MidNite Solar MN5048DIY User Manual

Hybrid inverter / charger

Advertisement

Quick Links

MN5048DIY
User Manual
Hybrid Inverter / Charger
User Manual
MN5048DIY
10-539-1 MN5048DIY REV -
1 of 39

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MN5048DIY and is the answer not in the manual?

Questions and answers

Summary of Contents for MidNite Solar MN5048DIY

  • Page 1 MN5048DIY User Manual Hybrid Inverter / Charger User Manual MN5048DIY 10-539-1 MN5048DIY REV - 1 of 39...
  • Page 2 ØHigh voltages exist inside the MNS Hybrid Inverter. To avoid personal injury, users shall not disassemble the MNS Hybrid Inverter themselves. Contact our Midnite Solar technical support department if the unit is a need for repair. ØDo not install the MNS Hybrid Inverter in harsh environments such as moist, oily, flammable, explosive, or heavily dusty areas.
  • Page 3: Table Of Contents

    PROTECTIONS PROVIDED ........................33 FAULT CODE MEANING ........................34 TROUBLESHOOTING 7. SYSTEM MAINTENANCE ......................35 8. TECHNICAL PARAMETERS ......................36 9. WARRANTY ..........................39 10-539-1 MN5048DIY REV - 3 of 39...
  • Page 4: General Information

    Battery charging using PV solar or AC input, supporting use of lead-acid and lithium battery technologies. 360 ° all-round protection with a number of protection functions. Complete protections, including short circuit protection, over voltage and under voltage protection, overload protection, reverse protection, etc. 10-539-1 MN5048DIY REV - 4 of 39...
  • Page 5: Basic System Introduction

    4. Household load: Allow connection of various household and office loads, including refrigerators, lamps, TVs, fans and air conditioners. 5. MNS Hybrid Inverter: The energy conversion unit of the whole system. Specific system wiring method depends on the actual application scenario. 10-539-1 MN5048DIY REV - 5 of 39...
  • Page 6: Appearance

    Cooling fan ⑫ ⑤ Grounding screw hold PV port ⑬ RS485-2/CAN ⑥ Touch the key lightly ⑭ communication port ⑦ USB communication port Indicator light ⑮ ⑯ RS485-1 communication ⑧ LCD screen port 10-539-1 MN5048DIY REV - 6 of 39...
  • Page 7: Installation Instructions

    The mains AC input and AC output are high voltage, so please do not touch the wiring terminals. ➣ Keep fingers and tools away from the fan, do not touch it to prevent injury. 10-539-1 MN5048DIY REV - 7 of 39...
  • Page 8: Wiring Specificationsand Circuit Breaker Selection

    Recommended PV Maximum PV Recommended Models circuit breaker type wiring diameter input current MN5048DIY 10 AWG MNEPV20 or MNEDC20 Note: The voltage in series shall not exceed the maximum PV input open circuit voltage. 10-539-1 MN5048DIY REV - 8 of 39...
  • Page 9 ➣ Recommended battery input wire diameter and switch selection Recommended Rated battery Maximum Recommended Models circuit breaker type battery wiring discharge charge diameter current current MN5048DIY 2 AWG 125A MNEDC125 10-539-1 MN5048DIY REV - 9 of 39...
  • Page 10 Note: Breakers are there to protect the wire not the electronics. Select wire size for the application, and then select breakers for the wire size.All MidNite Solar breakers are rated for continuous duty. Recommended wire gauge and breaker size.
  • Page 11: Installation And Wiring

    Refer to the installation diagram of the unit as above. Warning: Danger of explosion! Never install the MNS Hybrid Inverter and lead-acid batteries in the same confined space! Also do not install in a confined place where battery gas may collect. 10-539-1 MN5048DIY REV - 11 of 39...
  • Page 12 ① Prior to AC input/output wiring, disconnect the external circuit breaker and confirm that the wire used is the appropriate AWG. Please refer to Section 2.2 on pg. 8 “Wiring Specifications and Circuit Breaker ② Properly connect the AC input wire according to the wire Selection”. sequence and terminal position shown in the igure on the next page. Please connect the ground wire irst, and then the hot wire and then the neutral wire. 10-539-1 MN5048DIY REV - 12 of 39...
  • Page 13 Note: The grounding wire shall be as large as possible (Not less than 10 AWG). The grounding point shall be as close as possible to the MNS Hybrid Inverter The shorter the grounding wire, the better. 10-539-1 MN5048DIY REV - 13 of 39...
  • Page 14 ② Properly connect the BAT wire according to the wire sequence and terminal position shown in the figure on the next page. 10-539-1 MN5048DIY REV - 14 of 39...
  • Page 15 Step 4: Check if the wiring is correct and tight. In particular, check if the battery polarity is reversed, if the PV input polarity is reversed and if the AC input is properly connected 10-539-1 MN5048DIY REV - 15 of 39...
  • Page 16 After the load is stable, turn on the load with a small surge current. Note: If the MNS Hybrid Inverter does not work properly or the LCD indicator is abnormal, refer to Chapter 6 to handle the error. 10-539-1 MN5048DIY REV - 16 of 39...
  • Page 17: Operating Modes

    4) Only Solar (Only Solar): Only PV charging, without Mains charging. This is the most energy efficient way in which the battery is charged, and is usually used in areas with good lighting conditions. 10-539-1 MN5048DIY REV - 17 of 39...
  • Page 18: Output Mode

    Mixed loading mode: when the battery is fully charged, the battery no longer needs to be charged. At this time, the load is provided by the photovoltaic and the commercial power Photovoltaic maximum power output is not enough to be supplemented by the utility 10-539-1 MN5048DIY REV - 18 of 39...
  • Page 19: Lcd Screen Operating Instructions

    Confirm /Enter Options under the settings menu, Indicators introduction Indicators Colors Description Steady on : M ains output AC/INV Yellow Flash: Inverter output Flash: Battery charging CHARGE Green Steady on : Charging completed FAULT Steady on : Fault state 10-539-1 MN5048DIY REV - 19 of 39...
  • Page 20 75%~100% . percentage is ≥ 75%. Indicates that the battery type of Indicates that the buzzer is not the machine is a lithium battery enabled 10-539-1 MN5048DIY REV - 20 of 39...
  • Page 21 Indicates the grid supplying power to ③ ⑦ supplying power to the inverter the charging circuit circuit Indicates PV module supplying Indicates the inverter circuit ④ ⑧ power to the charging circuit supplying power to the load 10-539-1 MN5048DIY REV - 21 of 39...
  • Page 22: Setup Parameters Description

    Then, press the “ENT” button to enter the parameter editing mode, and the value of the parameter is flashing. Adjust the value of the parameter with the “UP” and “DOWN” buttons. Finally, press the “ENT” button to complete the parameter editing and return to the parameter selection state. 10-539-1 MN5048DIY REV - 22 of 39...
  • Page 23 When the parameter [01] =SOL/SBU, the Utility to [05] 56.0V battery voltage is higher than the set value, and Battery Power default the output is switched from the mains to the Setpoint inverter. Setting range: 48V~60V. 10-539-1 MN5048DIY REV - 23 of 39...
  • Page 24 float charge voltage: 55.2V Lithium iron phosphate battery L14/L15/L16 corresponds to lithium iron phosphate battery 14 strings/15 strings/16 strings;16 string/15 string/14 string default constant [08] The charging voltage is 56.8V, 53.2V, LL14/L15/L16 49.6V, which are adjustable. 10-539-1 MN5048DIY REV - 24 of 39...
  • Page 25 , and the output is [14] 44V default voltage alarm not turned off; the setting range is 48V ~ 52V with a step of 0.4V. It is valid for user -defined battery and lithium battery . 10-539-1 MN5048DIY REV - 25 of 39...
  • Page 26 50W, the inverter automatically restarts. Automatic restart when overload is disabled. If Restart when [23] DIS an overload occurs and the output is turned off, over load the unit will not restart . 10-539-1 MN5048DIY REV - 26 of 39...
  • Page 27 Max PV charger current. Setting range: 0~40A current Battery fully After the battery is fully charged, it needs to be charged [37] 52V default lower than this set voltage before it can be recovery point recharged 10-539-1 MN5048DIY REV - 27 of 39...
  • Page 28: Battery Type Parameters

    (Adjustable) 1~30s Over - discharge delay time (Adjustable) 0~600 Equalizing charge duration minutes minutes minutes (Adjustable) 0~250 Equalizing charge interval days days days (Adjustable) 10~600 Absorption charge duration minutes minutes minutes minutes (Adjustable) 10-539-1 MN5048DIY REV - 28 of 39...
  • Page 29 43.6V 40.8V voltage (Adjustable) Over - 1~30s discharge (Adjustable) (Adjustable) (Adjustable) (Adjustable) (Adjustable) (Adjustable) delay time 10~600 Absorption charge minutes minutes minu tes minutes minutes minutes duration (Adjustable) (Adjustable) (Adjustable) (Adjustable) (Adjustable) (Adjustable) 10-539-1 MN5048DIY REV - 29 of 39...
  • Page 30: Other Functions

    APP. ③ Such as shown in the figure: pin 1 is 5V power supply; pin 2 is GND, pin 7 is RS485-A and pin 8 is RS485-B. 10-539-1 MN5048DIY REV - 30 of 39...
  • Page 31: Protection

    The unit will try again after three minutes. After five tries, the unit won’t Overload try again until the unit is powered down and restarted. protection Refer to the technical parameters table for information on settings. 10-539-1 MN5048DIY REV - 31 of 39...
  • Page 32 MN5048DIY User Manual PV reverse polarity When the PV polarity is reversed, the unit will not be damaged. protection AC reverse Prevents the inverter output from backfeeding into the AC input. protection 10-539-1 MN5048DIY REV - 32 of 39...
  • Page 33: Fault Code Meaning

    FanFail Fan failure 【21 】 EEPROM Memory failure 【22 】 ModelNumErr Model setting error 【23 】 Inverted AC Output Backfeed to Bypass AC RlyShort 【26 】 Input BusVoltLow Bus Undervoltage Protection 【29 】 10-539-1 MN5048DIY REV - 33 of 39...
  • Page 34: Troubleshooting

    Use a multimeter to check if the PV input voltage exceeds the PV overvoltage maximum allowable input voltage rated . Check if the battery is not connected or if the battery circuit breaker Battery missing alarm is not closed. 10-539-1 MN5048DIY REV - 34 of 39...
  • Page 35: System Maintenance

    ➣ MidNite Solar AKA MNS does not assume any liability for damage caused by: ① Improper use or improper installation, or location. (exposed to the elements) ② Open circuit voltage of the PV module exceeds the maximum allowable input voltage rating.
  • Page 36: Technical Parameters

    5 minutes; (110%<load<125%) ±10%: reporting Overload protection error and turn off the output after 10 seconds; Load>125% ±10%: reporting error and turn off the output after 5 seconds; 10-539-1 MN5048DIY REV - 36 of 39...
  • Page 37 120-500Vdc voltage range MPPT voltage 120-450Vdc range Battery voltage 40-60Vdc range Maximum 5000W output power Charge current range of solar 0-80A energy(settable) Charge short- Blown fuse circuit protection Wiring protection Inverse wiring protection 10-539-1 MN5048DIY REV - 37 of 39...
  • Page 38 -15°Cto55°C temperaturerange Storage - 25°C~60°C temperaturerange Humidity range 5% to 95% (three-proof paint protection) Noise ≤60dB Thermal Forced cooling with adjustable air speed dissipation Communication USB/RS485(WiFi/GPRS)/dry node control interface Dimension(L*W*D) 426mm*322mm*126mm Weight(kg) 11.6 10-539-1 MN5048DIY REV - 38 of 39...
  • Page 39: Warranty

    DIY breaker boxes and DIY accessories. At its option, MidNite Solar will repair or replace at no charge any MidNite product that proves to be defective within such warranty period. This warranty shall not apply if the MidNite Solar product has been damaged by unreasonable use, accident, negligence, service or modification by anyone other than MidNite Solar, or by...

Table of Contents