TN-1500-112F Manual
Contents
1. MEAN WELL TN TS 1500 Inverter Instruction Manual MW MEAN WELL TN TS 1500 Inverter Instruction Manual Index 1 Safety Guidelines 1 2 Introductiol areas 1 201 T TULIP CE 2 2 2 Main Specification anna 2 2 3 System Block Diagram 3 User Interface nen ehe ee ende 3 3 1 Front Panel 3 3 2 LED Indicator on Front Panel 4 3 3 Functional Indication and Alarm 4 3 4 Rear Panel ue nem Seeded 5 4 Explanation of Operating Logic 5 4 1 Explanation of UPS Mode Control Logic 6 4 2 Explanation of Energy Saving Mode Control Logic 8 5 Initial Setup of 5 1500 9 5 1 Initial State oo ea 9 5 2 Initial Set Point for Transition Voltages 9 5 3 Procedure of Setting Operating Mode Output Voltage Frequency and Saving Mode 10 5 4 Remote Monitoring Software 12 PROTEC EON ierit teeta2. We recommend that there should be no barriers within 15cm of the ventilating holes gt 15cm Air lt Inverter gt 15cm 3 Air Figure 7 1 Example of Installation D Example of System Diagram 7 As short as possible Larger AC O P TN TS 1500 Solar Panel abu Inverter y 15cm Battery Solar I P Y ACI P DCI P Chassis IL Should less than 1 5m Based on the actual length of wiring and choose suitable cross section of the leads Where the DC I P and chassis fix manner as following than 15cm LOAD Wall or system FG Company Name Mean Well Enterprises Co Ltd Model Name 1GG1HS 191 Rating 150A Torque 106 2 Ib in max Suitable Wire Copper wire temp rating 75C Intended for termination onto a Listed ring tongue connector To Be Sold Only With Installation Instructions Amounting screw thatis first inserted through the tang and is threaded into the connector to secure the connector to the tang shall be torqued to 32 in Ibs minimum 9 Mounting Screws Plated Steel Two provided size M4 7 Cat No 1GG1HS 212 Wire Range 10 4AWG Str Cu Soldered Wires Torque 17 7 26 5inIb gt Chassis E Derating 10
3. input models TN TS 1500 can t be started up properly If the input DC voltage is too high ex using 48Vdc battery bank for 24Vdc input models TN TS 1500 will be damaged D Solar Charger Over Current Protection The maximum charging current of the built in solar charger is 30A If the charging current is too high the internal fuse will blow and the inverter should be send back to MEAN WELL for repair 6 2 Output Protection A Bypass Mode Uses No Fuse Breaker as automatic over current protection When over current occurs the button of the circuit breaker on the front panel will pop up and the inverter will shut down At this time users should remove the loads restart the inverter and press down on the button of the circuit breaker and the AC output can now be provided normally B Inverter Mode Under the Inverter Mode if any abnormal situation occurs the front panel will send out failure messages through the Load Meter Please refer to Table 6 1 1 Over Temperature Protection When the internal temperature is higher than the limit value the Over Temperature Protection will be activated The unit will automatically turn off and should be restarted again 2 AC Output Abnormal Protection When the AC output voltage of the inverter is too high or too low the unit will turn off and should be restarted again 3 AC Output Short Circuit Protection When a short circuit situation occurs at the output side of the
4. outlet To satisfy application demand of different geographic areas all over the world there are many optionalAC outlets to choose from No Fuse Breaker Reset Under Bypass Mode when the AC output is shorted or the load current exceeds the rated current of the No Fuse Breaker the No Fuse Breaker will open and that stops bypassing energy from the utility getting to prevent possible danger When the abnormal operating condition is removed user can press down onthe Reset button to resume operation D Ventilation holes The inverter requires suitable ventilation to work properly Please make sure there is good ventilation and the lifespan of the inverter can preserved E Function Setting Operating Mode Output voltage frequency and saving mode can be setthrough this button LED Indicating Panel Operating status load condition and all types of warnings will be displayed on this panel G Communication Port For remote monitoring purpose the unit can be connected to a PC through this communication port by using the optional cable and monitoring software AC OUTPUTI NAT SOLARCHARGE EE 188 oy TEE OFF T N namen Setting E P 100 INVERTER E Oeo pe a Ree Dur o O BatLow zei ACIN BYPASS 3 d saving 9 5 Figure 3 1 Front Panel TN 1500 3 2 LED Indic
5. the solar charger will be turned ON instead If the energy provided by the charger is larger than what is consumed by the load voltage of battery bank will increase gradually until 28 5V is reached then the CPU will be shut off the charger to prevent overcharging At this point outputloadis still supplied by utility Since the chargers are in the OFF mode the battery voltage will gradually decrease to the range of 26 5 28 5V floating voltage level If utility were to fail at this moment the CPU will automatically switch 10ms to the inverter mode insuring uninterrupted power Once utility recovers the CPU will switch back to the bypass mode When battery voltage drops to below 26 5V the battery charger will be activated to charge the battery bank refer to t3 for detailed description Same as t4 Due to lack of utility TN 1500 will switch to the inverter mode AC charging function will be turned off Since AC output relies purely on battery power the battery bank will be depleted rather quickly t10 As the battery discharges to below 26 5V and utility remains unavailable Only the solar charger is turned ON The battery bank could be depleted rather quickly t11 Same as Energy Saving mode t12 When solar charger is providing current of larger than 3A the voltage level of the battery bank will rise slowly Once the battery voltage reaches inverter mode reactivation level the inverter will be revived 4 2 Exp
6. will automatically store all the settings and then start to operate 5 4 Remote Monitoring Software A Users can also make Operating Mode voltage frequency saving mode and transition voltage adjustments by using this software Software update can be downloaded from the MW website Please contact us or our distributor if you have any questions B DB9 USB conversion cable should not be used because it will not be compatible with the monitoring software 6 Protection 6 1 Input Protection A Battery Polarity Protection If the battery input is connected in reverse polarity the internal fuse will blow and the inverter should be send back to MEAN WELL for repair B Battery Under Voltage Protection When the battery voltage is lower than the preset value the inverter will automatically terminate the output and Battery Low signal on the front panel will light up Please refer to Table 6 1 for more detail about the failure signals displayed through the Load Meter C Battery Over Voltage Protection When the battery voltage is too high inverter will automatically terminate the output and the built in buzzer will activate to inform the users Please refer to Table 6 1 for more detail about the failure signals displayed through the Load Meter A WARNING Please choose suitable batteries that is within the rated input DC voltage of TN TS 1500 refer to the SPEC If the input DC voltage is too low ex using 12Vdc battery bank for 24Vdc
7. 0 7 NT c 7 80r 80 T 60r ii 60r ai a a amp 40 4 S 40 4 EI 20 4 20 0 10 20 30 40 50 60 70 21VDC 23vDC 30VDC HORIZONTAL Ambient Temperature Battery Input Voltage V 24V Model Figure 7 2 Output Derating Curve Figure 7 3 Input Derating Curve F N Notes on Output Loads TN TS 1500 Series can power most of equipments that need an AC source of 1500W But for certain specifictype ofload the unit may not work properly 1 Since inductive loads or motor based equipments need a large start up current 6 10 times of its rated current please make sure this start up current is less than the maximum current capability of the inverter 2 When the output are capacitive or rectified equipments such as switching power supply we suggest operating these equipment at no load or light load condition Increase the loads slightly only after the TN TS 1500 has started up to ensure proper operation 8 Failure Correction Notes TN TS 1500 should serviced by a professional technician Improper usage or modification may damage the unit or result in shock hazard If you are not able to clear the failure condition please contact Mean WELL or any of our distributors for repair service Status Possible Reasons Ways to Eliminate Check the AC or DC input sources Abnormal input Make sure the voltage is within the required range No input battery AC main Make sure the wiring and polarity or solar energy i
8. 220 230 240V T Frequency 60 0 1Hz 50 0 1Hz WAVEFORM True sine wave THD lt 3 0 PROTECTION AC short Overload Over Temperature BAT VOLTAGE 10 5 15 0V 21 0 30 0V 42 0 60 0V 10 5 15 0V 21 0 30 0V 42 0 60 0V DCCURRENT 150A 75A 37 5A 150A 75A 37 5A N EFFICIENCY 87 89 89 88 90 91 OFF MODE T CURRENT Under 1 0mA at power switch OFF DRAW PROTECTION Over current gt battery polarity reverse by fuse battery low shutdown gt battery low alarm CHARGE VOLTAGE 14 5V 29 0V 58 0V 14 5V 29 0V 58 0V H JAC CHARGE 5 5 0 5 2 7A40 4A 1 35 0 2 5 5A30 5A 2 7A40 4A 1 35A40 2A a SOLAR OPEN G CIRCUIT 25Vmax 45Vmax 75Vmax 25Vmax 45Vmax 75Vmax E VOLTAGE R SOLAR CHARGE 30A max CURRENT 2 3 System Block Diagram TN 1500 Inverter EMI T filter Input UI i CPU LED Controller Display AC charger Circuit Fuse Solar charger gt Breaker 41 gt 9v 230v n d 200V oc 400Voc N 50Hz 60Hz ly f Battery FYS Polarity gt DC AC U AC 12V 24V 48V 1 9 detect Converter Te Inverter Output SolarPanel T Figure 2 1 System Block Diagram 3 User interface 3 1 Front Panel A POWER on off switch The inverter will turn OFF if the switch is in the OFF position AC output
9. D Frame ground FG Solar Input 30 max Fig 3 2 Rear Panel TN 1500 4 Explanation of Operating Logic TN 1500 CPU controlled inverter is designed to achieve the goal of energy saving and possesses both UPS and Energy saving modes These 2 modes are user adjustable The unit will be factory set in the UPS mode Depending on weather and utility conditions users can manually adjust or use the monitoring software to switch to the Energy saving mode The main difference between UPS and Energy saving mode is the amount of energy conserved Underthe UPS mode the unit will remain in the Bypass mode as long as utility is available Thus less energy is conserved refer to Fig 4 1 for UPS mode control logic Under the Energy saving mode the priority of input source chosen is solar panel AC main battery If available the CPU will select external solar panels as its first priority in order to conserve energy In case of insufficient solar power and utility failure battery power will be drawn as the last resort When the capacity of batteries is around 10 2096 the CPU will remind end users by continuously sending out warning siren until the system shuts down 4 1 Explanation of UPS Mode Control Logic ON on Utility Power OFF OFF Power On Re power on Ol ON By pass mode OFF OFF t ON on ON I
10. and less than 1 5 meter is highly recommended Make sure that suitable wires are chosen based on Safety requirement and rating of current Too small cross section will result in lower efficiency less output power and the wires may also become overheated and cause danger Please refer to Table 7 1 and consult our local distributor if you have any questions Table 7 1 Suggestion for Wire Selection Rated Current of Cross section of Equipment Amp Lead mm AWG Note 10A 13A__ ee EON Choosing suitable 13A 16A 1 5 14 wires based on the 16A 25A 2 5 12 rating of solar panels 25A 32A 4 10 and distance from 32A 40A 6 8 the inverter 40A 63A 10 6 Models using 48V 63A 80A 16 4 batteries 80A 100A 25 2 Models using 24V 100A 125A 35 1 batteries gt 125A 50 0 Models using 12V batteries B Suggested Battery Type and Capacity TN TS 1500 Battery Type Lead acid 112 212 124 224 148 248 12V 120Ah 24V 60Ah 48V 30Ah 12V 400Ah 24V 200Ah 48V 100Ah Input Current 5A 25A from Solar Panel Battery Capacity C Requirement of Installation The unit should be mounted on a flat surface or holding rack with suitable strength In order to ensure the lifespan of the unit you should refrain from operating the unit in environment of high dust or moisture This is a power supply with built in DC fan Please make sure the ventilation is not blocked
11. anels exist and then adjust its internal setting Users can also set up the operating mode output voltage frequency and saving mode by themselves based on their special needs geographic area and environmental conditions With pure sine wave output TN TS 1500 can provide 1500W continuously 1750W for 3 minutes or 20 40A of peak current for all kinds of load such as inductive capacitive or resistive General applications include PC ITE vehicles yachts home appliances motors power tools industrial control equipments AV system and etc 2 1 Features Selectable UPS or Energy saving mode Solar charging current 30A max True sine wave output THD lt 3 Fasttransfertime 10ms Typ 1500W rated output High efficiency up to 90 Complete LED indication for operating status e Battery low alarm and indicator Surge power capability up to 3000W Output voltage frequency selectable Fully digital controlled Compliance to UL458 FCC E13 CE Can be used for most of electronic products with AC input year global warranty 2 2 Main Specification MODEL 112 124 148 212 224 248 Rated 1500W max continuously 1750W max for 180 seconds 1875W max for 10 seconds power 3000W for 30 cycle Surge Current 40A 500ms typ 20A 500ms typ 110V 60Hz 230V 50Hz p setting U Output voltage 100 110 115 120V 200
12. ange state by pressing the setting button for 1 second and then release refer to Figure 5 2 Please select the combination of output voltage and frequency you need 115Vac 230Vac 977 20 we 100Vac 100Vac 200Vac 90Hz 200Vac 60Hz 120 110Vac 60Hz 115Vac 60Hz 240Vac MEE 230Vac 8 0Hz 220Vac Figure 5 2 State Circulation Diagram of Output Voltage and Frequency STEP 8 After selecting the output voltage and frequency press the setting button for 3 5 seconds and the inverter will send out a Beep sound The button can be released and it will go into the setting section for Saving Mode STEP 9 Please refer to Table 5 3 and check whether the Saving Mode is set as required If yes please skip to STEP 11 If change is required please follow STEP 10 11 Table 5 3 LED Indication for Saving Mode ON OFF On a Mode Bat Low Saving Light On k Dark Saving Mode Flashing OFF Bat Low Saving STEP 10 The LEDs will change state by pressing the setting button for 1 second and then release You can activate or cancel the Saving Mode function by this adjustment STEP 11 After activating or canceling the Saving Mode press the setting button for around 5 seconds and the inverter will send out a Beep sound The button can be released and all the settings are finished The inverter
13. ator on Front Panel Battery Capacity Indicator represents the remaining capacity of external batteries LED Display LED 1 ON LED 1 20N LED1 30N LED1 40ON PL 0 25 26 50 51 75 76 100 Load Condition Indicator represents the magnitude of output loads LED Display LED 1 ON LED 1 20N LED 1 30N LED1 40N Battery 5 Capacity 0 30 30 50 50 75 75 100 3 3 Function Indication and Alarm On The inverter started up and outputis normal Bat Low Voltage of external batteries is too low The inverter will send out sound to warn the users Saving Theinverter is operating under the Saving Mode and there s no AC output CHARGE The built in AC charger is charging external batteries SOLAR CHARGE The external solar panels are providing energy to the external batteries through the built in solar charger AC IN The status of utility is normal BYPASS The unit is working under Bypass Mode The AC electricity consumed by the loads is provided by the utility instead of the inverter INVERTER The unit is working under Inverter Mode The AC electricity consumed by the loads is converted from the batteries BATTERY Display the remaining capacity of external batteries LOAD Display the output load status 3 4 Rear Panel A Battery input Utility inlet IEC320 O Solar panel input terminal
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15. inverter or the load increase greatly in a short period of time the unit will turn off and should be restarted again 4 Battery Voltage Abnormal Protection When the battery voltage is too high or too low this protection will be activated The inverter will auto recover once the battery voltage go back to a safe level and users do not need to restart it 5 Output Overload Protection When output is overloaded between 1500W 1750W the inverter can continuously provide power for minutes After that if the overload condition is not removed the overload protection will be activated When the load is higher than 1875W the overload protection will activate instantly For these overload protections once activated you should reset the unit Table 6 1 Failure Messages On Front Panel Failure LED Failure LED Message Indicator Message Indicator Output LOAD ro Abnormal Overload AC Output 1500W 1750W Voltage Output es pium Overload it 1750W 1875W Output Te Abnormal oo Overload Battery gt 1875W Voltage Over CI Temperature 7 Installation amp Wiring A Wiring for Batteries Wire connections should be as short as possible
16. lanation of Energy Saving Mode Control Logic Solar charger ON state or b l OFF gt t A ON Utility Power OFF Power On ON Bypass mode OFF OFF t ON ON ON Inverter mode OFF OFF OFF 28 5V 28 5V 28 V 28 5V Battery voltage AC charger state OFF OFF t t2 t3 t4 tu t2 t3 t4 t5 t6 t7 t8 Figure 4 2 Diagram of Energy Saving Mode Control Logic When the TN 1500 is turned on CPU will execute the Bypass Mode automatically connecting the AC main to the load In the mean time it will activate both the AC charger and solar charger to simultaneously charge the batteries When the batteries are full battery voltage around 28 5V both the AC and solar charger will be turned off to prevent overcharging and reducing the battery lifetime In the meantime the system will switch to the Inverter Mode and the AC electricity provided to the loads will be coming from the batteries When the batteries are depleted to around 75 of their capacity battery voltage around 26 5V CPU will restart the solar charger but not the AC charger to achieve the purpose of energy saving If the energy provided by the solar panels is largerthan the load requirement voltage of battery bank will increase gradually until reaching 90 capacity battery voltage around 28 5V and then the solar charger will be shut off to prevent the batteries fr
17. nverter Mode OFF OFF OFF t 28 5V 28 5V 28 5V 28 5V 25 N26 5V 26 5V 26 5V 22 5V Alarm Battery voltage 216 hut down t 29 0V 1 Solar charger JON ON Sx ON ON ON AC charger state 95 OFF OFF t 1 i 2 t3 t4 6 6 71819 t10 t t12 Figure 4 1 Diagram of UPS Mode Control Logic t1 To ensure the battery is at full capacity when the TN 1500 is turned on the CPU will execute the Bypass Mode automatically connecting the AC main to the load In the meantime it will activate both the AC charger and solar charger to simultaneously charge the batteries t2 When the batteries are full battery voltage around 28 5V both the AC and solar charger will be turned off by the CPU to prevent overcharging and reducing the battery lifetime In the meantime the system will remain in the Bypass Mode and AC electricity provided to the loads is coming from public utility t3 t4 t5 t6 U t8 t9 At this time period TN 1500 is still in the Bypass mode The battery voltage level will decrease gradually due to standby power dissipation When the batteries are consumed to around 75 of their capacity battery voltage around 26 5V the CPU will restart the charger The CPU will use charging current of 3A as a guide point When the provided charging current is under 3A the AC charger will be turned ON e g Night time or cloudy day As for charging current of over 3A
18. nx diiit RS enc NIMM M 12 6 1 Input Protection 1 eese Rebeca en 12 6 2 Output Protection a a a aa a aaa a AMARAS 13 7 installation amp Wining el nee 14 8 Failure Correction Notes eicere erii 17 CM EL chs Sr se 17 Feb 2013 Version 13 1 Safety Guidelines Please read through this manual before assembling TN TS 1500 Risk of electrical shock and energy hazard All failures should be examined by the qualified technician Please do not remove the case of the inverter by yourself After connecting the AC input of the inverter to the utility the AC outlet of the inverter will have AC output even if the power switch on the front panel isin the OFF position Itis highly recommended to mount the unit horizontally Please do not install the inverter in places with high moisture or near water Please do not install the inverter in places with high ambient temperature or under direct sunlight Please only connect batteries with the same brand and model number in one battery bank Using batteries from different manufacturers or different capacity is strictly prohibited Never allow a spark or flame in the vicinity of the batteries because they may generate explosive gases during normal operation Make sure the air flow from the fan is not obstructed at both sides front and back of the inverter Please allow at least 15cm of space Plea
19. ode is the one you need If yes please skip to STEP 5 If change is required please follow STEP 4 11 Table 5 1 Operating Mode e Energy Saving ESPEG re Moos Saving Light On Dark UPS Mode Bat Low Saving STEP 4 The LEDs will change state by pressing the setting button for 1 second and then release Operating Mode can be adjusted as required STEP 5 After selecting the Operating Mode press the setting button for 3 5 seconds and the inverter will send out a Beep sound The button can be released and you can go on to the setting section of Voltage frequency STEP 6 Please refer to Table 5 2 and check whether the combination of output voltage and frequency is the one you need If yes please skip to STEP 8 If changeis required please follow STEP 7 11 OUTPUT Use an insulated stick to H press this setting button mpm Figure 5 1 Adjustment of Output Mode Output Voltage Frequency and Saving Mode Table 5 2 LED Indication of Output Voltage Frequency Combination Voltage 100Vac 110Vac 115Vac 120Vac 200Vac 220Vac 230Vac 240Vac On Light 50Hz Bat Low Saving e SA Dat k k k k Flashing 60Hz Bat Low e e Saving e STEP 7 The LEDs will ch
20. om overcharging 5 t6 U t8 When the capacity of batteries go down to about 7596 battery voltage around 26 5V solar charger will restart and begin charging If the energy provided by the solar panels is lower than consumed by the loads voltage of battery bank will decrease gradually to 2096 of its capacity battery voltage around 22V the built in buzzer will be activated and inform the users to take proper action If the power consumption of the loads does not decrease and the AC main is normal CPU will detect this and the unit will be transferred to Bypass Mode The utility will provide energy to the loads and charge the battery bank at the same time in order to prevent the unit from shutting off If the solar current is higher than 3A the CPU will not activate the AC charger and just let the Solar Charger charge the batteries to achieve the goal of energy saving Whenlacking AC main the CPU will shut down the whole systemifthe capacity of external battery bank is less than 1096 battery voltage around 21V in order to prevent over discharging and reducing its lifetime After shut down the CPU will provide LED indication tothe user know why the inverter has shut off Initial Setup of TN TS 1500 Operating Mode Output Voltage Frequency and Saving Mode 5 1 Initial State The initial state of TN TS 1500 is 120Vac 60Hz or 230 Vac 50Hz and both the UPS mode and Saving Mode is activated If the
21. s correct Make sure that the ventilation is not blocked or whether the ambient temperature is too high Please Over temperature NoAC output Een derate output usage or reduce the voltage ambient temperature Make sure the output load does not exceed the rated value or the Overload protection instantaneous start up current is not too high for inductive or capacitive loads Make sure the output is not Short circuit protection overloaded or short circuit Batteries are aging or broken Replace the batteries nam arging fetis apii Reconfirm the specification and enlarge on is the battery capacity as suggested i too short Malfunction of the charger Repair required Please send it back no charging voltage to us or any of our distributors Fan do s Clog with foreign objects REMOVE objects not spin Malfunction of the fan Repair required Please send it back to us or any of our distributors 9 Warranty Three years of global warranty is provided for TN TS 1500 under normal operating conditions Please do not change components or modify the unit by yourself or MEAN WELL may reserve the right not to provide the complete warranty BH 1 3 Bg 3 A OBR MEAN WELL ENTERPRISES CO LTD 248 dt E R A B 28 5 No 28 Wuquan 3rd Rd Wugu Dist New Taipei City 248 Taiwan Tel 886 2 2299 6100 Fax 886 2 2299 6200 http www meanwell
22. se do not stack any object on the inverter AN WARNING Batteries will have aging problem after years of operation It is suggested to execute regular battery maintenance e g every year Once aged the batteries should be changed by professional technician or the failed batteries may cause fire or other hazards Inverter er Inverter Don t Away from Away fromfireor Don tstack on Keep good disassemble moisture high temperature the inverter ventilation 2 Introduction e Fully digital controlled by an advanced CPU TN 1500 is a true sine wave inverter equipped with an AC charger and solar charger It can also operate under UPS and Energy saving modes Descriptions which are high lighted represents functions only for the TN 1500 series TS 1500 series only possess the inverter function It uses batteries as the input source and converts the energy into AC output TN 1500 is capable of drawing energy from solar panel thus provide uninterrupted power UPS mode Besides providing uninterrupted power it also has user adjustable energy saving mode The main purposes of energy reduction and building an independent sub power station are realized We can say that TN 1500 series is a multi functional and designed to be environmentally friendly TN 1500 series will automatically detect the input sources whether AC main or solar p
23. users need to revise it for certain application it can be done through the setting button on the front panel Please refer to section 5 3 The unit will start up automatically after the setting procedure is finished and the new settings will be executed These new settings will be kept even if AC battery and solar is disconnected or occurrence of fault conditions leading to failure of output voltage thus requiring powering the inverter OFF and ON 5 2 Initial Set Pointfor Transition Voltages TN TS 1500 Factory Setting 112 212 124 224 148 248 AC Charger Transition Voltage AC Charger Start Up Voltage 11V 22V 44V Solar Charger Start Up Voltage Solar Charger Shut Down Voltage Inverter Shut Down 10 5V 21V 42V 14 3V 28 5V 57V 13 3V 26 5V 53V 14 3V 28 5V 57V 5 3 Procedure of Setting Operating Mode Output Voltage Frequency and Saving Mode Note TS 1500 does not have Step 3 5 STEP 1 The inverter should be turned off while resetting Input batteries should be connected AC main can either be connected or disconnected and the loads should be removed STEP 2 Use aninsulated stick to press the setting button and then turn onthe power switch After pressing for 5 seconds the inverter will send out a sound Users can release the button and go into the setting procedure STEP 3 Please refer to Table 5 1 and check the LED status to see if the Operating M
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