Download ISI-501 Series Stand-alone Photovoltaic (PV) Inverter User Manual
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ISI-501 Series Stand-alone Photovoltaic (PV) Inverter User Manual Stand-alone Photovoltaic (PV) Inverter User Manual Table of Contents 1.Safety Guidelines ................................................................................... 1 2.Introduction ............................................................................................ 1 2.1 Features........................................................................................... 1 2.2 Main Specification ............................................................................ 2 3.User Interface Panel ............................................................................... 2 3.1 Front Panel ...................................................................................... 2 3.2 LED indicator on Front Panel ............................................................ 3 3.3 Rear Panel ....................................................................................... 3 4.Output Voltage and Frequency Settings .................................................. 4 4.1 Initial Factory State .......................................................................... 4 4.2 Procedure to Setting Output Voltage and Frequency ......................... 4 5.Operating ............................................................................................... 6 6.Protection .............................................................................................. 7 6.1 Input Protection ............................................................................... 7 6.2 Output Protection ............................................................................. 7 7.Installation & Wiring ................................................................................ 7 8.Troubleshooting ...................................................................................... 10 9.Warranty ................................................................................................ 10 Nov. 2013 Version 0 1.Safety Guidelines (Please read through this manual before assembling the Inverter) ‧Risk of elect rical sho ck and e nerg y hazard. All failures sho uld be examined by a qualified tec hnician. Ple ase do n ot remove the case of the inv erte r by you rself! ‧Plea se d o no t install the inverter in places with hig h moisture o r nea r wa ter. ‧Please do no t install the inverter in places with high am bie nt tempe rature, u nde r direct sunlight, or near fire source. ‧Ple a se o nly co n ne c t ba t ter i es w ith t he s am e b ra nd a nd mo d el n um b er i n o n e battery bank. Using batteries from different manufacturers or different capacities is st rictl y prohib ited! ‧Never allow a spark or fla me in the vic inity of the batteries. ‧Make sure the airflow from the fan is not obstructed at both sides (front and back) of the inverter. (Please allow at least 15cm of space) ‧Please do not stack any objects on the inverter as it may im pede heat dissipation. ‧Please t urn o ff th e inverter throug h th e po wer ON /OFF sw itch , before rem ovin g the battery. WARNING: Batteries will have aging problems after years of operation. It is suggeste d to exe cute re g ul ar battery maintena nce (e.g. every year). Once aged, the batteries should be changed by a p rofessional technician, or the failed batteries may cause fire or other hazards. Inverter Inverter Don't disasse mble Keep away from moistu re Inverter Keep away from fire or high temperatur e Don't stack on the inverter Inve rter K eep good ve ntilation 2.Introduction ‧ISI-5 01 is a t rue sine wav e DC/AC inv erte r eq uip ped with a so lar char ger (with MPPT) which is digitally controlled by an advanced microprocessor and is designed for high frequency operation. This high performance inverter can be paired with both battery and PV modules / panels. ‧ISI-501 can provide 500W pure sine wave output continuously, 550W for 1 minute, and sustain a peak lo ad of 1000W as long as 30 AC pow er c ycle s. ‧ISI-501 adopts a high frequency design which greatly reduces product weight and improves ma ximum e fficiency to 88%. ‧ISI-501 has a built-in solar charger with the MPPT function which effectively utilizes energy from the PV modu le. ‧IS I-5 01 p rog ress es t he c onc ept o f a m iniatur e ind epe nde nt p owe r sta tion . It is ideal for areas suitab le fo r PV module s an d where mains power is abse nt. 2.1 Features ‧500W rated output ‧Surg e power capability up to 1000W ‧True sine wave (THD<3%) 1 ‧AC o utput voltage tole rance : ±3% ‧H igh effic iency up to 88% ‧Built in M PPT solar ch arger, M PPT efficiency: 98% (Typ.) ‧Adjustable ou tput voltage and freq uency ‧LED indication fo r ope ration and battery capacity ‧Battery low a larm (with ele ctrically iso lated dry contact) ‧R em ote O n/Off function ‧C om pliance to FCC / CE regulations ‧3 year warranty 2.2 Ma in Specification O U T P U T I N P U T MODEL Po wer Ra ting Factory Setting Output Voltage 112 12 4 148 212 224 248 500W continuous; 550 W for 1 m in.; 100 0W for 3 0 AC power cycle s (450W ; 495W ; 900W f or 112, 2 12 mode ls) Protection Bat. Voltage AC sh ort, over load, an d over te mperatu re 10.5 ~ 15.0V 21.0 ~ 30.0V 42.0 ~ 60.0V 1 0.5 ~ 15.0V 21.0 ~ 30.0V 42.0 ~ 60.0V DC Current 50A 30 A 15A 5 0A 30A 15A Efficiency 85% 87 % 87% 8 6% 88% 88% 110Va c, 60Hz (Default ) 230Vac, 50Hz (D efault) 100 / 110 / 115 / 120Va c (Adjus table) 200 / 220 / 230 / 2 40Vac ( Adjustab le) Off Mode Current Draw Under 1.0mA w hile pow er switch OFF PROTECTION Ove r current, battery reve rse polarity (internal fuse ), battery low alarm, battery low shutdown P Open Circu it 35~50 V V Voltage M o d u l e 45~90V 90~160V 35~ 50V 35~90V 70~1 60V M PPT Voltage Range 25~50 V 35~90V 70~160V 25~ 50V 35~90V 70~1 60V Ma ximum Sho rt Circu it Current 11A 7A 4.5A 11A 7A 4.5A Charg e Voltag e 14.4V 28. 8V 57.6V 14.4V 28 .8V 57.6V Charg e Curre nt 30A 17A 8.5A 30A 17 V 8.5A AC Charger 3.Main S pec ification 3.1 Front Panel A AC Output Outlet: To satisfy global demands, there are many optional AC outlets to choose from. Receptacle type Country TYPE-A Standard USA TYPE-B Standard EUROPE TYPE-C Optional AUSTR ALIA Certificate TYPE-D Optional U.K TYPE-E Optional JAPAN TYPE-F Optional GFCI TYPE-U Optional UNIVERSAL Non 2 B LED Indicator (Status): Displays the operation status of the ISI-501. C LED Indicator (Battery): Displays remaining capacity of battery. D Function Setting: Output voltage and frequency can be set through this button. E P ow er O N/O FF S witch : Th e inve rt er will tu rn OFF if the s witc h is in the OFF position. F Ventila tion Slits: T he inverter requires good ve ntilation for proper o peration and for prolonging its lifetime. E A A C OUT PUT ON Stat us O FF B Battery F C Setting D Figure 3.1 F ront Panel(Type A) 3.2 LED Indicator On Fron t Pa nel Operation Status Indicator (Status LED) : Represents the current ISI-501 state. G reen R ed Orange LED Display Status N ormal Operation Remote Off Error *Note : When an error occurs, please refer to chapter 8 "Troubleshooting" of the use r manua l. Battery Ca pacity Indica tor (Battery LED):R epresents the re maining capacity of e xte rnal batterie s. LED Display Battery Capacity Orange 40 ~ 70% G reen >70% R ed <40% 3.3 Rear Pane A Battery Input(+ ),(-): Pay extra caution to battery polarity whe n wiring. B Fan Ve ntil atio n Op eni n g: The inv erte r req u ire s go od v e nt ilatio n fo r pr o pe r ope ration and for prolonging its lifetime. C Remote ON/OFF Control: While set at ON, the ISI-501 can be powered ON/OFF through remote control. Connector Status Inverter Status Open Rem ote ON Short Rem ote OFF 3 D Battery Low Alarm: This is an electrically isolated dry contact which can provide the user with an external control signal. User will be alarmed of a low battery when the two pins are open while the ISI-501 makes a "Beep" sound. Ba ttery Status Conne ctor Status Alarm Ba ttery Low Conne ctor Open "Beep" Sound Ba ttery Normal Conne ctor Short ----- E PV Input Terminal(+),(-): Pay extra caution to PV module polarity whe n wiring. F Grounding Terminal(FG). C D Rem ot e ON/ OFF Bat t er y l ow al arm B BAT TERY I NPUT A SOLAR IN PUT F Reverse Polarity Will Damage T he Unit. E Figure 3.2 Rear Panel 4.Output Voltage and Frequency Settings 4.1 Initial Factory State Initially the ISI-501 is set to output 110Vac at 60Hz or 230Vac at 50Hz. 4.2 Procedure to Setting Output Voltage and Frequency The user can adjust the output voltage and frequency through the function setting bu tton on the front p an el. A fter chan gin g th e se tting s, th e in verter w ill re boo t an d se t th e us e r in p ut v alu e s a s d e fau l t. I n the fut u re, e ve n if t h e b att e ry i s re m ove d, o r is the r e is no s o urc e o f pow er, the inve rter will kee p th ese m os t rec ent v alu es t hat t he u ser inpu t. Step 1: The inverter sho uld be turned off while resetting. Input batteries should be connected and the loads should be remov ed. Step 2: Use an insulated stick to pre ss do wn on th e se tting bu tton and then turn on the power sw itch; the Panel's orange colored LED shou ld flash. After pressing for 5 seconds, the inverter will send out a "Beep" sound. User can release the button a nd g o on with the setting procedure. Step 3: Check output voltage and frequency with table 4-1. If the output is desired, please continue to s tep 5; if not, please continue adjusting according to step 4 u ntil it is. 4 AC OUTPUT ON Status OFF Ba tter y Use an i nsu la ted pl ast ic st ick to press on t he "Set ti ng" bu tton Se tting Figure 4.1 Adjustin g output voltage and frequen cy Table 4-1 Voltage & Frequency Chart O/P Voltage F reque ncy 100 Vac (200 Vac) 110Vac (2 20Vac) 115Va c ( 230Va c) 120 Vac (240 Vac) Status 50Hz Battery Status 60Hz Battery ● ● ★ ● ● ★ ★ ★ ● ● ★ ● ● ★ ★ ★ ● Lig ht Red Green Red Green Red Gree n Red Gree n Red Yell ow Red Yell ow Re d Yellow Re d Yellow ★ Fla shing S te p 4: P re ss t he se ttin g bu tton aro und 1 secon d befor e let ting go. T he LED indicators (Table 4-1) will cha nge sta tus. Please adjus t accordingly. 110 Vac (220Vac) 5 0Hz 115Vac (2 30Vac) 50Hz 120Vac (240Vac) 5 0Hz 100Vac (200Vac) 5 0Hz 1 00Vac (200Vac) 60Hz 120 Vac (240Vac) 6 0Hz 115Vac (2 30Vac) 60Hz 110Vac (220Vac) 6 0Hz Figure 4 .2 O utput vo ltage & frequency changing sequence Ste p 5: When th e outpu t is a t us er's d es ired value, p ress a nd hold th e se tting button for 3~5 seconds until the inverter makes a "Beep" sound. The output setting is now complete; the inverter will now save the settings and restart. 5 5.Operation System On Battery Low Shutdown Auto Recovery (SW-ON) Protection t AC Output 14.4/28.8/57.6V Battery Voltage 13/26/52V 10.5/21/42V t ON Charger Status OFF t1 ON OFF OFF t2 t3 t4 t5 t6 t t7 Figure 5 .1 O peration Sequence t1 : Wh en us er turns on the I SI-501 , ba ttery vo ltag e wi ll be sens ed. If battery voltage is greater than 13/26/52V, it is adequately charged and the charger circuit will not activate to prevent overcharging. t2: While the ISI-501 ope rates, battery voltage will slow ly drop; w hen battery voltage is lower than 13/26/52V, battery low signal is sensed and the charger will automatically activate and charge accordingly. t3: If the power provided by the PV module is greater than load consumption, the battery will increase in voltage. When this battery voltage reaches 14.4/28.8/ 57.6, the charger circuit will shut off its charging current to the battery modules, to prevent the batteries from overcharging. t4: When battery voltage drops to 13 / 26 / 52V again,the charger will automatically restart charging action. t5: If the power provided by the PV module is less than load consumption, even if the charger is operational, the battery voltage will still drop. When battery voltage is below 10.5/21/42V, the ISI-501 will shut down output vo ltage to prevent the battery from over discharging thereby increasing its lifetime. t6: Under circumstances that the charger continuously charges the battery, the battery voltage will slowly increase. When battery voltage reaches 13/26/52V, th e s ystem will re sta rt after three minu te s and s tart prov idi ng AC volta ge output. t7: Same action as t3. The status of the inverter changes depending on the power provided by the PV module and its load consumption. 6 6.Protection 6.1 Input Protection (A)PV Module Reverse Polarity Protection: In the case where the user accidently reverses the polarity of th e PV mo dule, the ISI-501 interna l fus e will blow to protect o ther circuitr y. Please contact your neare st distribute r or send the goods back to Mean Well for repair. (B)Battery Reverse Polarity Protection: In the case where the user accidently reverses the pola rity of th e battery connection, the ISI-501 internal fuse will blow to protect other circuitry. Please contact your nearest distributer or send the goods back to Mean Well for repai r. (C)Battery Low Shutdown Protection: When the battery voltage is lower than rated shutdown point, the ISI-501 will shut down to guarantee the lifetim e of the battery. (D)Battery Overvo ltag e Protection: W hen the battery volta ge is too high, the inverter will shut down and an alarm will sound. Please resolve the error and restart the inverter to return to normal operation. WARNING: Before installation or after use, make sure the power ON/OFF switch at the front panel is in the OFF position to safely wir e or remove battery. Under normal working conditions, please choose suitable batteries that are within the input DC voltage range of the inverter (refer to spec ). If the input DC voltage is too low (e.g. using 12Vdc battery bank for 24Vdc models), the inverter cannot startup properly. If the input DC voltage is too high (e.g. using 48Vdc battery bank for 24Vdc models), the inverter will g et damaged . 6.2 Output Protection If the ISI-501 detects any of the following errors while operating, the status LED indicators will stay lit until the error is removed. (A)Over Temperature Protection(OTP) : When the internal temperature of th e ISI-501 reaches a threshold, over temperature protection will activate causing shut down. Wait at least 30 minutes before restarting to recover normal operation. (B) AC Output Short Circuit Protection: When the AC output of the ISI-501 is short circuited, it will go into protection. Restart to recover normal operation. (C) Over Load Protection: When the load is in the over load range of 500~550W (450~495W for 112/212 mode ls), the inverter can continue supplyi ng power for a short duration of 1 minute. If the load is no t removed, the sensing circuit will activate causing shut down. 7. Installation & Wiring (A)Wiring for batteries: Wire connection should be made as short as possible less tha n 1. 5m is highly reco mmended. Also m ake sure s uita ble wires are chosen based on safety requirement and current rating. Cross sections that are too small will result in lower efficiency, less output power, and the wires may also become 7 o ve rh eat ed a nd c au s e d a nge r. P lea se re fe r to ta bl e 7 .1 o r co nsu lt u s or o ur distributors if yo u have any questions. Table 7-1 Sug gestion for w ire selection Cross section of wire 2 lead(mm ) AWG Suggested Model 1.5 14 PV module input wire 2.5 12 48V b attery m odels 4 10 24V b attery m odels 6 8 12V b attery m odels (B)Suggested Ba ttery Type and Capacity Battery Typ e Battery Capacity Lead-acid 12V models 24V models 48V m odels 12V / 120Ah ~ 24V / 60Ah ~ 48V / 30Ah ~ 12V / 400Ah 24V / 200A h 48V / 100A h Note : If the desired battery type is not Lead-Acid based, please contact the battery manufacturer for an advised value. (C)Installation Requirements: ‧The unit should be mounted on a flat surface or holding rack with suitable strength. In order to ensure the lifespan of the unit, please refrain from operating the unit in dusty or mo ist e nvironments. This is a power unit with built-in DC fan. P lease m ake sure the ve ntilation opening s are no t blo cke d an d refrain from c ontinuous opera tion with heavy l oad in high am bient environment becaus e this may prevent inverter from operating properly and its life span may be affected. We highly recommend tha t there should be no objects impeding airflow within 15cm of the ventilation openings. >15cm Air >15cm Inverter Air Figu re 7.1: E xam ple of In stallation 8 (D)Suggested Mounting The case has four reserved holes for fixing, the user can utilize these to mount the ISI-501 as shown below. It is advi sed to mount the ISI-501 horizontal. (E)Example of System Setup Leads should be as short as possible Large r than 15cm AC O/P Solar panel ISI-501 Inverter Larger than 15cm Battery DC I/P + AC Load - + - S olar I/P FG + - Wall or system FG Leads should be less than 1.5m Based on th e actual length o f wiring, choose suitabl e cross-sect ion of the leads (F)Deratin g 100 100 80 80 60 60 50 40 40 20 20 -20 0 10 20 30 40 50 60 10.5VDC 21VDC 42VDC Ambi ent Temperature (℃) Ta 11.5VDC 23VDC 46VDC 15VDC 30VDC 60VDC (HORIZONTAL) Bat tery In put Vo ltage (V) Figure 7.2 Output Derating Curve Figure 7.3 Input Derating Curve 9 (G) Notes on O utput Loads: ISI-501 Series can power most equipment requiring an AC source of 500W, but for certain type of load, the unit may not work properly. (1 )Sin c e indu ctive loa d s o r mo tor based e quip ments n eed s a la rge s ta rt up current (6~10 times of its rated current), please make sure this startup current is less than the maximum current capability o f the inverter. (2 )Wh en the loads are cap acitive o r rectified equip ments (such as switching power supply), we suggest operating these equipment at no load or light load during power ON. Increase the load slowly only after the IS I-501 has started up to ensure proper operation. 8. Troubleshooting ISI-50 1 is a complex product which should b e serviced by pro fessional technician. Improper usage or modification may damage the unit or result in shock hazard. If you are not able to clear the failure condition according to the following instructions, please contact us or your closest d istributo r for repair se rvice. Failure S tatu e Possible Reason s Recommended Solutions Abnormal Input Check the DC input sources (PV/ battery) to make sure the voltage is within the required range M a k e s u re t ha t t he v e n ti la t io n i s n o t Over Temperature Protection N o A C Ou tpu t Voltage Ma k e su re t he o utp ut lo ad do e s n o t Overload Protection Battery D isch arging Period to short blocked and the ambient temperature is not too high. Please derate load usage or lower the ambient temperature ex cee d th e ra t ed val u e or t he peak startup current is not too high, typically found in inductive or capacitive loads Short Circuit Protection Make sure the output is not overloaded or short circuited Battery Aged or Broken Replace the batteries Battery Capacity is too Sma ll Reconfirm battery specification and enlarge the battery capacity as suggested 9. Warranty Three years of warranty is provided under normal operating conditions. Please do not change components or modify the unit by yourself or attempt to repair the unit by yourself because Mean Well reserves the right to void the w arranty. 10