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Hitachi SJ700-2 Precautions for Maintenance, Ground Resistance Test with a Megger

Models: SJ700-2

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Chapter 6 Maintenance and Inspection

This chapter describes the precautions and procedures for the maintenance and inspection of the inverter.

6.1Precautions for Maintenance and

	Inspection	6-1
6.2	Daily and Periodic Inspections	6-2
6.3	Ground Resistance Test with a Megger	6-3
6.4	Withstand Voltage Test	6-3

6.5Method of Checking the Inverter and

	Converter Circuits	6-4
6.6	DC-Bus Capacitor Life Curve	6-5
6.7	Output of Life Warning	6-5

6.8Methods of Measuring the Input/Output

Voltages, Current, and Power

6-6

Image 233

Hitachi SJ700-2 Precautions for Maintenance, Ground Resistance Test with a Megger, Method of Checking the Inverter

Contents

SJ700-2 Series Page Installation Safety Instructions！ Warning WiringOperation Maintenance, inspection, and parts replacement Precautions Concerning Electromagnetic Compatibility EMC 13.7 Model No Required torque N-m Wire range AWGOr 1/0 30 a Model No Fuse/circuit breaker a Type Rating40 a 60 aContents Contents Running time over and power-on time over signals RNT and ONT Contents Xii Error CodesXiii IndexOverview Page Inspecting the product Specification labelInspection of the Purchased Product Product warranty Method of Inquiry and Product WarrantyWarranty Terms Method of inquiryExterior Views and Names of Parts Installation and Wiring Page Installation and Wiring Inverter Precautions for installationInverter AcceptableUnacceptable Ventilation fanInverter capacity kW 18.5 Loss with 70% load W Loss with 100% load WBacking plate Rubber bushing Joint Section to be cut offWiring Hitachi Phase power supplyExplanation of control circuit terminals Explanation of main circuit terminalsAL0 SW1 OFF on Wiring of the main circuit Inverter Grounding bolt prepared by user Terminal layout Inverter model Charge lump Terminal layoutTerminal layout Inverter model Charge lump Inverter Motor Applicable peripheral equipment100 50/60 Hz ±5% 282 to 339 VDC 200 to 240 V +10%, -15%380 to 480 V +10%, -15% 50/60 Hz ±5%PL CM1 7 6 TH FW 8 CM1FW 8 CM1 14 13 11 AL1 CM1 15 CM2 12 AL0 AL2When using an external power supply When using the internal interface power supplySink logic Source logicBRD Operation Page ！ Warning Operating MethodsControl circuit terminal block Frequency-setting commandInput device control Device switch Names and functions of components How To Operate the Digital Operator OPE-SMonitor Power lamp Digit LED display Code display system and key operations Operation Corresponding to the function code. Data display *1*2 STR key after changing the data Parameter typePressing the STR key Display the monitor mode code. d001 is displayed ELB How To Make a Test RunKey to decelerate or stop the motor Key to start the motor RUN lamp green LED goes on PressCM1 PLC This chapter describes the functions of the inverter Explanation of FunctionsPage Output frequency monitoring Monitor ModeOutput current monitoring Rotation direction monitoringScaled output frequency monitoring Intelligent input terminal statusIntelligent output terminal status Power monitoring Torque command monitoringActual-frequency monitoring Torque bias monitoringCumulative power-on time monitoring Cumulative power monitoringHeat sink temperature monitoring Motor temperature monitoringLife-check monitoring Current position monitor in absolute position control modeProgram counter display easy sequence function Program number monitoring easy sequence functionTrip monitoring 1 to Programming error monitoringDC voltage monitoring BRD load factor monitoringOutput frequency setting Function ModeKeypad Run key routing Rotational direction restrictionRun command source setting Frequency source settingNo contact Active state C011 to C018 NC contactStop key enable Stop mode selectionDeceleration time tB Acceleration/deceleration time settingMaximum frequency setting Base frequency settingExternal analog input setting O, OI, and O2 +fO2 + fO2 Frequency operation functionFrequency addition function Start/end frequency setting for external analog inputStart/end frequency settings for the O2-L terminal External analog input O/OI/O2 filter setting16 V/f gain setting VPf 17 V/F characteristic curve selectionTo 400.Hz Free-setting V/f frequency Free-setting V/f frequencyTo free-setting V/f frequency 7 Hz To free-setting V/f frequency 6 HzTorque boost setting B083 DC braking DB setting Example 1-a Example 1-b Edge mode A056Example 2-a Example 2-b Example 3-a Example 3-bIi Example 6-a when the stop command is input Ii Example 5-a when the stop command is inputExample 7-b Edge modeExample 7-a When the O2-L terminal is used Frequency upper limit settingWhen the O-L or OI-L terminal is used Setting of 0 Hz disables the jump frequency function Acceleration stop frequency settingSetting of the length of time to stop Frequency setting AccelerationPID function OI + O2 OI-L + O2Operation targets include + O2 Input to the OI terminal Operation targets are the inputs To the OI and O terminals01 % FW on OFF FBV Onoff Two-stage acceleration/deceleration function 2CH You can set different patterns of motor acceleration Acceleration/deceleration curve selectionInverter Use functions A097 and A098 to select accelerationAccuracy Energy saving mode tuning A086Energy-saver operation Retry or trip after instantaneous power failure Power supply Inverter output Motor speed Example 6 b00401 Example 5 b00400Example 7 b00402 Example 8 b00400Function code Data Description Phase loss detection Phase loss power input protectionEnable Enabling the protection Disabling the protectionCharacteristic Constant-torque characteristicFree setting of electronic thermal characteristic Electronic thermal protectionSetting of the threshold level to output Setting of the current at each breakpointThermal warning signal Disabling the electronic thermal protectionOverload restriction/overload notice Overcurrent restraint Over voltage supression during deceleration Reduced voltage start function Start frequency settingClass Carrier frequency setting00/01 Invalid, 01 valid Frequency reduction Automatic carrier frequency reductionFunction code Range of data Description Automatic carrier Dynamic braking BRD function Cooling-fan operation settingIntelligent input terminal setting Input terminal a/b NO/NC selection By setting multispeeds 1 to 7 A021 to A027 Bit operation modeMake multispeed s 0 to 7 available for selection If two or more input terminals are turned on at the sameJog stop mode Jogging JG command setting43 2nd/3rd motor control function SET and SET3 Forcible-operation from terminal F-TM function Software lock SFT functionFree-run stop FRS function Commercial power source switching CS function Reset RS function Example 4 Restarting with active matching frequency Unattended start protection USP function Remote control function UP and DWNExternal trip EXT function 53 3-wire interface operation function STA, STP, and F/R55 P/PI switching function PPI Control gain switching function CASSpeed error at rated torque a Analog command holding function AHDIntelligent pulse counter Pcnt and PCC Synchronous rotation speed at base frequencyIntelligent output terminal setting Intelligent output terminal a/b NO/NC selection Example of operation as an alarm output terminalDisabling the output of frequency C042/C045 043/C046 63 0 Hz speed detection signal ZS Alarm code output function AC0 to AC3 Over-torque signal OTQLogical output signal operation function LOG1 to LOG6 Communication line disconnection signal NDc Capacitor life warning signal WACHeat sink overheat warning signal OHF Cooling-fan speed drop signal WAFStarting contact signal FR Forward rotation signal FWR Low-current indication LOC signalIrdy Inverter ready signal FWR Forward rotation signalMajor failure signal MJA Reverse rotation signal RVRRVR Reverse rotation signal MJA Major failure signalWCO/WCOI/WCO2 External thermistor function TH Output signal delay/hold functionInput terminal response time Pulse output terminal FM terminalFM siginal selection Function code Range of data DescriptionAM and AMI terminals Initialization setting Function code display restriction Explanation of Functions Last equivalent to the setting on SJ300 Selection of operation at option board error Automatic user-parameter settingStabilization constant setting Page Brake control function Brake Wait Time for Mechanical delay after the release Signal has been output until the brake isWait time longer than the delay after Release signal output until the releaseB054 B053 B052 When using this function, follow the instructions below Offline auto-tuning functionNormal end Abnormal end Automatically tuned data online auto-tuning enabled Online auto-tuning functionFunction code Data Description Temperature compensation Disabling the secondary resistance compensationMotor constants selection Then adjust the speed response H005/H205Io as follows Voltage class 200 or 400Sensorless vector control Zero LV lmit Sensorless vector, 0 Hz domain controlCurrent limiter for the low-speed range Zero LV starting boost currentForcing function FOC Torque monitoring functionOutput torque Motor capacity selectionTorque limitation function Reverse Run protection function Enable Enabling counterrotation preventionB041 B042 B044 B043 Disabling counterrotation preventionHigh-torque multi-motor operation Torque LAD stop functionPersonal computer Windows system Easy sequence functionFunctions requiring the SJ-FB 2 V2 control pulse settingOperation Torque limiter level Vector control with encoder feedbackTorque-limited operation at Torque control function Torque biasing functionControl block diagram Pulse train position control modeFrequency command Hz = 255SBP ＳＢＰ MD1 Forward/reverse operation command with pulse trainP019 = 01 REF Electronic gear functionP019 = 00 FB Main motor Sub-motor Example of use Synchronous operationMaster inverter Slave inverter Count of encoder Motor gear ratio setting functionSetting of the actual pulse Home search function １０２４３０７２２０４８ Absolute position control mode Operation Output frequency Speed setting POK signal Operation in absolute position control modeSpeed/position switching function SPD Multistage position switching function CP1/CP2/CP3Forward direction at the low-speed Forward/reverse drive stop function FOT/ROT Position range specification functionTeaching function Teaching selection P074SON Fwrv Servo-on functionSetting of the filter time constant for Block diagram for pulse train frequency inputPulse train frequency input To +100. % Pulse train frequency limitCommunication Functions Communication specificationsCommunication mode Set this item when your inverter isAscii mode Selection Modbus-RTU modeExplanation of Functions Communication in Ascii mode STX 0101000500 BCC CR 0230 3130 3130 30 30 35 30 3030 350D Data to be transmitted Explanation of Functions Response frame Frame format Inverter status a Inverter status B Inverter status C DataData Bytes See Note Status a Status B Status C ReservedInverter status B Bytes Data monitored at trippingInverter status C Bytes Bytes Decimal Ascii code Output currentResponse frame Positive response Frame format Station No. Command ParameterData parameter number Bytes See Note Station NoParameter data decimal Ascii Bytes See Note Code Station No. Command Parameter DataStation No. Command Data Bytes Enabling data storage Explanation of Functions Ii Negative response Response frame Frame format Reference Ascii code conversion table Transmission frame configuration Station No. CommandThis result is used as BCC Character data Ascii codeCommunication in Modbus-RTU mode Reads the coil status Function code Maximum number of dataReads registers Writes data to a coilCRC*1 Code Description Slave address Function code Exception code CRC-16An unsupported function is specified Specified address is not foundTerminal status Intelligent input terminal Coil numberRead the data received in the response as follows Coil status Field name Sample settingUpdating data upper digit FFh Updating data lower digitIntelligent input terminal Query Response Field name Sample settingException codes Slave address Function code Exception code CRC-16 code01h An unsupported function is specified 02h Specified address is not foundStoring the register data Data to be written DescriptionRecalculating the motor constants Coil No Setting LOG2 logical operation result ON, 0 OFF Ii List of registers frequency settings and trip monitoring Register Function name Monitoring and setting items Data List of inverter trip factors Option 1 error 0 toOption 2 error 0 to Iv List of registers Iii List of registers monitoringList of registers function modes Start frequency to Monitoring and setting items Data resolution 12B4h Failure time Monitoring and setting items Data resolution Register During inverter operation including 5 minutes after EXT external trip, 13 USP unattended start Thermal overload, 07 LAD frequency, 09 motor C042 high 1487h Output 11 off-delay time C131 1506h Over-speed error detection level P026 Setting To the allowable maximum frequency Code data Vi List of registers 2nd control settings 2506h Motor Ix List of registers 3rd control setting Viii List of registers 3rd control settingsError Codes and Troubleshooting ···················· 5 Error CodesPage Error Codes Error Codes and TroubleshootingCPU GA.COM Adjust Option boards error codes Input mode specified by switch settings = 29 hexadecimal = 41 decimal Setting of MAC ID DIP switches No to NoBaud rate Kbps DIP switch setting Error code is output when the relevant program runs Trip conditions monitoring 305 A004/A204/A304 A202/A220/A320 *2 006 Ground Resistance Test with a Megger Precautions for MaintenanceMethod of Checking the Inverter DC-Bus Capacitor Life CurvePage Cleaning Precautions for Maintenance and InspectionDaily inspection Periodic inspectionGround terminals with a megger Daily and Periodic InspectionsWithstand Voltage Test Ground Resistance Test with a MeggerMethod of Checking the Inverter and Converter Circuits Output of Life Warning DC-Bus Capacitor Life CurveMotor 2W 220ｋΩ PfIN＝Method to measure the output voltage Specifications External dimensions SpecificationsPage Specifications of the 200 V class model SpecificationsSpecifications of the 400 V class model Common specifications of 200 V class and 400 V class modelsStandard Model name type 055 075 110 150 185 220 300 370 450 550 Name SJ700-150 to 220 LFF2/LFUF2 / HFF2/HFEF2/HFUF2 External dimensionsSJ700-055 to110LFF2/LFUF2 / HFF2/HFEF2/HFUF2 SJ700-300 LFF2/LFUF2 / HFF2/HFEF2/HFUF2 SJ700-550 LFF2/LFUF2 Monitoring Mode Function Mode Extended Function Mode List of Data SettingsPage Precautions for Data Setting Function Mode Extended Function Mode PID AVR B004 Failure/under-voltage trip alarm To stop Enable Power Free-setting V/f voltage To 800.0 Input Analog C107 AMI gain adjustment To 200. % Setting C163 Input terminal response time To 200. ¯2ms Control Control RPM Specification List of Data Settings Allowed or Not No/d001 to P131 Upgrading from the SJ300 Series AppendixCopying the parameter settings Index Instantaneous power failure High-resolution absolute position Control 106Instantaneous power failure or Monitor mode Motor constantPhase loss input Phase loss input protection Operation time over signal RNT/plug-in time over signalRemote operator Appendix-1 Reset Running time over / power-on time OverWindow comparator Wiring of control circuit terminal Gain setting VP 1.7 th powerThermistor Torque biasing