MPP Solar 2424LV-HS User Manual Download

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Table 3: Charging Mode Specifications

Utility Charging Mode

INVERTER MODEL

3KVA

Charging Current (UPS)

@ Nominal Input Voltage

2/10A/20/30A/40/50/60A

Bulk
Charging
Voltage

Flooded Battery

29.2

AGM / Gel
Battery

28.2

Floating Charging Voltage

27Vdc

Charging Algorithm

3-Step

Charging Curve

Time

Battery Voltage, per cell

Charging Current, %

100%

50%

Bulk

(Constant Current)

Absorption

(Constant Voltage)

Maintenance

(Floating)

Current

Voltage

T1 = 10* T0, minimum 10mins, maximum 8hrs

2.43Vdc (2.35Vdc)

2.25Vdc

Solar Charging Mode

INVERTER MODEL

3KVA with PWM

3KVA with MPPT

Rated Power

1250W

2000W

Max. efficiency

98.5%

98%

Max. PV Array Open Voltage

80Vdc

145Vdc

Operating Voltage Range

30~

40Vdc

N/A

PV Array MPPT Voltage
Range

N/A

30~

80Vdc

Min. battery voltage for PV
charge

17Vdc

Standby Power Consumption

Battery Voltage Accuracy

+/-0.3%

PV Voltage Accuracy

+/-2V

Charging Algorithm

3-Step

Joint Utility and Solar Charging
INVERTER MODEL

3KVA with PWM

3KVA with MPPT

Max. Charging Current

110A

140A

Default Charging Current

60Amp

Summary of Contents for 2424LV-HS

Page 1: ...User Manual ...

Page 2: ...ly 8 Communication Connection 9 Dry Contact Signal 9 OPERATION 10 Power ON OFF 10 Operation and Display Panel 10 LCD Display Icons 11 LCD Setting 13 Display Setting 18 Operating Mode Description 21 Fault Reference Code 22 Warning Indicator 23 SPECIFICATIONS 24 Table 1 Line Mode Specifications 24 Table 2 Inverter Mode Specifications 25 Table 3 Charging Mode Specifications 26 Table 4 General Specifi...

Page 3: ...ng Turning off the unit will not reduce this risk 5 CAUTION Only qualified personnel can install this device with battery 6 NEVER charge a frozen battery 7 For optimum operation of this inverter charger please follow required spec to select appropriate cable size It s very important to correctly operate this inverter charger 8 Be very cautious when working with metal tools on or around the batteri...

Page 4: ...nt to suit different applications via LCD setting Configurable priority of AC Solar Charger via LCD setting Compatible to mains voltage or generator power Automatic restart while AC is recovering Overload Over temperature short circuit protection Smart battery charger design to optimize battery performance Cold start function Basic System Architecture The following illustration shows basic applica...

Page 5: ...ator 5 Function buttons 6 Power on off switch 7 AC input 8 AC output 9 PV input 10 Battery input 11 Circuit breaker 12 RS232 communication port 13 Parallel communication port only for parallel model 14 Current sharing port only for parallel model 15 Dry contact 16 USB communication port ...

Page 6: ... Do not mount the inverter on any flammable construction materials Mount this inverter on a solid surface Install this inverter at eye level in order to read the LCD display at all times The ambient temperature should be between 0 C and 55 C to ensure optimal operation The inverter should be adhered to the wall vertically Be sure to keep other objects away and leave the space in a minimum as shown...

Page 7: ...rminal recommended below Recommended battery cables and size of terminal Model Typical Amperage Battery Capacity Wire Size Torque Value 3KVA 24V 100A 100AH 200AH 1 4AWG 2 3 Nm Please follow the steps below to implement the battery connection 1 Remove insulation sleeve 18 mm for positive and negative conductors 2 Suggest to put bootlace ferrules on the end of positive and negative wires with a prop...

Page 8: ...erter can be securely disconnected during maintenance and fully protected from over current of AC input The recommended spec of AC breaker is 40A for 3KVA CAUTION There are two terminal blocks with IN and OUT markings Please do NOT mis connect input and output connectors WARNING All wiring must be performed by the qualified personnel WARNING It s very important for system safety and efficient oper...

Page 9: ...n to use appropriate cable for PV module connection To reduce risk of injury please use the recommended cable size as below CAUTION Important Be sure to connect AC wires with correct polarity If L and N wires are connected reversely it may cause utility short circuited when these inverters are worked in parallel operation CAUTION Appliances such as air conditioner are required at least 2 3 minutes...

Page 10: ... Remove insulation sleeve 10 mm from positive and negative conductors 2 Check the correct polarity of connected cable from PV modules and PV input connectors Then connect positive pole of connection cable to positive pole of PV input connector Connect negative pole of connection cable to negative pole of PV input connector 3 Make sure the wires are securely connected Final Assembly After connectin...

Page 11: ...device when battery voltage reaches warning level Unit Status Condition Dry contact port NC C NO C Power Off Unit is off and no output is powered Close Open Power On Output is powered from Utility Close Open Output is powered from Battery or Solar Program 01 set as Utility Battery voltage Low DC warning voltage Open Close Battery voltage Setting value in Program 13 or battery charging reaches floa...

Page 12: ...ting the operating status and input output power information LED Indicator LED Indicator Messages Green Solid On Output is powered by utility in Line mode Flashing Output is powered by battery or PV in battery mode Green Solid On Battery is fully charged Flashing Battery is charging Red Solid On Fault occurs in the inverter Flashing Warning occurs in the inverter Function Keys Function Key Descrip...

Page 13: ...ad percent load in VA load in Watt and discharging current Battery Information Indicates battery level by 0 24 25 49 50 74 and 75 100 in battery mode and charging status in line mode In AC mode it will present battery charging status Status Battery voltage LCD Display Constant Current mode Constant Voltage mode 2V cell 4 bars will flash in turns 2 2 083V cell Bottom bar will be on and the other th...

Page 14: ... 1 867V cell 1 95V cell 1 95 2 033V cell 2 033 Load Information Indicates overload Indicates the load level by 0 24 25 50 50 74 and 75 100 0 25 25 50 50 75 75 100 Mode Operation Information Indicates unit connects to the mains Indicates unit connects to the PV panel Indicates load is supplied by utility power Indicates the utility charger circuit is working Indicates the DC AC inverter circuit is ...

Page 15: ...ndition stated below happens Solar energy is not available Battery voltage drops to either low DC warning voltage or the setting point in program 12 Utility first default Utility will provide power to the loads as first priority Solar and battery energy will provide power to the loads only when utility power is not available SBU priority Solar energy provides power to the loads as first priority I...

Page 16: ...hin 90 280VAC UPS If selected acceptable AC input voltage range will be within 170 280VAC 04 Power saving mode enable disable Saving mode disable default If disabled no matter connected load is low or high the on off status of inverter output will not be effected Saving mode enable If enabled the output of inverter will be off when connected load is pretty low or not detected 05 Battery type AGM d...

Page 17: ... 11 Maximum utility charging current 2A 10A 20A 30A default 40A 50A 60A 12 Setting voltage point back to utility source when selecting SBU priority or Solar first in program 01 22 0V 22 5V 23 0V default 23 5V 24 0V 24 5V 25 0V 25 5V 13 Setting voltage point back to battery mode when selecting SBU priority or Solar first in program 01 Battery fully charged 24V 24 5V 25V ...

Page 18: ...tility will charge battery at the same time Only Solar Solar energy will be the only charger source no matter utility is available or not If this inverter charger is working in Battery mode or Power saving mode only solar energy can charge battery Solar energy will charge battery if it s available and sufficient 18 Alarm control Alarm on default Alarm off 19 Automatically return to default display...

Page 19: ...h click is 0 1V 29 Low DC cut off voltage default setting 21 0V If self defined is selected in program 5 this program can be set up Setting range is from 20 0V to 24 0V Increment of each click is 0 1V Low DC cut off voltage will be fixed to setting value no matter what percentage of load is connected 31 Solar power balance When enabled solar input power will be automatically adjusted according to ...

Page 20: ...wer battery voltage output voltage output frequency load percentage load in VA load in Watt DC discharging current main CPU Version and second CPU Version Selectable information LCD display Input voltage Output voltage Default Display Screen Input Voltage 120V output voltage 120V Input frequency Input frequency 50Hz PV voltage PV voltage 60V MPPT Charging current Current 10A Current 10A MPPT Charg...

Page 21: ...ing current 1A Output frequency Output frequency 50Hz Load percentage Load percent 70 Load in VA When connected load is lower than 1kVA load in VA will present xxxVA like the chart below When load is larger than 1kVA 1KVA load in VA will present x xkVA like the chart below ...

Page 22: ...load in W will present xxxW like the chart below When load is larger than 1kW 1KW load in W will present x xkW like the chart below Main CPU version checking Main CPU version 00014 04 Secondary CPU version checking Secondary CPU version 00003 03 ...

Page 23: ...ll can charge the batteries Charging by utility Charging by PV energy No charging Fault mode Note Fault mode Errors are caused by internal circuit errors or external reasons such as over temperature output short circuited and so on PV energy can charge the batteries Charging by PV energy No charging Line Mode The unit will provide output power from the mains It will also charge the battery in line...

Page 24: ...rcuited or over temperature is detected by internal converter components 06 Output voltage is too high 07 Overload time out 08 Bus voltage is too high 09 Bus soft start failed 11 Main relay failed 51 Over current or surge 52 Bus voltage is too low 53 Inverter soft start failed 55 Over DC voltage in AC output 56 Battery connection is open 57 Current sensor failed 58 Output voltage is too low ...

Page 25: ... times every second 03 Battery is over charged Beep once every second 04 Low battery Beep once every second 07 Overload Beep once every 0 5 second 10 Output power derating Beep twice every 3 seconds 12 Solar charger stops due to low battery 13 Solar charger stops due to high PV voltage 14 Solar charger stops due to overload ...

Page 26: ...minal Input Frequency 50Hz 60Hz Auto detection Low Loss Frequency 40 1Hz Low Loss Return Frequency 42 1Hz High Loss Frequency 65 1Hz High Loss Return Frequency 63 1Hz Output Short Circuit Protection Line mode Circuit Breaker Battery mode Electronic Circuits Max bypass current 40A Efficiency Line Mode 95 Rated R load battery full charged Transfer Time 10ms typical UPS 20ms typical Appliances Output...

Page 27: ...0 load Surge Capacity 2 rated power for 5 seconds Nominal DC Input Voltage 24Vdc Cold Start Voltage 23 0Vdc Low DC Warning Voltage load 20 22 0Vdc 20 load 50 21 4Vdc load 50 20 2Vdc Low DC Warning Return Voltage load 20 23 0Vdc 20 load 50 22 4Vdc load 50 21 2Vdc Low DC Cut off Voltage load 20 21 0Vdc 20 load 50 20 4Vdc load 50 19 2Vdc High DC Recovery Voltage 29Vdc High DC Cut off Voltage 30Vdc No...

Page 28: ...loating Current Voltage T1 T1 10 T0 minimum 10mins maximum 8hrs T0 2 43Vdc 2 35Vdc 2 25Vdc Solar Charging Mode INVERTER MODEL 3KVA with PWM 3KVA with MPPT Rated Power 1250W 2000W Max efficiency 98 5 98 Max PV Array Open Voltage 80Vdc 145Vdc Operating Voltage Range 30 40Vdc N A PV Array MPPT Voltage Range N A 30 80Vdc Min battery voltage for PV charge 17Vdc Standby Power Consumption 2W Battery Volt...

Page 29: ...l Specifications INVERTER MODEL 3KVA with PWM SCC 3KVA with MPPT SCC Safety Certification CE Operating Temperature Range 0 C to 55 C Storage temperature 15 C 60 C Dimension D W H mm 125 x 300 x 440 Net Weight kg 10 5 11 ...

Page 30: ...splay and LEDs are flashing Battery is disconnected Check if battery wires are connected well Buzzer beeps continuously and red LED is on Fault code 07 Overload error The inverter is overload by 110 and time is up Reduce the connected load by switching off some equipment Fault code 05 Output short circuited Check if wiring is connected well and remove abnormal load The temperature of internal conv...

Page 31: ...4Vdc 200Ah min 3KVA 300 449 1100 600 222 525 900 124 303 1200 95 227 1500 68 164 1800 56 126 2100 48 108 2400 35 94 2700 31 74 3000 28 67 Note Backup time depends on the quality of the battery age of battery and type of battery Specifications of batteries may vary depending on different manufacturers ...

Page 32: ...undled with shared current cable and parallel cable this inverter supports parallel operation in default You may skip section 3 If not please purchase parallel kit and install this unit by following instruction from professional technical personnel in local dealer 2 Package Contents In parallel kit you will find the following items in the package Parallel board Parallel communication cable Current...

Page 33: ...ich might cause mal function of the parallel inverters Recommended battery cable and terminal size for each inverter Model Wire Size Torque value 3KVA 1 4AWG 2 3 Nm Recommended cable size of AC input and output for each inverter Model AWG no Torque 3KVA 8 AWG 1 4 1 6Nm You need to connect the cables of each inverter together Take the battery cables for example You need to use a connector or bus ba...

Page 34: ...n parallel Recommended specification of AC input breaker in single phase Model 2 units 3 units 4 units 5 units 6 units 3KVA 80A 230VAC 120A 230VAC 160A 230VAC 200A 230VAC 240A 230VAC Note 1 You also can use only one 40A breaker for each inverter at its AC input Note 2 Regarding three phase system you can use 3 pole breaker directly and the rating of the breaker should be compatible with the phase ...

Page 35: ...33 5 1 Parallel Operation in Single phase Two inverters in parallel Power Connection Communication Connection Three inverters in parallel Power Connection ...

Page 36: ...34 Communication Connection Four inverters in parallel Power Connection Communication Connection ...

Page 37: ...35 Five inverters in parallel Power Connection Communication Connection Six inverters in parallel Power Connection Communication Connection ...

Page 38: ...each phase Power Connection Communication Connection Four inverters in one phase and the rest two inverters for the other two phases Power Connection Note It s up to customer s demand to pick 4 inverters on any phase P1 L1 phase P2 L2 phase P3 L3 phase ...

Page 39: ...nverters in one phase another two inverters in second phase and the other inverter for the third phase Power Connection Communication Connection Three inverters in one phase and only one inverter for each remaining phase Power Connection ...

Page 40: ...38 Communication Connection Two inverters in two phases and only one inverter for each remaining phase Power Connection Communication Connection ...

Page 41: ...39 Two inverters in one phase and only one inverter for each remaining phase Power Connection Communication Connection One inverter in each phase Power Connection ...

Page 42: ...t the current sharing cables between the inverters in different phases Otherwise it may damage the inverters 6 PV Connection Please refer to the user manual of single unit for PV Connection CAUTION Each inverter should connect to PV modules separately ...

Page 43: ...judge condition Only apply for setting Solar first in program 1 Output source priority One Inverter Default When ONE is selected as long as one of the inverters has been connected to PV modules and PV input is normal parallel or 3 phase system will continue working according to rule of solar first setting For example two units are connected in parallel and set SOL in output source priority If one ...

Page 44: ...arallel in single phase Step 1 Check the following requirements before installation Correct wire connection Ensure all breakers in Line wires at load side are open and each Neutral wires of each unit is connected together Step 2 Turn on each unit and set PAL in LCD setting program 28 of each unit And then shut down all units NOET It s necessary to turn off switch when setting LCD program Otherwise...

Page 45: ...ing LCD program Otherwise the setting can not be programmed Step 3 Turn on all units sequentially LCD display in L1 phase unit LCD display in L2 phase unit LCD display in L3 phase unit Step 4 Switch on all AC breakers of Line wires in AC input If AC connection is detected and three phases are matched with unit setting they will work normally Otherwise the AC icon will flash and they will not work ...

Page 46: ...act your installer 81 Host data loss 82 Synchronization data loss 83 The battery voltage of each inverter is not the same 1 Make sure all inverters share the same groups of batteries together 2 Remove all loads and disconnect AC input and PV input Then check battery voltage of all inverters If the values from all inverters are close please check if all battery cables are in the same length and in ...

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