APC AXFA11G Maintenance, Components Replacement, Display Unit Replacement, Fuse Replacement

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10. MAINTENANCE

10. MAINTENANCE

10.1 Components Replacement

WARNING

• Component replacement and the associated operations must be carried out by expert engineer or skilled personnel and not by operators.

• Before opening the cover, it is important to ensure that at least 10 minutes have passed since the power was turned off. Furthermore, opening of the cover must also be carried out by a expert engineer or skilled personnel.

IMPORTANT

•As a rule, maintenance of this flowmeter should be implemented in a maintenance service shop where the necessary tools are provided.

•The amplifier assembly contains sensitive parts that may be damaged by static electricity. Excercise care so as not to directly touch the electronic parts or circuit patterns on the board, for example, by preventing static electrification by using grounded wrist straps when handing the assembly. Also take precautions such as placing a removed amplifier assembly into a bag with an antistatic coating.

Fuse holder

F1001.EPS

Figure 10.1.1 Fuse Assembly

10.1.2 Display Unit Replacement

10.1.2.1 Removing the Display Unit

(1)Turn off the power.

(2)Remove the cover.

(3)Hold the display unit with your hand and remove the two mounting screws. Remove the connector by lifting it upward, taking care not to damage it.

10.1.1 Fuse Replacement

CAUTION

Be sure to turn off the power before performing fuse replacement. Also be sure to use the spare fuse that was supplied with the product, or ones supplied by Yokogawa’s sales or service offices.

The fuse holder is located on the lower side of the terminal block. Press this holder upwards and turn it counterclockwise to remove it; then, replace the holder’s fuse. Note that the fuse holder must be pressed upwards and turned clockwise when it is being reassembled. A spare fuse is secured by tape to the inside of the case’s left side.

10-1	IM 01E20C01-01E

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Contents Users ManualAXFA11G Contents Operation VIA Hart Communicator Revision Record Introduction Safety and Modification PrecautionsWarranty Using the Magnetic Flowmeter SafelyGuarantee will not apply in the following cases Combination Remote Flowtubes Storage Precautions Handling PrecautionsChecking Model and Specifications AccessoriesSurface Mounting Wall Mounting InstallationInstallation Location MountingUnit mm approx. inch Panel cutout 203 Mounting fixture 172 Inch Pipe MountingPanel Mounting Inch pipe Mounting fixture Washer Clamp screwCables WiringWiring Precautions Dedicated Signal Cable AxfcOn the converter side Wiring PortsExcitation Cable/Power Cable/Output Cable Unit mm approx. inch Crimp TerminalPlastic gland When there are no particular optional specificationsWiring using waterproof glands Conduit WiringTerminal Configuration Wiring ConnectionsRemoving Cover DC Power Connection Precautions for Wiring of Power Supply CablesProtective grounding terminals Wiring the Remote Flowtube with the AXFA11 ConverterAxfc Dedicated signal cable Excitation cable GroundingTo 20 mA DC Current Output Connecting to External Instru- mentsStatus Input Pulse Output13 Status Output Connection Status Output / Alarm OutputSetting switch operations Operating Panel Configuration and FunctionsData display area None ContentDisplay items Reversed-character indicationDisplay Mode → Setting Mode Display Unit Setting MethodsSetting Mode To Parameter Search Mode Setting Mode Parameter Setting ProcedureSetting Example for Selection-Type Data Flow rate units Parameter Sub-item Sub-item Current unit settingSub-item Parameter Search Mode B21 Base Flow UnitB23 Flow Span Setting Example for Numeric-Type Data Flow rate spanSetting Mode Condition Major Item Parameter Search Mode Setting modeIncorrect setting Setting Example for Alphanumeric-Type Data Tag numberSetting Mode Condition Sub-item Parameter Search Mode Major itemSub-item Major item Search Mode Selection CModified value Parameter Description Item a Menu a Display items Item B Menu B Easy Setup itemsName Data range Default value Units Description Display unitIndicated item Name Data range Position Default value Units Display unit Item C Menu C Basic Setting itemsName Item D Menu D Total Setting itemsDefault value Units Display unit Name Data range Position Default value Display unitItem F Menu F Status Functions Setting items Item E Menu E Pulse Setting itemsItem G Menu G Alarm Setting items ALM-SIG Over ALM-SETTINGALM HYS ALM OUT ACTItem J Menu J Auxiliary Function Setting items Item H Menu H Display Setting itemsUnits Display unit Item K Menu K Diagnostic Function Setting itemsItem P Menu P Parameter Protection items Item N Menu N Loop Test Setting itemsData Range Menu B Easy Setup itemsUnit/P 10-9 FU u Unit/P 10-6 FU Pulse/s Example When 1000 m3/h is set for B23/C42 Flow SpanDescription B41/H11 Display Select2 and B42/H12 Display Menu C Basic Setting itemsMeter Factor Settings Is set forB22/C41 Base Time Unit Menu D Total Setting itemsC47 User Span Select Selection of the use C49 Flow User SpanIs set forB22/C41 Base Time TOTAL, and A32 DIF Total when BrainF13 Flow UnitSetting for E20 Pulse Active Mode Menu E Pulse Setting itemsE20 Pulse Active Mode G33 Alm-HH/LL to Yes Menu F Status Functions Setting itemsSetting Function Description Switch Lower and D24 Ttl Switch UpperVal Upper No Function No input function1 Status Output for Automatic Multiple Ranges Switching Multiple ranges settingMultiple Ranges Setting Automatic multiple ranges switching Status Output for Automatic Multiple Ranges SwitchingF10 SO1 Function F11 SO2 Function Parameter setting sequenceFor automatic multiple ranges switching F14 SO1/2 Active ModeF15 2 Multiple Ranges Switching via External Status InputG10 Low Alarm Low alarm setting Menu G Alarm Setting itemsG11 High Alarm High alarm setting Output Example High High Alarm100 High Alarm 100 High Alarm Instantaneous flow rate Low Low Alarm Time t25% 100 85% 75% High Alarm35% Low Alarm 100ClosedOn OpenOff Setting FunctionExample G22 4-20mA Burn Out Display of the currentG45 Alm Record3 Alarm record3 G41 Alm Record1 Alarm record1Alarm Items G43 Alm Record2 Alarm record2Setting range 0 to 10% Hysteresis Menu J Auxiliary Function Setting itemsExample 2 Slurry noise Function orDetermining rate limit value and dead time Example 1 Step inputPower Supply Code 100 to 240 V AC or 100 to 120 V DC J31 Power FrequencyMenu K Diagnostic Function Setting items K10 Adhesion Check Setting of adhesionSO1 Function or F11 SO2 Function, then Adhesion Diagnostic FunctionMenu M Automatic Zero Adjustment Function Setting items Menu N Loop Test Setting itemsWrite Protect function N11 Test Output Value Setting for test outputDefault setting Enable Menu P Parameter Protection itemsAfter password setting Default settingDisplay and output condition for process alarms G20 Alm Out Act Mode Setting of the activeOut Act Mode Output Unit Display and output condition for setting alarm occurrencesAlarm description Selection Totali Pulse Display AlarmAlarms & Warning Messages K12, K13 and K14 are correct Key Layout and Display Operation VIA Brain Terminal BT200BT200 Basic Operations Key DescriptionsFunction Keys Command FunctionKey-in Sequence Data update and upload/ download function of BT200 AXFA11 Operation Using a BT2001 BT200 Connection 3 BT200 Screens & Flow Rate Data Display Parameter Setting Using a BT200Moved to B Easy Setup 1 BT200 Setting of Selection-Type Data Flow rate unitsB21 Flow UNIT, press B23 Flow SPAN, press 2 BT200 Setting of Numeric-Type Data Flow rate spanTo C Basic Setup 3 BT200 Setting of Alphanumeric-Type Data Tag numberMoved to C Basic Setup Operation VIA Hart Communicator Communication Line Requirements Specifications for Communication LineConditions of Communication Line Interconnectwion between AXFA11 and Hart CommunicatorKeys and Functions Basic Operation of the Hart Communicator ModelCalling Up Menu Addresses DisplayKey Operation Data Renewing Entering, Setting and Sending DataParameter Configuration ParametersSetting Parameters Checking for ProblemsExample of Setting Selection-Type Data Base Flow Unit PV Span Example of Setting Numeric-Type Data PV SpanDisplay Example of Setting Alphanumeric-Type Data Tag NumberSelect MF Set Example 1 of Other Settings Meter FactorSelect Power Frequency Trim Example 3 of Other Settings Trim Analog OutputReturning fld dev to original output appears Select the Scaled D/A trim Returning fld dev to original output appears Example 5 of Other Settings Multidrop Mode Example 4 of Other Settings Burst ModeSetting of Burst Mode Exiting Burst ModePolling Example 6 of Other Settings Write Protection Exiting Multidrop ModeOpen Wrt Protect Menu in the Hot key Menu Setting PasswordEnable Wrt 10min Changing PasswordOther Functions and Operations Joker password and Software SealOn next Menu TreeE12 J24 J30 P22 P23 Actual Operation Pre-operation Zero AdjustmentSelection D Major item Sub- item selection D Zero Adjustment Using Display Unit SwitchesZero Adjustment via External Status Input Ext Auto Zero Fuse Replacement MaintenanceComponents Replacement Display Unit ReplacementOutput Setting Pins for Burnout Setting of SwitchesAmplifier Replacement Setting of Burnout Switch4 Switch Configuration Setting of Write Protect SwitchNo Indication TroubleshootingStart Unstable ZeroDisagreement Between Indication and Actual Flow 65 10 Cf 10,000 OutlineFunctions How to Set ParametersStandard Performance Size 2200 mm 88 in. to 2600 mm 104 Maximum Power ConsumptionSafety Requirement Standards Power Supply Power supply codeAccessories Terminal Wiring Optional Specifications for AXFA11 Remote ConverterSurface mounting Remote Converter AXFA11GGeneral tolerance in the dimensional outline drawing Remote Converter AXFA11G /RK AM11 Replacement BracketAXFC-0-L Dedicated Signal Cable AXFC-4-LEdition Date Revised item Revision Record