)
LRCcheckerror(Modbus/ASCII)
Checkthecommunicationparameters.
Recoveryatnormalreceipt.
Holddownanykeytostopblinking.
Normal
indication
Normalindication
Rightmostdecimalpointon
Symboldisplayblinks.
Setupparameter(PA.ER) FaultyFRAM Writing(storing)datatoFRAMisimpossible. Faulty.Contactusforrepair.
Undened Undened — —
FaultyMCU/DCU
(ROM/RAMerror,corrupted)
MCU/DCUiscorrupted. Faulty.Contactusforrepair.