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3.

 

MPPT Solar Charger Controller 

4.

 

High Speed DC/AC Transfer Switch. 

Packed with unique features, it is one of the most technically advanced off grid solar inverters on the market. 
Some solar inverters on the market physically include a solar charger which has no communication with the 
PCBs of the inverter. The electronically integrated MPPT charge controller we have integrated into this 
inverter’s design is also able to harvest the PV production from your panels to charge the batteries even 
when the inverter is powered off.   
The inverter’s powerful DSP(digital signal processor ) makes the M series solar inverters very versatile and 
almost all of its specifications can be adjusted via its LCD, such as AC output voltage, frequency, power 
priority, low/high battery cutoff, charging profiles & amperage, etc. 
 

 

It outputs two hot lines of 120/240vac simultaneously, between each hotline and neutral, it is 120Vac, 
between two hotlines, it is 240Vac. You can get the full power on 240Vac and half power on each of 
the hotlines. 

 

It supports different types of remote monitoring with Remote LCD Panel (Sold separately), Wi-Fi or 
GPRS module or computer. 

 

The BMS port communicates with lithium battery for optimal operation of batteries. 

 

It also has a programmable “US2” setting which works with lithium batteries without BMS 
communication with the inverter. 

 

The 300% surge capacity of 5 seconds makes it possible to support demanding inductive loads. 

 

The M Series models are available in 230Vac (single phase) and 120/240Vac(split phase), together 
with a manual 50Hz/60Hz frequency switch, the product line is compatible with all the major utility 
standards worldwide. 

 
Thus the M Series Pure Sine Wave Inverter/Charger is suitable for a myriad of applications including 
renewable energy systems, utility, truck, RV and emergency vehicles etc. 
 
To get the most out of the power inverter, it must be installed, used and maintained properly. Please read the 
instructions in this manual before installing and operating.     
 

2.2 Mechanical Drawing 

Summary of Contents for M12048D

Page 1: ...rter Charger User s Manual 6KW 12KW 48Vdc 120 240Vac Split Phase Version 1 3 PN 60000 20211231 Last edition Dec 28th 2021 Manufacturer Information Sigineer Power Limited Email info sigineer com TEL 86 769 82817616 US Warehouse 4415 S 32nd St Phoenix AZ 85040 ...

Page 2: ...4 11 Automatic Recovery Operation 27 2 4 12 Other Features 27 3 Installation 27 3 1 Location 27 3 2 Unpacking and Inspection 27 3 3 Battery Wiring 28 3 4 PV Wiring 29 3 5 AC Wiring 29 3 6 Communication With Lithium Batteries 31 3 7 Communication With Computer 32 3 8 Grounding 32 3 9 Mounting Flange 32 4 Maintenance Troubleshooting 33 5 Warranty 35 Appendix 1 M Series Inverter Charger Spec Sheet 36...

Page 3: ... minimum air flow of 145CFM is required to prevent overheating 1 1 3 To avoid a risk of fire and electronic shock Make sure that any user installed wiring is in good electrical condition and is not undersized Do not operate the inverter with damaged or substandard wiring Consult a professional or your local codes for acceptable wire size to carry the necessary voltage for the installation and inte...

Page 4: ...tal causing a severe burn 1 2 5 To reduce the risk of injury charge only rechargeable batteries suitable for use by this inverter such as deep cycle lead acid lead antimony lead calcium gel cell absorbed mat NiCad NiFe or Lithium battery Other types of batteries may burst causing personal injury and damage NEVER charge a frozen battery See battery type of this manual for more information about acc...

Page 5: ...it is 120Vac between two hotlines it is 240Vac You can get the full power on 240Vac and half power on each of the hotlines It supports different types of remote monitoring with Remote LCD Panel Sold separately Wi Fi or GPRS module or computer The BMS port communicates with lithium battery for optimal operation of batteries It also has a programmable US2 setting which works with lithium batteries w...

Page 6: ...www sigineer com 6 1 ON OFF Power Switch 2 LCD Display 3 Status Indicator 4 Charging Indicator 5 Fault Indicator 6 Function Buttons ...

Page 7: ...arious harsh situations Solar Priority or SBU developed for renewable energy systems 2 4 Electrical Performance 2 4 1 Invert Topology The M Series pure sine wave inverter charger is built according to the following topology Invert Full Bridge Topology Charge Isolated Boost Topology When operating in invert mode the direct current DC that enters the inverter from the batteries is filtered by a larg...

Page 8: ...ger has a very rapid charge current available and the max charge current can be adjusted from zero to 100 in small increments on the inverter s LCD This is helpful if this powerful charger applies charging to a small capacity battery bank There are three main charging stages Bulk Charging This is the initial stage of charging While Bulk Charging the charger supplies the battery with controlled con...

Page 9: ... has been added into the M series inverter charge controller It reverses the buildup of negative chemical effects like stratification a condition where acid concentration is greater at the bottom of the battery than at the top Equalization also helps to remove sulfate crystals that might have built up on the plates If left unchecked this condition called sulfation and will reduce the overall capac...

Page 10: ...equalization and return to float stage The M Series pure sine wave inverter charger is built with MPPT solar charging modules up to 120A Model AC Charging Current MPPT Solar Charger Max Charging Current M6048D 60A 80A 140A M12048D 100A 2 60A 120A 180A Note The M12048D is built with two separate 60A MPPT controllers each one capable of handling different voltages and amperages from different PV arr...

Page 11: ...n AC load greater than 500 watts at 120Vac is turned on the inverter recognizes the need for power and automatically starts inverting and output goes to full voltage When there is no load or less than 500 watts detected the inverter automatically goes back into search mode to minimize energy consumption from the battery bank In Power saver on mode the inverter will draw power mainly in sensing mom...

Page 12: ...the switch has to be reset to activate the inverter Whenever it triggers protection mode and the fault is cleared the inverter must be reset to resume work 2 4 6 Remote Monitoring The M series inverter can be remotely monitored and controlled It supports 4 types of remote monitoring 1 Plug in the remote LCD panel to the RS485 port Applied to ones produced after 2021 May 2 Connect to a computer via...

Page 13: ...us of the PV system from a mobile phone APP or from the website anytime anywhere The inverter s AC output power can be powered on and off via the APP The PV Butler APP will automatically refresh the data in every 5 minutes To access real date please roll down the screen to refresh To monitor the inverter via both WIFI and USB port the CUBEWiFi module can be connected via a short extension cable 2 ...

Page 14: ...C voltage input frequency PV voltage battery voltage and charger current Configuration Program and Fault Information Indicates the setting programs Indicates the warning and fault conditions Warning Code Flashing Error Code Constantly On Output Information Indicate output voltage output frequency load percent load in VA load in Watt and discharging current Battery Information Indicates battery lev...

Page 15: ...hese three signs indicate the AC output priority SOL FIRST indicates solar Priority BAT FIRST indicates battery priority UTI FIRST indicates utility priority Mute Operation Indicates unit audible alarm is disabled LCD SETTING The M series inverter LCD allows users to virtually change all of its specs It will enter setting mode if the ENTER button is held for over 3 seconds Press UP or DOWN button ...

Page 16: ...ity becomes battery utility battery priority is higher than utility priority In this mode the inverter will transfer between DC and AC as per the settings of program 12 and 13 Users can set it to utility priority to stop the cycling Note When the inverter power priority mode is changed between the three different modes the setting of other programs will be saved with the associated power priority ...

Page 17: ...erter is in US2 it could not correctly display the accurate SOC of the lithium batteries The displayed SOC is converted from battery voltage The SOC will change only when the battery voltage changes are big enough Due to the ripple current from the utility charger when US2 is set for charging lithium batteries it is recommended to set the max utility charging current at 30 of the nominal charge cu...

Page 18: ...t frequency is set to 50Hz or 60Hz the acceptable AC input frequency for the utility charger is 45 65Hz If the AC input frequency drops out of the 45 65Hz range the inverter will transfer to battery The AC input has to return to 47 63Hz to activate the utility charger Program 12 DC to AC Transfer Voltage The setting works when program 01 is in SBU Priority or Solar Priority Mode Model Default Valu...

Page 19: ...battery SOC will be displayed when BMS communication is established If user defined setting USE US2 is selected in program 5 this program can be set up After User defined USE US2 setting is selected in program 5 this program can be set up Low DC cut off voltage will be fixed to setting value regardless of load percentage When low DC Cut Off voltage is reached If battery is the only power source in...

Page 20: ...efault 120min 5min 900min Settable Program 27 Equalization Interval Default 30days 1 day 90 days Settable Program 28 Equalization Activated Immediately If equalization function is enabled in program 23 this program can be set up If Enable is selected in this program it will activate battery equalization immediately and LCD main page will shows Eq If Disable is selected it will cancel equalization ...

Page 21: ...utput Voltage 240V default 09 AC Output Frequency 50Hz default 11 Maximum Utility Charging Current 10A to Max default 30A 12 DC to AC Transfer Voltage Default 46 0V 44 0V 51 2V settable 12 DC to AC Transfer Voltage Lithium mode default 40 5 50 settable 13 AC to DC Transfer Voltage Default 54 0V 48 0V 58 0V Settable 13 AC to DC Transfer Voltage Li mode default 80 60 100 settable 14 Charger Power So...

Page 22: ...s left unattended 17 Beeps once between AC and DC Transfer Alarm on default 17 Beeps once between AC and DC Transfer Alarm off 19 C V Charging Voltage 48V model default 56 4V 48 0V 58 4V Settable 20 Float Charging Voltage 21 Low Battery Cut Off Voltage Without BMS communication 21 Low Battery Cut Off Voltage With BMS communication 22 RS485 Communication Address Default 001 001 255 Settable For ext...

Page 23: ...ble Display Setting The LCD display information can be changed by pressing the UP or DOWN key The selectable information is displayed in the following order input voltage input frequency PV voltage MPPT charging current MPPT charging power battery voltage output voltage output frequency load percentage load in VA load in Watt DC discharging current inverter PCB software version and MPPT PCB softwa...

Page 24: ...nt inverter status when the up or down button is pressed The last two pages of LCD show the software version of the inverter PCB and MPPT PCB There are 8 digits If the MPPT PCB is not activated it will display 000 00 000 When the LCD is switched to a new page the LCD will return to the default home screen in 2 minutes without operation When the LCD enters the setting page the LCD will return to th...

Page 25: ...wer off and qualified PV input the PV charger will be activated and the rest part of the inverter will remain powered off In this mode the utility power can only illuminate the LCD it can t charge batteries When the inverter shuts off due to low battery voltage and the switch is kept on on position the inverter will use qualified utility power or PV power to charge batteries and wake up at cold st...

Page 26: ... in Program 12 DC to AC Transfer The NO C pins are constantly open they will close when battery voltage reaches low alarm or the setting in Program 12 DC to AC Transfer to start the generator Once the generator is started and battery voltage increases with charging the dry contact pins will open at the setting of Program 13 AC to DC Transfer to avoid overcharging Unit Status Operation NC C NO C Po...

Page 27: ...ve Humidity 0 to 95 non condensing Cooling Forced air Warning Operation in an environment where water vaper condenses on the unit will invalid warranty 3 2 Unpacking and Inspection Before installation please inspect the unit Be sure that nothing inside the package is damaged You should have received the following items in the package Inverter x 1 User manual x 1 Communication cable x 1 set Wi Fi M...

Page 28: ...mped or preferably soldered and crimped copper compression lugs unless aluminum mechanical lugs are used Soldered connections alone are not acceptable High quality UL listed battery cables are available These cables are color coded with pressure crimped sealed ring terminals Battery terminals must be clean to reduce the resistance between the DC terminal and cable connection A buildup of dirt or o...

Page 29: ...g the battery cables and that AC power is disconnected from the inverter input 3 4 PV Wiring CAUTION Before connecting to PV modules please install a separate DC circuit breaker between inverter and PV modules as per the solar charger rating The PV terminal pins can accept cable size up to 5AWG Diameter 4 6mm and the torque for the screws is 1 8Nm Max PV Array Open Circuit Voltage is 250Vdc please...

Page 30: ...t sure about how to wire any part of your inverter Wiring Option 1 230V single phase Input Hot line Neutral Ground Output Hot line Neutral Ground Wiring Option 2 240V split phase Input Hot line Hot line Ground Output Hot line Hot line Neutral Note As the two split phase hot lines is 180 degrees out of phase with each other the inverter is only able to output full power at 240Vac Users can only get...

Page 31: ...mage please check with manufacturer of air conditioner that if it s equipped with time delay function before installation Otherwise this off grid solar inverter will trigger overload fault and cut off output to protect your appliance but sometimes it could still cause damage to the air conditioner Preventing Paralleling of the AC Output The AC output of the unit should never be connected to the ut...

Page 32: ... 1 Out of the lithium batteries set one unit as the master and the rest as slave as per the lithium DIP switches 2 Connect the master unit with the inverter which shows Host If the user connects the master battery to one of the rest slave inverters in the group the inverter will automatically work as the master unit but the communication will be slower 3 7 Communication With Computer The inverter ...

Page 33: ...Warning and Fault When the warning is triggered the inverter will still operate until it becomes a Fault When a fault is triggered the inverter will shut off and needs to be manually reset to resume operation Warning Code Warning Event Audible Alarm Icon flashing 01 MPPT PCB Inverter Fan Abnormal Beep once every second 03 High Battery Voltage Beep once every second 04 Low Battery Voltage Beep once...

Page 34: ...s and buzzer will be active for 3 seconds and then complete off The battery voltage is too low 45 8V Batteries are not connected loose battery side connections Check the batteries and cable connections Check DC fuse and breaker Charge battery Replace battery No response after power on No indication The battery voltage is far too low 33 6V Battery polarity is connected reversed Check if batteries a...

Page 35: ...is a half wave load load that uses only a half cycle of the power see figure 1 This trends to cause an imbalance of the magnetic field of the transformer reducing its rated working frequency from 20KHz to say maybe 15KHz it varies according to different loads This way the frequency of noise falls exactly into the range 200Hz 20KHz that human ear can hear The most common load of such kind is a hair...

Page 36: ...rly installed physically damaged or altered either internally or externally or damaged from improper use or use in an unsuitable environment violations of the warnings in the manual will invalid the warranty b the product if it has been subjected to fire water generalized corrosion biological infestations or input voltage that creates operating conditions beyond the maximum or minimum limits liste...

Page 37: ...arge Voltage Range Appliance Mode 154V 260Vac 164V 250Vac Recovery UPS Mode 184V 260Vac 194 250Vac Recovery Frequency Range 45 65Hz 47 63Hz Recovery Maximum Charge Current 40A 50A 60A 70A 80A 100A BYPASS PROTECTION Grid Generator Typical Transfer Time 10ms Overload Protection SMPS Load Circuit breaker Output Short Circuit Protection Circuit breaker AC Input Breaker 63A 63A 63A 80A 80A 80A AC outpu...

Page 38: ...erved Specifications in this manual are subject to change without prior notice SAVE THIS MANUAL READ THIS MANUAL BEFORE INSTALLATION IT CONTAINS IMPORTANT SAFETY INSTALLATION AND OPERATING INSTRUCTIONS KEEP IT IN A SAFE PLACE FOR FUTURE REFERENCE ...

Page 39: ...www sigineer com 39 Sigineer Power Limited Email info sigineer com US Warehouse 4415 S 32nd St Phoenix AZ 85040 TEL 86 769 82817616 www sigineer com ...

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