AC Variable Speed Drive
Contents
1. gt If the DMM indicates the resistance of several hundred KO or less It is normal 2 Measure the resistance value of D2 by placing the red lead from positive terminal of DMM on DCP and placing black lead from negative terminal of DMM on S phase gt If the DMM indicates the high resistance several MQ It is normal 3 Inthe same way Measure the resistance values of other diodes Electrolytic capacitors DCN Tr4 Tr6 Tr2 Caution Before testing check the discharge of electrolytic capacitor DCP DCN LSIs 3 Maintenance Checking the IGBT Tr6 1 Measure the resistance value of Tr6 by placing the red lead from positive terminal of DMM on DCN and placing black lead from negative terminal of DMM on V phase gt If the DMM indicates the resistance of several hundred KQO or less It is normal 2 Measure the resistance value of Tr6 by placing the red lead from positive terminal of DMM on V phase and placing black lead from negative terminal of DMM on DCN gt Ifthe DMM indicates the high resistance several MQ It is normal 3 Inthe same way Measure the resistance values of other IGBTs D1 DCP DCP Charge Charge resistor resistor RO SCR1 SCR2 SCR3 Electrolytic SO capacitors WN TO D4 D5 D6 o o DCN 14 T6 Tr2 Caution Before testing check the discharge of electrolytic capacitor DCP DCN LSIs 3 Maintenance 3 1 5 Replacement of the2. Is the circuit breaker correctly rated Are the motor output cables connected in the correct phase rotation U VW Caution motors will rotate in reverse direction if three phase cables are not wired in the correct rotation Power Terminal Are the cables used in the power terminal connections correctly rated Wiring Is the inverter grounded correctly Are the power terminal screws and the ground terminal screws tightened to their specified torques Are the overload protection circuits installed correctly on the motors if multiple motors are run using one inverter Is the inverter separated from the power source by a magnetic contactor if a braking resistor is in use Are advanced phase capacitors surge protection and electromagnetic interference filters installed correctly These devices MUST not be installed on the output side of the inverter 1 Basic Checklist Check Point Result Are STP shielded twisted pair cables used for control terminal wiring Is the shielding of the STP wiring properly grounded If 3 wire operation is required are the multi function input terminals defined prior to the installation of the control wiring connections Control ired Terminal Wiring Are the control cables properly wired Are the control terminal screws tightened to their specified torques Is the total cable length of all control wiring lt 165ft 50m Is the total length of safety
3. The inverter becomes hot during operation Avoid touching the inverter until it has cooled to avoid burns Do not allow foreign objects such as screws metal chips debris water or oil to get inside the inverter Allowing foreign objects inside the inverter may cause the inverter to malfunction or result in a fire Do not operate the inverter with wet hands Doing so may result in electric shock Caution Do not modify the interior workings of the inverter Doing so will void the warranty The inverter is designed for 3 phase motor operation Do not use the inverter to operate a single phase motor Do not place heavy objects on top of electric cables Doing so may damage the cable and result in an electric shock Revision Record Changed main contents V1 0 2015 03 First edition Version Date Association page 1 Basic Checklist 1 1 Before You Think It Is Failure Items Check Point Result Are the power source cables correctly connected to the R S T terminals of the inverter Caution connecting the power source to the U V W terminals may damage the inverter Is the installation location appropriate Installation Does the environment meet the inverter s operating conditions Location Input Output voltage Does the power source match the inverter s rated input Is the inverter s rated output sufficient to supply the equipment Is a circuit breaker installed on the input side of the inverter
4. Check the Check and manage Voltmeter device normal display value specified values ammeter etc on the panel Motor Is there any Visual No abnormality z LSIs abnormal vibration or noise Is there any abnormal smell inspection Check for overheating or damage 3 Maintenance 3 1 2 Annual inspections Inspection Inspection Inspection Inspection equipment method standard equipment method Judgment standard All Megger test Disconnect Must be above 5 between inverterand MOQO input output short terminals and and R S T U V W earth terminal terminals and then measure from each terminal to the ground terminal using a Megger Is there anything Tighten up all No abnormality loose in the screws device Is there any evidence of parts inspection overheating DC 500 V Megger Cable Are there any Visual No abnormality connection corroded cables inspection Is there any Input Outpu damage to cable t circuit insulation Terminal Is there any Visual No abnormality block damage inspection Smoothing Measure Measure with on Capacity over Capacity meter condenser electrostatic capacity capacity meter Relay Is there any Visual No abnormality chattering noise inspection during operation Is there any Visual damage to the inspection contacts Is there any Digital multimeter damage from inspection analog tester resistance Ch
5. will result in severe injury or death AN Warning Indicates a potentially hazardous situation which if not avoided could result in injury or death Caution Indicates a potentially hazardous situation that if not avoided could result in minor injury or property damage Safety information A Danger e Do not open the cover of the equipment while it is on or operating Likewise do not operate the inverter while the cover is open Exposure of high voltage terminals or charging area to the external environment may result in an electric shock Do not remove any covers or touch the internal circuit boards PCBs or electrical contacts on the product when the power is on or during operation Doing so may result in serious injury death or serious property damage e Do not open the cover of the equipment even when the power supply to the inverter has been turned off unless it is necessary for maintenance or regular inspection Opening the cover may result in an electric shock even when the power supply is off e The equipment may hold charge long after the power supply has been turned off Use a multi meter to make sure that there is no voltage before working on the inverter motor or motor cable vi A Warning This equipment must be grounded for safe and proper operation Do not supply power to a faulty inverter If you find that the inverter is faulty disconnect the power supply and have the inverter professionally repaired
6. 2 4 Diode Module IGBT Module SS D1 DCP Charge Charge resistor resistor Electrolytic i capacitors E aaa a a aa aaa ae i DCN i r4 TG 2 Testing method 1 Disconnect all power cables R S T and motor output cables U V W 2 Before testing check the discharge of electrolytic capacitor DCP DCN 3 When the circuit is open the DMM indicates a high resistance several MQ In some situations the DMM may indicate a closed circuit low resistance and then indicate a high resistance due to the capacitors When the circuit is closed the DMM indicates a resistance of several hundred kQ or less 4 Displayed values may not be constant as they depend on the module and tester type However the value measured between phases can be considered satisfactory if the measured value is within 10 Test Polarity Test Polarity wit Module Check Value R DOP Closed OR DCN Open Module DCN ORO Closed Closed DCN Closed h Closed me DCN Open DCP Open DCN Closed aor a Closed A DCN Open CP Open DCN Closed ay Closed us DCN Open DCP Open DCN Closed J LSIs 3 Maintenance Checking the diode module and IGBT module samples Checking the Diode D2 1 Measure the resistance value of D2 by placing the red lead from positive terminal of DMM on S phase and placing black lead from negative terminal of DMM on DCP
7. a connection Check the magnetic contactor on the output side fault The output wiring ts faulty Check the output wiring MO DEB OAY Type Description i Displayed when a fault condition occurs in the inverter Fan Latch cooling fan Trip Remedy Cause A foreign object is obstructing ae Remove the foreign object from the air inlet or outlet the fan s air vent The cooling fan needs to be Replace the cooling fan Refer to 3 1 38 Replacement of the cooling replaced fan MO DED ISe y Type Description The inverter turns off its output if the DC voltage of the main circuit increases higher than 400 V when the motor decelerates This fault can also occur due to a surge voltage generated at the power supply system Over Voltage Trip Latch Cause Remedy The input voltage is too high Determine if the input voltage is above the specified value The actual DC link voltage is different from the displayed value Need to inspect hardware Contact the retailer or the LSIS customer service center Deceleration time is too short for the load inertia GD2 Increase the acceleration time A generative load occurs at the inverter outout Use the braking unit LS Is M 2 Troubleshooting KOIDE DIN OEA Type Description OW Displayed when internal DC circuit voltage is less than the Voltage Level F Tri specified value rip Cause Remedy The input voltage i
8. motor output cable is Determine if the cable on the output side is wired incorrect correctly to the phase U V W of the motor The signal connection between the control circuit terminal forward reverse rotation of the inverter and the forward reverse rotation signal on the control panel side is incorrect Check the forward reverse rotation wiring The motor only rotates in one direction Cause Remedy Reverse rotation prevention is selected Remove the reverse rotation prevention The reverse rotation signal is not provided Check the input signal associated with the 3 wire even when a 3 wire sequence Is selected operation and adjust as necessary The motor is overheating Cause Remedy Reduce the load Increase the Acc Dec time The load is too heavy Check the motor parameters and set the correct values Replace the motor and the inverter with models with appropriate capacity for the load ie AVTIGIEME EN eee Gr Uns TEETE 182 Lower the ambient temperature of the motor Use a motor that can withstand phase to phase voltages surges greater than the maximum surge The phase to phase voltage of the motor is VOltage insufficient Only use motors suitable for apllicatiosn with inverters Connect the AC reactor to the inverter output set the carrier frequency to 2 kHz in H39 The motor fan has stopped or the fan is obstructed with debris Check the motor fan and remove any foreign objects LS IS m 2
9. wiring is short circuited Check the output wiring Check the output wiring Ensure that the total cable length between the inverter and the motor is less than 200m 50m for motors rated 3 7 kW or lower There is a inverter motor connection problem Refer to 3 1 4 Checking the Input Output Modules on page38 and There is a fault with the output check a fault with the output module IGBT module IGBT Do not operate the inverter Contact the retailer or the LSIS customer service center KOIDE DIN OEA Type Description The inverter turns off its output when a ground fault occurs and the ground fault current is more than the internal setting value of the inverter Cause Remedy A ground fault has occurred in the inverter output wiring Check the output wiring Check the output wiring Ensure that the total cable length between the inverter and the motor is less than 200m 50m for motors rated 3 7 kW or lower There is a inverter motor connection problem The motor insulation is damaged Replace the motor Noise occurs in the peripherals Change the carrier frequency to the minimum value in H39 Li 2 Troubleshooting KOIDE DIN OEA Type Description PE inverter turns off its output when the output current of Latch the inverter flows more than the rated level 150 for 1 Overload minute Oecd The inverter turns off its output if the output current of the Latch inverter flows at
10. 1 Basic Checklist E Operation Keys The following table lists the names and functions of the keypad s operation keys Name Description RUN Key Used to run the inverter inputs a RUN command STOP RESET STOP stops the inverter Key RESET resets the inverter following fault or failure condition Key A Key V Key pti between codes or to increase or decrease parameter Switch between groups or to move the cursor during parameter setup or modification ENT Key Used to select confirm or save a parameter value Caution Install a separate emergency stop switch in the circuit The STOP RESET key on the keypad works only when the inverter has been configured to accept an input from the keypad lt 4 Key gt Key 11 1 Basic Checklist 1 3 Parameter Change 1 3 1 Carrier Frequency Change The following example demonsirates how to configure Carrier Frequency by modifying code H39 Carrier Frequency in the Function group 2 from 5 00 Hz to 10 00 Hz You can configure the parameters for different codes in any other group in exactly the same way 4 B A lt gt Step Instruction Keypad Display 1 Go to code H39 Carrier Frequency in the Function group 2 Press the ENT key The current Carrier Frequency value 5 00 for code H39 is displayed Press the 4 key 2 times to move to the 1s place value Number 5 at the 1s place position will flash Press th
11. 150 of the inverter rated current for more trip e than the current limit time 1 min Cause Remedy n p Roran meN ne Ensure that the motor and inverter have appropriate capacity ratings motor s rated capacity Refer to 3 1 4 Checking the Input Output Modules on page38 and There is a fault with the output check a fault with the output module IGBT module IGBT Do not operate the inverter Contact the retailer or the LSIS customer service center The load is greater than the Replace the motor and inverter with models that have increased rated motor capacity Capacity ra PTER cl pros Reduce the torque boost level Acc Dec time is too short compared to load inertia GD2 moraes ASCE slits KOIDE DINO hy Type Description EE Over Heat arch _ when the tempertature of the inverter heat sink Trip exceeds the specified value Cause Remedy There Se POCEN sulle i Determine if a foreign object is obstructing the air inlet outlet or vent cooling system The inverter cooling fan has been operated for an extended Replace the cooling fan Refer to 3 1 3 Replacement of the cooling period fan es SES ae ete Keep the ambient temperature below 50 C 23 2 Troubleshooting LCD Display Type Description ey Output Displayed when a 3 phase inverter output has one or more Phase Latch ae a Open phases in an open circuit condition Cause Remedy The magnetic contactor on the output side has
12. ISION RECORD 4 BASIC CHECKLIST 1 1 Before You Think It Is Failure 1 2 Basic Operations 1 3 Parameter Change 1 3 1 Carrier Frequency Change 1 3 2 Initializing All Parameters 1 3 3 Read and Write Parameters 1 4 Fault Trip Monitoring o TROUBLESHOOTING 2 1 Trips and Warnings 2 1 1 Fault Warning List 2 1 2 Troubleshooting Fault Trips 2 2 Troubleshooting Other Faults 3 MAINTENANCE 3 1 Regular Inspection Lists 3 1 1 Daily Inspections 3 1 2 Annual inspections 3 1 3 Bi annual Inspections 3 1 4 Checking the Input Output Modules 3 1 5 Replacement of the cooling fan 3 2 Storage and disposal 3 2 1 Storage 3 2 2 Disposal NOA W W 10 12 12 13 14 15 18 18 19 21 28 34 35 35 36 37 38 42 44 44 44 Introduction Manual Composition 1 Basic Checklist 1 1 Before You Think It Is Failure When the problem of inverter occur you can check the basic checklist before you think it is failure in these pages 1 2 Basic Operations 1 3 Parameter Change 1 3 1Carrier Frequency Change 1 3 2Initializing All Parameters 1 3 3Read and Write Parameters check the set up of parameter using basic operations first and then 1 4 Fault Trip Monitoring check the trip record 2 Troubleshooting a T There are troubleshooting fault trips amp Tri d Warni v other faults in these pages S pS ano Krarmninos 2 1 1Fault Warning List lf problems are not resolved please 2 1 2Troubleshooting Fault Trip
13. LSS 0 4 22kW 200V 400V AC Variable Speed Drive iG5A Troubleshooting Manual EMEA se ss O 4 l amp ES nio Be is a LLL AX Safety Instructions Read this manual carefully before servicing or inspecting this equipment Keep this manual within easy reach for quick reference Quick Reference Table The following table contains situations frequently encountered by users while working with inverters Refer to the typical and practical situations in the table to quickly and easily locate answers to your questions Situation Reference The motor is too noisy P 32 want to review recent fault trio and warning histories P 15 The motor runs too hot P 29 The cooling fan does not work P 33 want to know how can keep the inverter when don t use it P 44 ERR message is displaying on keypad P 19 want to initialize the parameter P 13 want to scrap the inverter P 44 want to review the input output module P 38 want to change the FAN when it exceed replacement period P 42 want to change the carrier frequency P 12 cannot set the parameter P 28 The motor does not work P 32 The motor stop when it accelerate the speed or connect the load P 30 Contents SOD LE ME A LL LE LE le le all _ u a a TAX AAA AAAAABAEA SSE Es INTRODUCTION Manual Composition PRODUCT IDENTIFICATION ASSOCIATION MANUAL SAFETY INFORMATION REV
14. Troubleshooting The motor stops during acceleration or when connected to load Cause Remedy Reduce the load The load is too high Replace the motor and the inverter with models with Capacity appropriate for the load The motor does not accelerate The acceleration time is too long Cause Remedy The frequency command value is low Set an appropriate value Reduce the load and increase the acceleration time Check the mechanical brake status The acceleration time is too long Change the acceleration time The load is too high The combined values of the motor properties and the inverter parameter are incorrect The stall prevention level during acceleration is low The stall prevention level during operation is low Change the motor related parameters Change the stall prevention level Change the stall prevention level Change to vector control operation mode If the fault is Starting torque is insufficient still not corrected replace the inverter with a model with increased capacity Motor speed varies during operation Cause Remedy Replace the motor and inverter with models with There is a high variance in load increased capacity The input voltage varies Reduce input voltage variation Motor speed variations occur at a specific frequency Adjust the output frequency to avoid a resonance area The motor rotation is different from the setting Set a V F pattern th
15. at is suitable for the motor The V F pattern is set incorrectly specification 30 2 Troubleshooting The motor deceleration time is too long even with Dynamic Braking DB resistor connected Cause Remedy The deceleration time is set too long Change the setting accordingly lf motor parameters are normal it is likely to be a motor The motor torque is insufficient capacity fault Replace the motor with a model with increased capacity The load is higher than the internal torque limit Replace the inverter with a model with increased determined by the rated current of the inverter capacity Operation is difficult in under load applications Cause Remedy The carrier frequency is too high Reduce the carrier frequency Over excitation has occurred due to an inaccurate V F setting at low speed Reduce the torque boost value to avoid over excitation While the inverter is in operation a control unit malfunctions or noise occurs Cause Remedy Ree eet ot Change the carrier frequency to the minimum value in Noise occurs due to switching inside the H39 inverter Install a micro surge filter in the inverter output When the inverter is operating the earth leakage breaker is activated Cause Remedy Connect the inverter to a ground terminal Check that the ground resistance is less than 100Q for 200V inverters and less than 10Q for 400V inverters Check the capacity of the earth leakage breaker a
16. cooling fan lf operation is continued after cooling fan trip occurs Overheat trip may happen and protective function be activated It also reduces the life of main components due to rise in inverter inner temperature When the fan has been operated for an extended duration the inverter can be damaged or their lifecycle reduced Standard replacement interval of the cooling fan is 3years Replace the old cooling fan with a new one periodically Methods of replacement of the cooling fan can be categorized as following frames Frame Capacity A Frame SV004 008iG5A 2 4 B Frame SV015iG5A 2 4 C Frame SV022 040iG5A 2 4 D Frame SV055 075iG5A 2 4 E Frame V110 150iIG5A 2 4 F Frame SV185 220iIG5A 2 4 Replacement of the A C Frame FAN SV004 040iG5A 2 4 1 Remove the fan cover by holding hooks of the fan cover j j j J j j k A Frame B Frame C Frame LSIs 3 Maintenance Replacement of D Frame FAN SV055 075iG5A 2 4 1 Remove the fan cover by holding hooks of the fan cover QQ WIRY D Frame For replacement of E F Frame FAN Contact the retailer or the LSIS customer service center Caution e Before replacing the Fan Turn off the power supply and ensure all DC voltage has been fully discharged for about 3 minutes e Be careful not to get caught the fan wire and connector in wings of the fan as it may result in damage to the inverter e Reinstall the fa
17. e A key to change the value to 0 to match the 1s place value of the target value 10 00 Press the lt 4 key to change the value 4 to 1 to match the 10s place value of the target value 10 00 and then press the ENT key All parameter digits will flash on the display Press the ENT key once again to save the changes 5 Code H39 will be displayed The parameter change has been completed ee 12 1 Basic Checklist Adjust motor operational noise by changing carrier frequency settings Power transistors IGBT in the inverter generate and supply high frequency switching voltage to the motor The switching speed in this process refers to the carrier frequency If the carrier frequency is set high it reduces operational noise from the motor and if the carrier frequency is set low it increases operational noise from the motor Below are advantages and disadvantages according to the sound of the inverter during operation Carrier Frequency Item Eo HIGH Motor noise generation l f generation l f current t 1 3 2 Initializing All Parameters The following example demonstrates parameter initialization using code H93 Parameter Initialization in the Function group 2 Once executed parameter initialization will delete all configuration values for all codes and groups Step Instruction Keypad Display 1 Go to code HO in the Function group 2 Press the ENT key The current parameter val
18. eck for Disconnect Must be within disconnection one side and 10 of the rated measure with value of the resistor a tester Control Operation Check for output Measure Balance the voltage Digital multimeter circuit check voltage imbalance voltage between phases or DC voltmeter Shaiea far while the inverter is between the within 4V for 200V AN in operation inverter output series and within 8V terminal U V for 400V series W LSIs Inspection equipment Is there an error in the display circuit after the sequence protection test Inspection Judgment method standard Are any of the fan parts loose Cooling fan Cooling system Is the display value normal Display 3 1 3 Bi annual Inspections Inspection equipment Megger test Judgment standard Insulation resistance Inspection method output and earth terminals Caution Test the between the input 3 Maintenance Inspection equipment Inspection method Judgment standard The circuit must inverter output work according to protection in the sequence both short and open circuit conditions Check all connected parts and tighten all SCrews Check the command value on the display device No abnormality Specified and managed values must match Voltmeter Ammeter etc Inspection equipment DC 500 V Megger Inspection method Disconnect the cables for te
19. escription Over Displayed when inverter output current exceeds 200 of Latch Current the rated current Cause Remedy Acc Dec time is too short compared to load inertia GD2 Increase Acc Dec time The inverter load is greater than the rated capacity Replace the inverter with a model that has increased capacity The inverter supplied an output Operate the inverter after the motor has stopped or use the speed while the motor was idling search function Cn 60 The mechanical brake of the motor is operating too fast Check the mechanical brake Output wiring is short circuited or Remove a short circuit and ground fault and check the motor a ground fault has occurred Check the output wiring Ensure that the total cable length between the inverter and the motor is less than 200m 50m for motors rated 3 7 kW or lower There is a inverter motor connection problem Refer to 3 1 4 Checking the Input Output Modules on page38s and There is a fault with the output check a fault with the output module IGBT module IGBT Do not operate the inverter Contact the retailer or the LSIS customer service center 21 2 Troubleshooting KOIDE DINO hy Type Description ie Over oe _ when the DC circuit in the inverter detects a Current2 specified level of excessive short circuit current Cause Remedy Acc Dec time is too short compared to load inertia GD2 Nerease Acc Dec time Output
20. input off its output Normal close contact input When a P8 terminal set to Ext Latch trip B is OFF Open inverter displays the fault and turns off its output External fault B contact input Cause Remedy The terminal setto 18 External Eliminate the cause of fault at circuit connected to external fault fault A or 19 External fault B terminal or cause of external fault input in 120 124 in I O group is ON se MO DEB ISe V Type Description When inverter operation is set via Analog input 0 10V or Level 0 20mA input or option RS485 and no signal is applied operation is done according to the method set in 162 No frequency command Operating method when the frequency reference is lost Cause Remedy AE frequency SNIENE Check the wiring of V1 and and frequency reference level applied to V1 and l MO DED ISe y Type Description henley Displayed when inverter and remote keypad does not or Err ypad atch communicate each other It does not stop Inverter communicatio oberster n error p l Cause Remedy Communication error between inverter keypad and remote Check for connection of communication line and connector keypad 26 2 Troubleshooting MO DED ISe V Type Description Bran When Break control if rating current flows below than set control Latch error value cut off the output without break open Cause Remedy Break open current is not flo
21. l is provided the trio or warning signal disappears e Fatal When the fault is corrected the fault trip or warning signal disappears only after the user turns off the inverter waits until the charge indicator light goes off and turns the inverter on again If the inverter is still in a fault condition after powering it on again please contact the supplier or the LSIS customer service center 18 2 Troubleshooting 2 1 1 Fault Warning List The following list shows the types of faults and warnings that can occur while using the iG5A inverter Category LCD Display Details Page error 2 Troubleshooting LCD Display Details Page Category es Operating method when the P96 frequency command is lost Level type Low voltage fault trip P 25 Brake control error P 27 Fatal type E g Hardware fault P 27 Warning Over load warning Overload Protection IOLT IOLT inverter Overload Trip protection is activated at 150 of the inverter rated current for 1 minute and greater OLT OLT is selected when F56 is set to 1 and activated at 200 of F57 Motor rated current for 60 sec in F58 This can be programmable IG5A is not provided with Over speed Protection 20 2 Troubleshooting 2 1 2 Troubleshooting Fault Trips When a fault trip or warning occurs due to a protection function refer to the following table for possible causes and remedies KOIDEDIN OEN Type D
22. lete stop when the inverter output stops Cause Remedy Adjust the DC braking parameter It is difficult to decelerate sufficiently because increase the set value for the DC braking current DC braking is not operating normally Increase the set value for the DC braking stopping time 32 2 Troubleshooting The output frequency does not increase to the frequency reference Cause Remedy The frequency reference is within the jump Set the frequency reference higher than the jump frequency range frequency range The frequency reference is exceeding the Set the upper limit of the frequency command higher upper limit of the frequency command than the frequency reference Because the load is too heavy the stall Replace the inverter with a model with increased prevention function is working capacity The cooling fan does not rotate The control parameter for the cooling fan is set incorrectly Check the control parameter setting for the cooling fan 33 3 Maintenance 3 Maintenance This chapter explains how to replace the cooling fan the regular inspections to complete and how to store and dispose of the product An inverter is vulnerable to environmental conditions and faults also occur due to component wear and tear To prevent breakdowns please follow the maintenance recommendations in this section Caution e Before you inspect the product read all safety instructions contained i
23. mand source setting incorrectly The operation command source is set Check the operation command source setting incorrectly Power is not supplied to the terminal R S T Check the terminal connections R S T and U V W The charge lamp is turned off Turn on the inverter The operation command is off Turn on the operation command RUN The motor is locked Unlock the motor or lower the load level The load is too high Operate the motor independently An emergency stop signal is input Reset the emergency stop signal The wiring for the control circuit terminal is Check the wiring for the control circuit terminal incorrect The input option for the frequency command Check the input option for the frequency command is incorrect The input voltage or current for the frequency Check the input voltage or current for the frequency command is incorrect command The PNP NPN mode is selected incorrectly Check the PNP NPN mode setting The frequency command value is too low Check the frequency command and input a value above the minimum frequency The STOP RESET key is pressed Check that the stoppage is normal if so resume operation normally Motor torque is too low Change the operation modes V F IM and Sensorless If LS IS 28 2 Troubleshooting the fault remains replace the inverter with a model with increased capacity The motor rotates in the opposite direction to the command Cause Remedy The wiring for the
24. n in reverse order of removal method Before operating inverter ensure the fan operation is normal after turning on the power supply e Be careful about the direction of the fan LSIs 3 Maintenance 3 2 Storage and disposal 3 2 1 Storage If you are not using the product for an extended period store it in the following way Store the product in the same environmental conditions as specified for operation e When storing the product for a period longer than 3 months store it between 10 C and 30 C to prevent depletion of the electrolytic capacitor e Do not expose the inverter to snow rain fog or dust e Package the inverter in a way that prevents contact with moisture Keep the moisture level below 70 in the package by including a desiccant such as silica gel 3 2 2 Disposal When disposing of the product categorize it as general industrial waste Recyclable materials are included in the product so recycle them whenever possible The packing materials and all metal parts can be recycled Although plastic can also be recycled it can be incinerated under controlled conditions in some regions Caution lf the inverter has not been operated for a long time capacitors lose their charging characteristics and are depleted To prevent depletion turn on the product once a year and allow the device to operate for 30 60 min Run the device under no load conditions LSIs
25. n this manual e Before you clean the product ensure that the power is off e Clean the inverter with a dry cloth Cleaning with wet cloths water solvents or detergents may result in electric shock or damage to the product 34 3 Maintenance 3 1 Regular Inspection Lists 3 1 1 Daily Inspections Inspection method Judgment standard Inspection equipment Is the ambient temperature and humidity within the foreign objects present Inspection Judgment standard equipment Inspection method No icing ambient Thermometer temperature 10 hygrometer Refer to 2 Ambient dean nae a Installation amp 40 and no d environment lt hie ie ust or Wiring on condensation COEN y User manual ambient humidity below 50 Is there any Visual All Inverter abnormal vibration No abnormality ean inspection or noise Measure voltages Are the input and Refer to 13 1 P ea output voltages Saa A S Technical data on a muumeer g normal P User manual the inverter terminal block Is there any leakage from the inside Visual Input Output Smoothing inspection No abnormality circuit Capacitor l Is the capacitor swollen Cooling Cooling fan Is there any Turn off the Fan rotates system abnormal vibration system and Smoothly or noise check operation by rotating the fan manually Display Measuring Is the display value
26. nd make the appropriate connection based on the rated current of the inverter An earth leakage breaker will interrupt the supply if current flows to ground during inverter operation Lower the carrier frequency in H39 Make the cable length between the inverter and the motor as short as possible 31 2 Troubleshooting The motor vibrates severely and does not rotate normally Cause Remedy Check the input voltage and balance the voltage Phase to phase voltage of 3 phase power source is not balanced Check and test the motor s insulation The motor makes humming or loud noises Cause Remedy Resonance occurs between the motor s Slightly increase or decrease the carrier frequency in natural frequency and the carrier frequency H39 Slightly increase or decrease the carrier frequency natural frequency and the inverter s output Use the frequency jump function to avoid the frequency frequency band where resonance occurs Resonance occurs between the motor s The motor vibrates hunts Cause Remedy A A ERE teen tee ieee T ee In situations of noise inflow on the analog input side that q Male results in command interference change the input filter Tao COI Tete time constant In 07 IN22 Ensure that the total cable length between the inverter Mitac lorthceh between the inverter and the Shd the motor is less than 200m 50m for motors rated g 3 7 kW or lower The motor does not come to a comp
27. ollowing example E Record of fault types Hil gt CED gt H0 A Operating status at fault HOY Frequency arr A nok uw it J A J Accel Decel Current Information 16 1 Basic Checklist Current Fault during Accel Accel Decel dg EL Fault during Decel Information Fault types Fault during constant run E Reset fault record i J Change the value to T and then press the ENT key 17 2 Troubleshooting This chapter explains how to troubleshoot a problem when inverter protective functions fault trips warning signals or a fault occurs If the inverter does not work normally after following the suggested troubleshooting steps please contact the LSIS customer service center 2 1 Trips and Warnings When the inverter detects a fault it stops the operation trios or sends out a warning signal When a trip or warning occurs the keypad displays the information briefly If the LCD keypad is used detailed information is shown on the LCD display Users can read trip message when a fault occurs during operation in nOn code of drive group Up to 5 trips information is stored The fault conditions can be categorized as follows e Level When the fault is corrected the trip or warning signal disappears and the fault is not saved in the fault history e Latch When the fault is corrected and a reset input signa
28. rminals U V W and test the wiring Judgment standard Must be above 5 MQ Do not run an insulation resistance test Megger on the control circuit as it may result in damage to the product LSIs 3 Maintenance 3 1 4 Checking the Input Output Modules How to check the diode module and IGBT module SV004 075iG5A 2 4 Diode Module M C IGBT Module ea SSS aS LB a aT aa Charge registor Electrolytic Capacitors DCN i t0r4 i TT Testing method 1 Disconnect all power cables R S T and motor output cables U V W 2 Before testing check the discharge of electrolytic capacitor DCP DCN 3 When the circuit is open the DMM indicates a high resistance several MQ In some situations the DMM may indicate a closed circuit low resistance and then indicate a high resistance due to the capacitors When the circuit is closed the DMM indicates a resistance of several hundred kQ or less 4 Displayed values may not be constant as they depend on the module and tester type However the value measured between phases can be considered satisfactory if the measured value is within 10 Test Polarity Test Polarity Check Value Module Check Value O EEC f en com crs R Open pen R Cose a Closed ae EA Closed oP a Open oa Closed Open Closed LSI N 3 Maintenance How to check the diode module and IGBT module SV110 2201IG5A
29. s contact your vendor or LSIS 2 2 Troubleshooting Other Faults 3 1 Regular Inspection Lists g sea Dene gulel aii 3 1 1Daily Inspections lt Ists In these pages 3 1 2Annual inspections 3 1 3Bi annual Inspections 3 1 4Checking the Input Output Modules 3 1 5 Replacement of the cooling fan When the problem of inverter occur please check the input output module that is basic hardware check method 3 2 Storage and disposal 3 2 1Storage 3 2 2Disposal LSIs Product Identification Model name SV055iG5A 2 Ja Power source INPUT 200 230V 3 Phase C specifications 35 0A 50 60Hz OUTPUT 0 Input V 3 Phase e Output 0 1 400Hz innti c US specifications Ser No 12030100001 LISTED EE Inspected by K D Hong Brza NE SV 055 IGDA 2 Motor capacity ee 004 0 4kw 055 5 5kw 008 0 75kw 075 7 5kw 015 1 5kw 110 11 0kw 022 2 2kw 150 15 0kw 037 3 7kw 185 18 5kw 040 4 0kw 220 22 0kw Series name Input voltage 1 Single phase 200 230 V 2 3 phase 200 230 V A Oo _L Association Manual iG5A user manual can be download through the homepage of LSIS Link http www I sis com support download Safety Information Read and follow all safety instructions in this manual precisely to avoid unsafe operating conditions property damage personal injury or death Safety symbols in this manual A Danger Indicates an imminently hazardous situation which if not avoided
30. s too low Determine if the input voltage is below the specified value The actual DC link voltage is different from the displayed value Need to inspect hardware Contact the retailer or the LSIS customer service center Blackout accidents occur Use speed search function An input phase loss has EE Check the input wiring The magnetic contactor connected to the power source Replace the magnetic contactor has a faulty connection A load greater than the power Capacity is connected to the system e g a welder direct motor connection etc Increase the power capacity LCD Display Type Description Electronic Displayed based on inverse time limit thermal Latch et Thermal characteristics to prevent motor overheating Cause Remedy The motor has overheated Reduce the load or operation frequency Tre menies load E reeter ten Replace the inverter with a model that has increased capacity the rated capacity The set value for electronic thermal protection ETH is too Set an appropriate electronic thermal level ETH low The inverter has been operated at low speed for an extended duration Replace the motor with a model that supplies extra power to the cooling fan 25 2 Troubleshooting MO DEB e V Type Description Normal open contact input When a P7 terminal set to Ext Latch trip A is ON Closed inverter displays the fault and turns External fault A contact
31. ue 9 will be displayed 3 Press the Y key to change the first place value to 3 of the target EE code 93 LSIs gt 1 Basic Checklist Step Instruction Keypad Display 4 Press the lt 4 key to move to the 10s place position aE Press the A or Y key to change the 0 to 9 of the target EE code 93 g Press the ENT key HO 43 Code H 93 will be displayed j Press the ENT key once again 7 The current parameter value for code H93 is set to 0 Do not Gg initialize Press the A key to change the value to 1 All Grp and then press l 8 the ENT key a The parameter value will flash Press the ENT key once again 9 Parameter initialization begins Parameter initialization is complete HO EE when code H93 reappears on the display Note Following parameter initialization all parameters are reset to factory default values Ensure that parameters are reconfigured before running the inverter again after an initialization 1 3 3 Read and Write Parameters Group Display Parameter Name Setting REO Default Unit Hor Pameereas tot o Hoe ramowe or 0 Read and Write Setting Details Function group 2 Code Description H91 Parameter Copies saved parameters from the inverter to the keypad Saved parameters on Read the keypad will be deleted and replaced with copied parameters Take caution
32. w any more Check the Motor Capacity amp Wiring KOIDE DIN OEN Type Description Parameter Latch Displayed when user setting parameters fails to be save error entered into memory Displayed when an error occurs in the control circuitry of Hardware fault ihe merter Communication Displayed when the inverter cannot communicate with error the keypad Displayed after Inverter resets keypad when keypad Keypad error Latch error occurs and this status is maintained for a certain e fas taon When NTC is not connected outputs are cut off Se Remedy Need to inspect hardware Contact the retailer or the LSIS customer service center Al 2 Troubleshooting 2 2 Troubleshooting Other Faults When a fault other than those identified as fault trios or warnings occurs refer to the following table for possible causes and remedies Parameters cannot be set Cause Remedy Stop the inverter to change to program mode and set The inverter is in operation driving mode the parameter Check the correct parameter access level and set the The parameter access Is incorrect p parameter Check the password disable the parameter lock by The password is incorrect setting UL Unlock in H95 and set the parameter Check the power input to resolve the low voltage and Low voltage is detected set the parameter The motor does not rotate Cause Remedy The frequency command source is set Check the frequency com
33. when Parameter write H92 is executed By doing this parameters in inverter are cleared and parameters in remote keypad are copied to inverter Available on LCD keypad only H92 Parameter Write 14 1 Basic Checklist 1 4 Fault Trip Monitoring The following example demonstrates how to monitor fault trip conditions in the Operation group using the keypad j Over Current Trip lt Instruction Keypad Display Refer to the example keypad display Ok An over current trip fault has occurred Press the ENT key and then the A key 2 The operation frequency at the time of the fault 80 00HZ is displayed Press the A key The output current at the time of the fault 5 0A is displayed Press the A key 4 The operation status at the time of the fault is displayed ACC on the display indicates that the fault occurred during acceleration Press the STOP RESET key 5 The inverter resets and the fault condition is cleared The frequency reference is displayed on the keypad Ms EZH LSIs 7 1 Basic Checklist The following example demonstrates how to monitor fault trip record REO Default Display Parameter Name Setting Hi tFauthistoryt po o ooo ooo Functi E wow fas frora O He Resetting fot fo Up to 5 faults information is stored a maximum of 5 fault trip records can be retrieved as shown in the Group f
34. wiring lt 100ft 80m Are optional cards connected correctly Is there any debris left inside the inverter Are any cables contacting adjacent terminals creating a potential short circuit risk Are the control terminal connections separated from the power Miscellaneous terminal connections Have the capacitors been replaced if they have been in use for gt 2 years Has a fuse been installed for the power source Are the connections to the motor separated from other connections 1 Basic Checklist 1 2 Basic Operations E About the keypad The keypad is composed of two main components the display and the operation input keys Refer to the following illustration to identify part names and functions 7 Segment Display Displays current operational status and parameter FWD Indicator information LED turns on Display steady during SET Indicator LED flashes during parameter configuration and when the ESC key operates as the multi function key forward operation REV Indicator LED turns on steady during Keys RUN Indicator reverse operation LED turns on steady during an operation and flashes during acceleration or deceleration The table below lists the way that the keypad displays characters letters and numbers uo 69 4 on un ac uu ey 5 wo gt se fen oAlen fen eal or 0 FPA ey re jm 9 gt 3 gt r ee KANANAHA ajue azl ele akalale z 10
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