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 M2 Series Micro-inverter

 

 

1.4 Instructions Description 

For safety,  be  sure to  read  all  the safety  instructions  carefully prior  to  any  works, and  please  observe  the 

appropriate  rules  and  regulations  of  the  country  or  region  where  you  installed  all-in-one  energy  storage 

system. 

  DANGER 

· There is pos

sibility of dying due to electrical shock and high voltage. 

· Do not touch the operating component of the inverter; it might result in burning or death.

 

· To prevent risk of electric shock dur

ing installation and maintenance, please make sure that all AC and DC terminals 

are plugged out. 

· Do

 not touch the surface of the equipment while the housing is wet, otherwise, it might cause electrical shock. 

· Do not stay close to the 

equipment while there are severe weather conditions including storm, lighting, etc. 

· Before openin

g the housing, the SAJ inverter must be disconnected from the grid and PV generator; you must wait 

for at least five minutes to let the energy storage capacitors completely discharged after disconnecting from power 
source. 

·Please keep the

 power off prior to any operations 

·D

o not expose the battery to temperatures in excess of 50

°C. 

 

·Do not subject the battery to any strong force.

 

·Keep inflammable and explosive dangerous items or flames away from the battery.

 

·Do not soak the battery in 

water or expose it to moisture or liquids. 

·Do not use the battery in areas 

where the ammonia content of the air exceeds 20 ppm.  

 

 

 

  WARNING 

·Only qualified personnel who 

have full knowledge of local safety regulations and local standards on batteries can install, 

maintain, retrieve, and process this product.  

·SAJ 

Electric shall not be liable for any loss or warranty claims arising from any unauthorized change of product which may 

cause fatal injury to the operator, third party, or equipment performance. 

·F

or personal and property safety, do not short-circuit the positive (+) and negative (-) electrode terminals. 

 

  CAUTION 

·Risk of damage due to improper modification

 

·Use professional tools when operating the products.

 

· The inverter will become hot duri

ng operation. Please do not touch the heat sink or peripheral surface during or shortly after 

the operation. 

 

  NOTICE 

·

During the installation of the battery, the circuit breaker must be disconnected from the battery pack wiring. 

1.5 Explanations of Symbols 

 

Symbol 

Description 

 

Dangerous electrical voltage 

This device is directly connected to the public grid, thus all work to the battery shall only be 
carried out by qualified personnel. 

 

Danger to life due to high electrical voltage! 

There might be residual currents in the inverter because of the large capacitors. Wait for 5 
minutes before you remove the front lid.

 

 

Danger of hot surface 

The components inside the battery will release a lot of heat during operation. Do not touch metal 
plate housing during operation. 

 

An error has occurred 

Please go to Chapter  

Troubleshooting

 to remedy the error. 

 

This device shall NOT be disposed of in residential waste. 

 

CE Mark 

Equipment with the CE mark fulfills the requirements of the Low Voltage Directive and Electro-
Magnetic Compatibility. 

 

This device complies with the RoHS Directive. 

 

 

 

 

 

 

 

Summary of Contents for M2 Series

Page 1: ...www saj electric com Add SAJ Innovation Park No 9 Lizhishan Road Science City Guangzhou High tech Zone Guangdong P R China GUANGZHOU SANJING ELECTRIC CO LTD M2 Series MICRO INVERTER USER MANUAL M2 1 8...

Page 2: ...ble shooting and safety Please follow the instructions of this manual so that we can ensure delivery of our professional guidance and wholehearted service Customer orientation is our forever commitmen...

Page 3: ...re 14 3 4 1 Installation Tools 15 3 4 2 Mounting Procedures 16 Chapter 4 Electrical Connection 17 4 1 Safety Instruction 18 4 2 Specifications for Electrical Interface 18 4 3 AC Side Cable Connection...

Page 4: ...in death or serious injury WARNING WARNING indicates a hazardous situation which if not avoided can result in death or serious injury or moderate injury CAUTION CAUTION indicates a hazardous condition...

Page 5: ...nnel who have full knowledge of local safety regulations and local standards on batteries can install maintain retrieve and process this product SAJ Electric shall not be liable for any loss or warran...

Page 6: ...DC electricity generated by solar panels into AC electricity which is in accordance with the requirements of the public grid and sends the AC into the grid reducing the load pressure of the grid Figu...

Page 7: ...le Power STC Range Wp 400 700 Peak Power Tracking Voltage V 35 50 Operating Voltage Range V 16 55 Maximum Input Voltage V 60 Maximum Input Current A 20 x 4 Back Feed Current A 0 Overvoltage Category O...

Page 8: ...o 60 45 to 60 with derating Communication Wi Fi Bluetooth Cooling Method Natural Convection Ambient Humidity 0 100 non condensing Altitude 2000m Noise dBA 20 Ingress Protection IP67 Dimensions W x H x...

Page 9: ...ons 3 2 Pre installation Check 3 2 1 Check the package Although SAJ s inverters have thoroughly tested and checked before delivery it is uncertain that the inverters may suffer damages during transpor...

Page 10: ...e consider the solidity of the wall or the rail including accessories Make sure the wall or the rail has enough strength to hold the screws and bear the weight of products Please ensure the mounting b...

Page 11: ...tective gloves Dust mask Earplugs Goggles Insulated shoes Heat shrink tubing Heat gun Hammer drill Drill bit 10 Rubber mallet Phillips screwdriver Wrench 3 4 2 Mounting Procedures Step 1 Plan and inst...

Page 12: ...cians in accordance with local and national electrical standards and regulations WARNING When the photovoltaic array is exposed to light it supplies a DC voltage to the inverter Ensure that all AC cab...

Page 13: ...nes to port L and port N Figure 4 3 Split phase power grid 2 If the micro inverter is connected to 230 400V three phase WYE power grid connect the live line to port L and connect the neutral line to p...

Page 14: ...tor wiring For multi machine system prepare and install AC cables Use AC cables to connect the microinverters to the distribution box 1 Use the AC trunk connector unlock tool to align the slot on the...

Page 15: ...and then connect it to the local power grid 3 If there is an empty port on the bus box please insert the main cable protective cover into the empty port to ensure that the connector is dust proof and...

Page 16: ...s Figure 4 19 Multi machine PV connection Grid Figure 4 20 Single machine PV connection NOTICE If there are more than one installation site please make the installation map separately and give a clear...

Page 17: ...at start up The definition of LED is shown as below Status Indicates Green Solid Working normally Green Breathing Standby Waiting Red Flashing 1 Unable to connect Red Solid Fault Red Breathing Upgrad...

Page 18: ...r first a Click Register Choose whether you are an owner or an installer or distributor b Follow the instructions on the screen to complete the registration 4 Use the account and password to log in to...

Page 19: ...then click on Next Step 3 Select your device and click WiFi Configuration Step 4 Select your WiFi and enter the WiFi passwords then choose your correct router Step 5 Click the right arrow of your devi...

Page 20: ...r Me Step 2 Fill in the inverter SN click the button to read the device information then click Next Step 3 Fill in the plant basic information and then enter the Plant list page Step 4 Click on the pl...

Page 21: ...inverter If this fault appears continuously please contact the SAJ service 5 Frequency Config Error Please check whether the safety regulations are selected correctly Disconnecting the AC and DC switc...

Page 22: ...e selected correctly After disconnecting the AC switch for 5 minutes close the AC switch and restart the inverter If this fault appears continuously please contact the SAJ service 18 Master Grid Frequ...

Page 23: ...ling facility in your area Contact SAJ Guangzhou Sanjing Electric Co Ltd SAJ Innovation Park No 9 Lizhishan Road Guangzhou Science City Guangdong P R China Postcode 510663 Web http www saj electric co...

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