User Manual for Midnite Solar models including: MN5048DIY, Hybrid Inverter, Charger
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10-539-1 MN5048DIY REV - 2 of 39 MN5048DIY User Manual Important safety instructions Please keep this manual for future use. The MNS Hybrid Inverter System is an all-in-one solution for 120 volt AC production, battery charging
MN5048DIY User Manual. Important safety instructions. Please keep this manual for future use. The MNS Hybrid Inverter System is an all-in-one solution for 120 volt AC production.. View
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DocumentDocumentMN5048DIY User Manual Hybrid Inverter / Charger User Manual MN5048DIY 10-539-1 MN5048DIY REV - 1 of 39 MN5048DIY User Manual Important safety instructions Please keep this manual for future use. The MNS Hybrid Inverter System is an all-in-one solution for 120 volt AC production, battery charging from the AC input and a built-in MPPT PV Charge Controller This manual contains all safety, installation and operating instructions for the MNS Hybrid Inverter. Please read all instructions and precautions in the manual carefully before installation and use. 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. The unit is not rain-proof, do not install outside unless under cover where it will not be exposed to rain. ØThe mains input and AC output are high AC voltage, do not touch the wiring terminals. ØThe housing of the MNS Hybrid Inverter is hot when it is operating especially under full load. The exposed heatsink may be very hot, do not touch. ØDo not open the terminal protective cover when the MNS Hybrid Inverter is operating. ØIt is necessary to install a proper external circuit breaker on the 120V AC in and PV in connections. The unit has an internal circuit breaker on the 120V AC in but an external circuit breaker is required in addition. ØAlways turn off all combiners and AC circuit breakers of the PV array, AC mains & battery before installing and/or adjusting the wiring of the MNS Hybrid Inverter. ØAfter installation, check that all wire connections are tight to avoid terminal heating due to poor and a loose connection, which is dangerous and may cause fires. ØThe MNS Hybrid Inverter is for off-grid only. DO NOT Connect the AC OUTPUT to any source of AC including GRID and GENERATOR. 10-539-1 MN5048DIY REV - 2 of 39 MN5048DIY User Manual CONTENTS 1. GENERAL INFORMATION ...........................................................................................................4 1.1 PRODUCT OVERVIEW AND FEATURES...................................................................................................4 1.2 BASIC SYSTEM INTRODUCTION........................................................................................................... 5 1.3 APPEARANCE.................................................................................................................................6 2. INSTALLATION INSTRUCTIONS .................................................................................................7 2.1 INSTALLATION PRECAUTIONS ............................................................................................................ 7 2.2 WIRING SPECIFICATIONSAND CIRCUIT BREAKER SELECTION.....................................................................8 2.3 INSTALLATION AND WIRING............................................................................................................. 11 3. OPERATING MODES .................................................................................................................17 3.1 CHARGING MODE ......................................................................................................................... 17 3.2 OUTPUT MODE ............................................................................................................................. 18 4. LCD SCREEN OPERAT ING INSTRUCTIONS .............................................................................19 4.1 OPERATION AND DISPLAY PANEL .....................................................................................................19 4.2 SETUP PARAMETERS DESCRIPTION ...................................................................................................22 4.3 BATTERY TYPE PARAMETERS............................................................................................................ 28 5. OTHER FUNCTIONS .................................................................................................................29 5.1 DRY NODE ...................................................................................................................................30 5.2 USB COMMUNICATION PORT.......................................................................................................... 30 6. PROTECTION ...........................................................................................................................31 6.1 PROTECTIONS PROVIDED................................................................................................................ 31 6.2 FAULT CODE MEANING ................................................................................................................... 33 6.3 TROUBLESHOOTING ............................... ...................................................................................... 34 7. SYSTEM MAINTENANCE..........................................................................................................35 8. TECHNICAL PARAMETERS ........................................................................................................36 9. WARRANTY ..................... ........................................................................................................39 10-539-1 MN5048DIY REV - 3 of 39 MN5048DIY User Manual 1. General information 1.1 Product overview and features DIY series is a new a-ll-in- -one hybrid solar charger/ inverter, which integrates battery MPPT solar & AC input charging with sine wave output. Thanks to DSP control and advanced control algorithm, it has fast response speed, high reliability and high industrial standards. Four charging modes are available, i.e. Only Solar, Mains Priority, Solar Priority and Mains & Solar hybrid charging; and two output modes are available, i.e. Inverter and Mains, to meet different application requirements. The solar charging module applies the latest optimized MPPT technology to quickly track the maximum power point of the PV array in any environment and obtain the maximum energy of the solar panel in real time. Through a state of the art control algorithm, the AC-DC charging module realizes fully digital voltage and current double closed loop control, with high control precision in a small volume. Wide AC voltage input range and complete input/output protections are designed for stable and reliable battery charging and protection. Based on full-digital intelligent design, the DC-AC inverter module employs advanced SPWM technology and outputs pure sine wave to convert DC into AC. It is ideal for AC loads such as household appliances, power tools, industrial equipment, and electronic audio and video equipment. The product comes with a segment LCD display design which allows real-time display of the operating data and status of the system. Comprehensive electronic protections keep the entire system safer and more stable. Features: 1. Full digital voltage and current double closed loop control, advanced SPWM technology, pure sine wave output. 2. Two output modes: mains bypass and inverter output; uninterrupted power supply. 3. Available in 4 charging modes: Only Solar, Mains Priority, Solar Priority and Mains & Solar hybrid charging. 4. Advanced MPPT technology with an efficiency of 99%. 5. Designed with a LCD screen and 3 LED indicators for dynamic display of system data and operating status. 6. ON/OFF rocker switch for AC output control. 7. Power saving mode available to reduce no-load loss. 8. Intelligent variable speed fan to efficiently dissipate heat and extend system life. 9. Battery charging using PV solar or AC input, supporting use of lead-acid and lithium battery technologies. 10. 360 ° all-round protection with a number of protection functions. 11. 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 MN5048DIY User Manual 1.2 Basic system introduction The figure below shows the system application scenario of this product. A complete system consists of the following parts: 1. PV module: Converts light energy into DC power, and charges the battery through the onboard MPPT solar charge controller, or to directly drive the inverter making AC power to drive the loads. (battery-less mode) 2. Mains or generator: Connected at the AC input, to power the loads while charging the battery. If the mains or generator is not connected, the system can also operate normally, and the load is powered by the battery and PV array. 3. Battery: Provided to ensure normal power supply to the system loads when solar energy is insufficient and the AC Main is not connected. 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 1.3 Appearance MN5048DIY User Manual Overload protector ON/OFF rocker switch AC input port AC output port Grounding screw hold RS485- 2/CAN communication port USB communication port RS485-1 communication port Dry contact port Cooling fan Battery port Cooling fan PV port Touch the key lightly Indicator light LCD screen 10-539-1 MN5048DIY REV - 6 of 39 MN5048DIY User Manual 2. Installation Instructions 2.1 Installation precautions Be very careful when installing the battery. Wear safety glasses when installing a lead-acid flooded battery. If you come into contact with the battery acid, rinse with clean water immediately. Do not place metal objects near the battery to prevent short-circuit of the battery terminals. Hydrogen gas may be generated when the battery is charging. Please ensure \ good ventilation. When installing the unit, be sure to leave enough space around the MNS Hybrid Inverter for proper heat dissipation. Do not install the MNS Hybrid Inverter and lead-acid battery(s) in the same cabinet to avoid corrosion by sulfuric acid gas generated during battery operation. Only batteries that meet the requirements of the MNS Hybrid Inverter can be charged. Poorly connected connections and corroded wires may cause terminal heating which could melt the wire insulation, burn the surrounding materials, and even cause fires. So, make sure the terminals have been tightened, and the wires are secured with ties to avoid loose connections caused by shaking of wires during mobile applications. Avoid mounting in direct sunlight and where rainwater may get inside if mounting outside.. Even after the power is turned off, there is still high voltage inside the unit. Do not open or touch the internal components, and avoid related operations until the capacitor completely discharges. Do not install the MNS Hybrid Inverter in harsh environments such as moist, oily, flammable or explosive, or heavily dusty areas. Do NOT reverse polarity at the battery input terminals, otherwise it may damage the device and/or cause a fire. 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 MN5048DIY User Manual 2.2 Wiring specifications and circuit breaker selection Wiring and installation must comply with national and local electrical codes. Recommended PV array wiring specifications and circuit breaker selection: Since the output current of the PV array is affected by the type, connection method and illumination angle of the PV module, the minimum wire diameter of the PV array is calculated according to its short circuit current; refer to the short-circuit current value in the PV module specification (the short-c-ircuit current is constant when the PV modules are connected in series; the short -circuit current is the sum of the short circuit currents of all PV modules connected in parallel); the short circuit current of the PV array shall not exceed the maximum input current. Refer to the table below for PV input wire diameter and switch: Models Recommended PV wiring diameter Maximum PV input current Recommended circuit breaker type MN5048DIY 10 AWG 18A 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 MN5048DIY User Manual Refer to the table below for recommended AC input wire diameter and switch: Models Recommended AC input wiring diameter Maximum bypass input current Recommended circuit breaker type MN5048DIY 6 AWG 63A Note: There is already an appropriate circuit breaker at the Mains input wiring terminal, so it is not necessary to add one more. MNEAC60 Recommended battery input wire diameter and switch selection Models MN5048DIY Recommended battery wiring diameter 2 AWG Rated battery discharge current 125A Maximum charge current 80A Recommended circuit breaker type MNEDC125 10-539-1 MN5048DIY REV - 9 of 39 MN5048DIY User Manual Recommended AC output wiring specifications and circuit breaker selection Models MN5048DIY Recommended AC output wiring diameter 6 AWG Rated inverter AC output current 42A Maximum bypass output current 63A Recommended circuit breaker type MNEAC60 Note: The wire gauge is for reference only. If the distance between the PV array and the MNS Hybrid Inverter or the distance between the MNS Hybrid Inverter and the battery is relatively long, using a bigger gauge wire can reduce the voltage drop to improve system performance. Note: The above are only recommended wire gauge and circuit breaker. Please select the appropriate wire gauge and circuit breaker according to actual installation requirements. 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. Max Current Wire gauge and breaker size 20 Amps 12 AWG 20 Amp Breaker 25 Amps 10 AWG 30 Amp Breaker 30 Amps 10 AWG 30 Amp Breaker 40 Amps 8 AWG 50 Amp Breaker 50 Amps 8 AWG 50 Amp Breaker 60 Amps 6 AWG 60 Amp Breaker 125 Amps 2 AWG 125 Amp Breaker Recommended MidNite Breaker MNEDC20 MNEPV20 MNEDC30 MNEPV30 MNEDC30 MNEPV30 MNEDC40 MNEPV40 MNEDC50 MNEPV50 MNEDC60 MNEPV60 MNEDC125 - MNEPV Breakers are dinrail mount and fit in the MNDC125 enclosure. 10-539-1 MN5048DIY REV - 10 of 39 MN5048DIY User Manual 2.13 Installation and wiring Installation steps: Step 1: Determine the installation position and the space for heat dissipation. Determine the installation position of the MNS Hybrid Inverter, such as wall surface; when installing the MNS Hybrid Inverter, ensure that there is enough air flowing through the heat sink, and space of at least 200mm/8 inches to the left and right air outlets of the inverter are open to ensure natural convection heat dissipation. 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 MN5048DIY User Manual Step 2: Remove the terminal cover Step3: Wiring AC input / output wiring method: 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 Selection". Properly connect the AC input wire according to the wire 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 MN5048DIY User Manual Ground LLive N Neutral Properly connect the AC output wire according to the wire sequence and terminal position shown in the figure below. Please connect the ground wire first, and then the hot wire and the neutral wire. The ground wire is connected to the grounding screw hole on the cabinet using a ring terminal or copper lug. Ground LLive N Neutral 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 MN5048DIY User Manual PV input wiring method: Prior to wiring, disconnect the external circuit breaker and confirm that the wire used is appropriate AWG. Please refer to Section 2.2 "Wiring Specifications and Circuit Breaker Selection"; Properly connect the PV input wire according to the wire sequence and terminal posi on shown in the figure below. PV+: PV input positive pole PV - : PV input negative pole BATTERY wiring: Prior to wiring, disconnect the external circuit breaker and confirm that the wire used is appropriate AWG. Please refer to Section 2.2 "Wiring Specifications and Circuit Breaker Selection". The BAT wire needs to be connected to the MNS Hybrid Inverter using a copper ring terminal either setscrew or crimp type is acceptable. Insure the crimp is tight if using crimp style to prevent excessive heat generation caused by excessive contact resistance from a loose terminal; 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 MN5048DIY User Manual BAT +: Battery positive electrode BAT - : Battery negative electrode WarMnainingssi:nput, AC output and PV array are all high voltage. So, before wiring, be sure to disconnect the appropriate circuit breaker. Be very careful during DC wiring; do not close the circuit breaker during wiring, and ensure that the "+" and "-" pole leads of each component are connected properly; a circuit breaker must be installed at the battery input terminals. Refer to Section 2.2 on pg. 9 "Wiring Specifications and Circuit Breaker Selection" to select a correct circuit breaker. Before wiring, be sure to disconnect the circuit breaker to prevent strong electric sparks and avoid battery short circuit; if the MNS Hybrid Inverter is used in an area with frequent lightning, it is recommended to install an external surge suppressors at the PV input terminal as well as the AC input and output. The MNSPD300DC is the correct model for the PV input and the MNSPD300AC for the AC input and output. Both sold separately 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 Step 5: Install the terminals cover. MN5048DIY User Manual Step 6: Turn on the MNS Hybrid Inverter First, close the circuit breaker at the battery terminal, and then turn the rocker switch on the left side of the machine to the "ON" position. The "AC/INV" indicator flashing indicates that the inverter is working normally. Close the circuit breakers of the PV array and the AC Mains. Finally, turn on AC loads one by one to avoid overcurrent caused by a large momentary load from turning on loads all at once. Now, the unit goes into normal operation. Note: If power is supplied to different AC loads, it is recommended to first turn on the load with a large surge current. 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 MN5048DIY User Manual 3. Operating modes 3.1 Charging mode 1) PV priority: PV module will charge the battery preferentially, and the battery is charged by the Mains only when the PV system fails. During the day, solar energy is fully used to charge, while at night, it renverts to the Mains. This can maintain battery level, and is ideal for areas where the grid is relatively stable and electricity price is relatively high. 2) Mains priority: The Mains supply is preferentially used to charge the battery. Only when the Mains are not available, the PV charging will be activated. 3) Hybrid charging: PV and mains hybrid charging. PV MPPT charging is a priority, and when PV energy is insufficient, the mains supply supplements. When the PV energy is sufficient again, the main s stop charging. This is the fastest charging mode, suitable for the areas where the power grid is unstable, providing sufficient backup power supply at any time. 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 MN5048DIY User Manual 3.2 Output mode PV priority mode: Loads are powered by the PV module and battery. Diversified charging mode and output mode are optional. When PV priority mode is selected, utilization of green solar energy can be maximized to achieve energy saving and emission reduction. Switch to mains supply when the PV charging is not available. This mode maximizes the use of solar energy while maintaining battery power, suitable for use in the areas with relatively stable grid. Mains priority mode: Switch to inverter only when the mains are not available . Then, the unit is equivalent to a backup UPS, suitable for areas with unstable grid. Inverter priority mode: Switch to mains supply only when the battery is under voltage. This mode maximizes the use of DC power and is best suited for areas with a stable grid. 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 MN5048DIY User Manual 4. LCD screen operating instructions 4.1 Operation and display panel The operation and display panel is as shown below, including 1 LCD screen, 3 indicators and 4 operation buttons. Operation buttons introduction Function buttons SET UP DOWN ENT Description Enter/Exit Settings menu Previous choice Next choice Confirm /Enter Options under the settings menu, Indicators introduction Indicators AC/INV Colors Yellow CHARGE FAULT Green Red Description Steady on : M ains output Flash: Inverter output Flash: Battery charging Steady on : Charging completed Steady on : Fault state 10-539-1 MN5048DIY REV - 19 of 39 LCD screen introduction MN5048DIY User Manual Icons Functions Indicates that the AC input terminal has been connected to the grid Indicates that the AC input mode in APL mode (wide voltage range) Indicates that the PV input terminal has been connected to the solar panel Indicates that the machine has been connected to the battery: indicates that the remaining battery is 0%~24% ; indicates that the remaining battery is 25%~49% ; indicates that the remaining battery is 50%~74% ; indicates that the remaining battery is 75%~100% . Indicates that the battery type of the machine is a lithium battery Icons Functions Indicates that the inverter circuit is working Indicates that the machine is in the Mains Bypass mode Indicates that the AC output is in an overload state Indicates the percentage of AC output loads: indicates that the load percentage is 0%~24% ; indicates that the load percentage is 25%~49%, indicates that the load percentage is 50%~74%, indicates that the load percentage is 75%. Indicates that the buzzer is not enabled 10-539-1 MN5048DIY REV - 20 of 39 MN5048DIY User Manual Indicates that the current battery type of the unit is a lead acid battery Indicates that the battery is in charging state Indicates that the AC/PV charging circuit is working Indicates that the AC output terminal has an AC voltage output Indicates that the unit has an alarm Indicates that the unit is in a fault condition Indicates that the unit is in setup mode The parameters displayed in the middle of the screen : 1. In the non -setup mode, the alarm or fault code is displayed. 2. In the set up mode, the currently set parameter item code is displayed. Parameters display on the left side of the screen: input parameters Indicates AC input Indicates PV input Indicates inverter circuit This icon is not displayed Display battery voltage, battery charge total current, mains charge power, AC input voltage, AC input frequency, PV input voltage, internal heatsink temperature, software version Parameters display on the right side of the screen: Output parameters Indicates output voltage, output current, output active power, output apparent power, battery discharge current, software version; in setup mode, displays the set parameters under the currently set parameter item code Arrow display The arrow is not displayed Indicates the grid is supplying power to the load Indicatesthe grid supplying power to the charging circuit Indicates PV module supplying power to the charging circuit Indicates the charging circuit charging the battery terminal The arrow is not display ed Indicates the battery terminal supplying power to the inverter circuit Indicates the inverter circuit supplying power to the load 10-539-1 MN5048DIY REV - 21 of 39 MN5048DIY User Manual Real -time data viewing method On the LCD main screen, press the " UP" and " DOWN " buttons to scroll through the real-time data of the machine. Page Parameters on the left side of the screen INPUT BATT V 1 (Battery input voltage ) PV TEMP 2 (PV charger heatsink temperature ) PV INPUT V 3 (PV input voltage ) INPUT BATT A 4 (Input battery current ) INPUT BATT KW 5 (Battery input power ) AC INPUT Hz 6 (AC input frequency ) AC INPUT V 7 (AC input voltage ) INPUT V 8 (For maintain ) INV TEMP 9 (AC charge or battery discharge heatsink temperature ) 10 APP software version 11 M odel PV Voltage Rating 12 Model Battery Voltage Rating Parameters in the middle of the screen Fault code Parameters on the right side of the screen OUTPUT LOAD V (Output load voltage ) PV OUTPUT KW (PV output power) PV OUTPUT A (PV output current ) OUTPUT BATT A (Battery output current) OUTPUT BATT KW (Battery output power ) AC OUTPUT LOAD Hz (AC output frequency ) AC OUTPUT LOAD A (AC output load current ) OUTPUT LOAD KVA (Load apparent power) INV OUTPUT LOAD KW (Load active power ) Bootloader software version Model PV Current Rating Model Output Power Rating 4.2 Setup parameters description Buttons operation instructions: Press the "SET" button to enter the setup menu and exit the setup menu. After entering the setup menu, the parameter number [00] will flash. At this point, press the "UP" and "DOWN" buttons to select the code of parameter item to be set. 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 MN5048DIY User Manual Parameter no. 00 01 02 03 04 05 Parameter name Exit setting menu Settings [00] ESC [01] SOL Output source priority [01] UTI default [01] SBU Output Frequency [02] 50.0 [02] 60.0 AC Input Voltage Range [03] APL [03] UPS default Battery Power to Utility Setpoint [04] 46.0 default Utility to Battery Power Setpoint [05] 56.0V default Description Exit the setup menu PV priority mode , switching to the Mains when the PV fails or the battery is lower than the set value of parameter [04]. Mains priority mode, switching to inverter only when the mains fail . Inverter priority mode, switching to the mains only when the battery is under voltage or lower than the set value of parameter [04]. Bypass self - adaptation; when the mains are connected, it automatically adapts to the mains frequency; when the mains iare disconnected, the output frequency can be set through this menu. The default output frequency of the 230V machine is 50HZ, and the 120V machine 60HZ. Wide mains input voltage range of 230V machine: 90~280V Mains input voltage range of 120V machine: 90~140V Narrow mains input voltage range of 230V machine: 170~280V Mains input voltage range of 120V machine: 90~140V When the parameter [01] =SOL/SBU, the battery voltage is lower than the set value, and the output is switched from the inverter to the mains. Setting range: 44V - 52V. When the parameter [01] =SOL/SBU, the battery voltage is higher than the set value, and the output is switched from the mains to the inverter. Setting range: 48V~60V. 10-539-1 MN5048DIY REV - 23 of 39 MN5048DIY User Manual Parameter no. 06 07 08 Parameter name Charger source priority Max charger current Battery Type Settings [06] CSO [06] CUB [06] SNU default [06] OSO [07] 60A default [08] USE [08] SLd [08] FLd [08] GEL default Description PV priority charging ; when not PV is unavailable, charging from the mains is started. M ains priority charging; When charging from the mains is not available PV charging is started. PV and Mains hybrid charging; PV charging is a priority, and when the PV energy is insufficient, the Mains charging supplements. When the PV energy is sufficient, the Mains charging stops. Note: Only when the Mains bypass output is loaded, the PV charging and the mains charging can work at the same time. When the inverter is in use, only the PV charging can be started. Only PV charging, with the Mains charging not activated. Max charger current (AC charger+PV charger). Setting range: 0~80A User- defined ; all battery parameters can be set. Sealed lead - acid battery ; absorption charge Voltage: 57.6V, float charge voltage: 55.2V Vented lead- acid battery; absorption charge voltage: 58.4V, float charge voltage: 55.2V Colloidal lead- acid battery; absorption charge voltage: 56.8V float charge voltage: 55.2V [08] LL14/L15/L16 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 The charging voltage is 56.8V, 53.2V, 49.6V, which are adjustable. 10-539-1 MN5048DIY REV - 24 of 39 MN5048DIY User Manual Parameter no. Parameter name Settings [08] N13/N14 Description Ternary lithium battery; which is adjustable. Battery Absorption Boost (absorb) charge voltage setting; the setting [09] 57.6`V 09 charge range is 48~58.4V with a step of 0.4V for default voltage user- defined battery and lithium battery. Boost (absorb) charge maximum time setting, which means the maximum charging time to reach the set voltage of parameter [09] during Battery Absorption 10 [10] 120 default constant-voltage charging. The setting range is charge time 5min~900min, with a step of 5 minutes. It is valid for user -defined battery and lithium battery. Battery Float charge voltage, setting range: float 11 [11] 55.2V 48V~58.4V at 0.4V step is valid in for charge default a user-defined battery. voltage Over -discharge voltage ; when the battery Battery over voltage drops to the set point, after the delay 12 discharge [12] 42V default time set by parameter [13] the inverter will voltage (delay stop inverting. Setting range is 48V - 58.4V with off) a step of 0.4V. It is valid for user - defined battery and lithium battery. Over-discharge delay time; when the battery voltage is lower than the parameter [12], the Battery over inverter output will be turned off after the time 13 discharge [13] 5S default set by this parameter is delayed. delay time The setting range is 5S~55S, with a step of 5S. It is valid for user-defined battery and lithium battery. Battery undervoltage alarm point ; when the battery voltage is lower than the point, an Battery under undervoltage alarm is given , and the output is 14 [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 MN5048DIY User Manual Parameter no. 15 16 17 18 19 20 21 22 23 Parameter name Battery discharge limit voltage Battery equalization enable Battery equalization voltage Battery equalized time Battery equalized time out Battery equalization interval Battery equalization immediately Power saving mode Restart when over load Settings [15] 40V default [16] DIS [16] ENA default [17] 58.4V default [18] 120 default [19] 120 default [20] 30 default [21] DIS [21] ENA default [22] DIS default [22] ENA [23] DIS Description Battery discharge limit voltage; when the battery voltage is lower than the point, the output is turned off immediately ; t he setting range is 40V~ 52V, with a step of 0.4V. It is valid for user - defined battery and lithium battery. Equalizing charge is disabled Equalizing charge is enabled, only valid for vented lead-acid battery and sealed lead- acid battery Equalizing charge voltage; setting range : 48V~ 58.4V, with a step of 0.4V; valid for vented lead - acid battery and sealed lead - acid battery Equalizing charge time ; setting range : 5min~900min, with a step of 5 minutes; valid for vented lead-acid battery and sealed lead acid battery Equalizing charge delay ; setting range : 5min~900min, with a step of 5 minutes ; valid for vented lead - acid battery and sealed lead acid battery Equalizing charge derating time, 0~30days, with a step of 1 day ; valid for vented lead -acid battery and sealed lead -acid battery Stop equalizing charge immediately. Start equalizing charge immediately. Power saving mode disabled . When the power saving mode is enabled, if there is no load or less than 50W , the inverter output is turned of f after a delay for a certain period of time. When the load is more than 50W, the inverter automatically restarts. Automatic restart when overload is disabled. If an overload occurs and the output is turned off, the unit will not restart . 10-539-1 MN5048DIY REV - 26 of 39 MN5048DIY User Manual Parameter no. 24 25 26 27 28 29 30 Parameter name Settings Restart when over temperature [24] DIS [24] ENA default Alarm enable Beeps while primary source is interrupted [25] DIS [25] ENA default [26] DIS [26] ENA default Bypass output when over load [27] DIS [27] ENA default Max AC charger current [28] 40A default Split Phase [29] DIS default [29] ENA Rs485 address setting [35] 1 default Description Auto matic restart when over temperature is disabled. If an over - temperature shutdown occurs, machine will not restart to turn the output on . Automatic restart when over temperature is enabled. If an over-temperature shutdown occurs, the mac hine will restart when the temperature drops. Alarm is disabled Alarm is enabled Alarm beep is disabled when the status of the main input source changes Alarm beep is enabled when the status of the main input source changes It is disabled to automatically switch to the Mains when the inverter is overloaded. It is enabled to aut omatically switch to the Mains when the inverter is overloaded. Max AC charger current. Setting range: 0~40A Supply for industrial frequency transformer (disabled ) Supply for industrial frequency transformer (enabled ) Rs485 communication address setting range 1 ~ 254, (refer to Number [32] is valid when set as SLA) Battery When the battery voltage is under voltage, the [35] 50.4V 35 undervoltage battery voltage needs to recover more than this default recovery point set value before the inverter starts the output Max PV charger 36 [36] 40A default Max PV charger current. Setting range: 0~40A current Battery fully After the battery is fully charged, it needs to be 37 charged [37] 52V default lower than this set voltage before it can be recovery point recharged 10-539-1 MN5048DIY REV - 27 of 39 MN5048DIY User Manual 4.3 Battery type parameters For Lead - acid Battery : Battery type Parameters Overvoltage disconnection voltage Sealed lead acid battery (SLD) 60V Equalizing charge voltage 58.4V Colloidal lead acid battery (GEL) 60V 56.8V Absorption charge voltage 57.6V 56.8V Float charge voltage 55.2V 55.2V Undervoltage alarm voltage Low voltage disconnection voltage Discharge limit voltage 44V 42V 40V 44V 42V 40V Over - discharge delay time 5s 5s Equalizing charge duration 120 minutes - Equalizing charge interval 30 days - Absorption charge duration 120 minutes 120 minutes Vented lead acid battery (FLD) 60V 59.2V 58.4V 55.2V 44V 42V 40V 5s 120 minutes 30 days 120 minutes User - defined (User) 3660V 3660V 3660V (Adjustable) 3660V (Adjustable) 3660V (Adjustable) 3660V (Adjustable) 3660V (Adjustable) 130s (Adjustable) 0600 minutes (Adjustable) 0250 days (Adjustable) 10600 minutes (Adjustable) 10-539-1 MN5048DIY REV - 28 of 39 MN5048DIY User Manual For Lithium Battery : Battery type Parameters Ternary lithium battery (N 13 ) Overvoltage disconnection voltage 60V Absorption charge 53.2V voltage (Adjustable) Floating charge voltage 53.2V (Adjustable) Undervoltage alarm voltage 43.6V (Adjustable) Low voltage disconnection voltage 38.8V (Adjus table) Discharge limit voltage 36.4V Over discharge delay time Absorption charge duration 30s (Adjustable) 120 minutes (Adjustable) Ternary lithium battery (N 14 ) 60V 57.6V (Adjustable) 57.6V (Adjustable) 46.8V (Adjustable) 42V (Adjustable) 39.2V 30s (Adjustable) 120 minutes (Adjustable) Lithium iron phosphate battery (LF16 ) 60V 56.8V (Adjustable) 56.8V (Adju stable) 49.6V (Adjustable) 48.8V (Adjustable) 46.4V 30s (Adjustable) 120 minu tes (Adjustable) Lithium iron phosphate battery (LF15 ) Lithium iron phosphate battery (LF14) User defined (User) 60V 60V 3660V 53.2V (Adjustable) 49.2V (Adjustable) 3660V (Adjustable) 53.2V (Adjustable) 49.2 (Adjustable) 3660V (Adjustable) 46.4V (Adjustable) 43.2V (Adjustable) 3660V (Adjustable) 45.6V (Adjustable) 42V (Adjustable) 3660V (Adjustable) 43.6V 40.8V 3660V (Adjustable) 30s (Adjustable) 120 minutes (Adjustable) 30s (Adjustable) 120 minutes (Adjustable) 130s (Adjustable) 10600 minutes (Adjustable) 10-539-1 MN5048DIY REV - 29 of 39 MN5048DIY User Manual 5. Other functions 5.1 Dry contact Working principle: This dry contact can start and stop the generator to charge the battery. Normally, the terminals are that the NC-N point is closed and the NO - N point is open; When the battery voltage reaches the low voltage disconnection point, the relay coil is energized, and the terminals turn to that the NO - N point is closed while NC - N point is open. At this point, NO-N point can drive resistive loads: 125VAC/1A, 230VAC/1A, 30VDC/1A. Normally Closed Common Normally Open 5.2 USB communication port This is a USB communication port, which can be used for USB communication with the optional PC host software . To use this port, you should install the corresponding "USB to serial chip CH340T driver" and APP in the computer. 5.2 RS485 communication function There are two communication ports RS485-1 and RS485-2 and also two functions: RS485 communication with lithium battery BMS can be conducted directly through this port RS485-2 (need to be customized); RS485-1 is connected to the selected RS485 to WiFi /GPRS communication module independently developed by our company After the selected module is equipped, the reverse control all-in-one machine of our company can be connected through mobile APP, and the operating parameters and status of the reverse control all-in-one machine can be checked through the mobile APP. 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 MN5048DIY User Manual 6. Protection 6.1 Protections provided No. Protections Description PV current /power 1 limiting protection PV night reverse - 2 current protection When charging current or power of the PV array configured exceeds the PV rating, it will charge at the rated value. At night, current is prevented from flowing back into the panels. Mains input over 3 voltage protection Mains input under 4 voltage protection Battery over 5 voltage protection When the mains voltage exceeds 280V (230V model) or 140V (120V model), the mains charging will stop and the unit will switch to inverter mode. When the mains voltage is lower than 170V (230V model /UPS mode ) or 90V (120V model or APL mode ), the mains charging will stop and the unit will switch to inverter mode. When the battery voltage reaches the overvoltage disconnection point, the PV and the mains will automatically stop charging the battery to prevent damage to the battery from overcharging. Battery low voltage 6 protection When the battery voltage reaches the low voltage threshold, the unit will stop inverting to prevent damage to the batteries from being over discharged. Load output short 7 circuit protection Heat sink over 8 temperature protection Overload 9 protection When a short- circuit fault occurs at the load output terminal , the AC output is immediately turned off and turned on again after 1 second . When the internal temperature is too high, the unit will stop charging and discharging; when the temperature returns to normal, charging and discharging will resume. When an overload occurs, the unit will immediately stop the AC output. The unit will try again after three minutes. After five tries, the unit won't try again until the unit is powered down and restarted. Refer to the technical parameters table for information on settings. 10-539-1 MN5048DIY REV - 31 of 39 MN5048DIY User Manual PV reverse polarity 10 protection When the PV polarity is reversed, the unit will not be damaged. AC reverse 11 protection Prevents the inverter output from backfeeding into the AC input. 10-539-1 MN5048DIY REV - 32 of 39 6.2 Fault code meaning Fault code 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 17 19 20 21 22 23 26 29 Fault name BatVoltLow BatOverCurrSw BatOpen BatLowEod BatOv erCurrHw BatOverVolt BusOverVoltHw BusOverVoltSw PvVoltHigh PvBuckOCSw PvBuckOCHw bLineLoss OverloadBypass OverloadInverter AcOverCurrHw InvShort OverTemperMppt OverTemperInv FanFail EEPROM ModelNumErr RlyShort BusVoltLow MN5048DIY User Manual Output Affected? Description Yes Battery undervoltage alarm Battery discharge average current Yes overcurrent software protection Yes Battery not -connected alarm Yes Battery undervoltage stop discharge alarm Yes Battery overcurrent hardware protection Yes Charging overvoltage protection Yes Bus overvoltage hardware protection Yes Bus overvoltage software protection No PV over voltage protection No Buck overcurrent software protection No Buck overcurrent hardware protection No Mains power down Yes Bypass overload protection Yes Inverter o verload protection Yes Inverter overcurrent hardware protection Yes Inverter short circuit protection No Buck heatsink over temperature protection Yes Inverter heatsink over temperature protection Yes Fan failure Yes Memory failure Yes Model setting error Inverted AC Output Backfeed to Bypass AC Yes Input Yes Bus Undervoltage Protection 10-539-1 MN5048DIY REV - 33 of 39 6.3 Troubleshooting MN5048DIY User Manual Faults No display on the screen Battery overvoltage protection Battery undervoltage protection Fan failure Heat sink over temperature protection Handling measures Check if the battery circuit breaker or the PV circuit breaker are closed; if the switch is in the "ON" state; press any button on the screen to exit the screen sleep mode. Measure if the battery voltage exceeds rating, and turn off the PV array and Mains circuit breakers. Charge the battery until it returns to the low voltage disconnect ion recovery voltage. Check if the fan is not turning or blocked by foreign objects. When the temperature of the device is cooled below the recovery temperature, normal charge and discharge control will resume. Bypass overload pro tection, inverter overload protection Reduce the use of power equipment; Restart the unit to resume load output. Inverter short circuit protection PV overvoltage Battery missing alarm Check the load connection carefully and clear any short circuit faults. Re- power up to resume load output. Use a multimeter to check if the PV input voltage exceeds the maximum allowable input voltage rated . Check if the battery is not connected or if the battery circuit breaker is not closed. 10-539-1 MN5048DIY REV - 34 of 39 MN5048DIY User Manual 7. System maintenance In order to maintain the best long - term performance, it is recommended to conduct the following checks twice a year. 1. Make sure that the airflow around the unit is not blocked and remove any dirt or debris from the heat sink. 2. Check that all exposed wires are not damaged by exposure to sunlight, friction with other objects around them, dryness, damage by insects or rodents, etc., repair or replace if necessary. 3. Verify the consistency of indication and display with the operation of the device. Please pay attention to the display of any faults or errors, and take corrective actions as necessary. 4. Check all wiring terminals for corrosion, insulation damage, signs of high temperature or burning/discoloration, and tighten the screws. 5. Check for dirt, nesting insects and corrosion, and clean up as required. 6. If the surge suppressor has failed, replace in time to prevent lightning damage to the unit or other equipment. Warning: Danger of electric shock! When doing the above operations, make sure that all power supplies of the unit have been disconnected, and all capacitors have been discharged, and then then check or operate accordingly! MidNite Solar AKA MNS does not assume any liability for damage caused by: Improper use or improper installation, or location. (exposed to the elements) Open circuit voltage of the PV module exceeds the maximum allowable input voltage rating. Temperature in the operating environment exceeds the limited operating temperature range. Disassemble and repair of the MNS Hybrid Inverter without permission. Force majeure: Damage that occurs in transportation or handling of the MNS Hybrid Inverter. 10-539-1 MN5048DIY REV - 35 of 39 MN5048DIY User Manual 8.Technical Parameter Model AC mode Rated input voltage Input voltage range Frequency MN5048DIY 110/120Vac ( 9 0 Va c - 1 4 0 Va c ) 50Hz/ 60Hz (auto-sensing) Frequency range Overload/shortcircuit protection Efficiency CFroenqvueernsicoynratinmgee (Bypass and inverting) AC reverse flowing protection Maximum bypass overload current Inverting mode Output voltage waveform Rated output power(VA) Rated output power(W) Power factor Rated output voltage(Vac) Output voltage error Output frequency range(Hz) Efficiency Overload protection 47±0.3Hz~55±0.3Hz(50Hz); 57±0.3Hz~65±0.3Hz(60Hz); Breaker >95% 10ms(Typicalvalue) yes 63A Pure sine wave 5000(4100/ 4300/4500) 5000(4100/ 4300/4500) 1 120Vac(100/105/110Vac Settable) ±5% 50Hz±0.3Hz 60Hz±0.3Hz >90% (102%<load<110%) ±10%: reporting error and turn off the output after 5 minutes; (110%<load<125%) ±10%: reporting 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 MN5048DIY User Manual Peak power Loaded motor capacity Output shortcircuit protection Specification of bypass breaker Rated battery input voltage Battery voltage range Power saving mode AC charge BF raet tqeurey nt ycpy er a n g e Maximum charge current Charge current error Charge voltage range Breaker specification Overcharge protection Solar charge Maximum PV open -circuit voltage PV operation voltage range MPPT voltage range Battery voltage range Maximum output power Charge current range of solar energy(settable) Charge shortcircuit protection Wiring protection 10000VA 4HP Breaker 63A 48V (minimum start voltage 44V) 40.0Vdc~60Vdc ±0.6Vdc (undervoltage alarm/turnoff voltage/overvoltage alarm/overvoltage restoration...settable LCDscreen) Load 50W Lead acid or lithium battery 40A ±5Adc 4060Vdc 63A Turn off charge after 1min alarm 500Vdc 120-500Vdc 120-450Vdc 40-60Vdc 5000W 0-80A Blown fuse Inverse wiring protection 10-539-1 MN5048DIY REV - 37 of 39 MN5048DIY User Manual Authentication specification Specification authentication EMC authentication grade Operation temperaturerange Storage temperaturerange CE(IEC62109)RoHs En61000 -15°Cto55°C -25°C~60°C Humidity range 5% to 95% (three-proof paint protection) Noise 60dB Thermal dissipation Communication interface Forced cooling with adjustable air speed USB/RS485(WiFi/GPRS)/dry node control Dimension(L*W*D) 426mm*322mm*126mm Weight(kg) 11.6 10-539-1 MN5048DIY REV - 38 of 39 MN5048DIY User Manual MIDNITE SOLAR INC. LIMITED WARRANTY MidNite Solar DIY inverters, DIY sheet metal enclosures, DIY breaker boxes and DIY accessories MidNite Solar Inc. warrants to the original customer that its products shall be free from defects in materials and workmanship. This warranty will be valid for a period of ONE (1) year for all DIY series inverters, DIY sheet metal enclosures, 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 any other causes unrelated to materials and workmanship. The original consumer purchaser must retain original purchase receipt for proof of purchase as a condition precedent to warranty coverage. To receive inwarranty service, the defective product must be received no later than two (2) weeks after the end of the warranty period. The product must be accompanied by proof of purchase and Return Authorization (RA) number issue d by MidNite Solar. For an RMA number contact MidNite Solar Inc., (360) 403-7207. Purchasers must prepay all delivery costs or shipping charges to return any defective MidNite Solar product under this warranty policy. Except for the warranty that the products are made in accordance with, the specifications therefore supplied or agreed to by customer: MIDNITE SOLAR MAKES NO WARRANTY EXPRESSED OR IMPLIED, AND ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEEDS THE FOREGOING WARRANTY IS HEREBY DISCLAIMED BY MIDNITE SOLAR AND EXCLUDED FROM ANY AGREEMENT MADE BY ACCEPTANCE OF ANY ORDER PURSUANT TO THIS QUOTATION. MIDNITE SOLAR WILL NOT BE LIABLE FO R ANY CONSEQUENTIAL DAMAGES, LOSS OR EXPENSE ARISING IN CONNECTION WITH THE USE OF OR THE INABILITY TO USE ITS GOODS FOR ANY PURPOSE WHATSOEVER. MIDNITE SOLAR'S MAXIMUM LIABILITY SHALL NOT IN ANY CASE EXCEED THE CONTRACT PRICE FOR THE GOODS CLAIMED TO BE DEFECTIVE OR UNSUITABLE. Products will be considered accepted by customer unless written notice to the contrary is given to MidNite Solar within ten (10) days of such delivery to customer. MIDNITE SOLAR is not responsible for loss or damage to products owned by customer and located on MIDNITE SOLAR'S premises caused by fire or other casualties beyond MIDNITE SOLAR's control. This warranty is in lieu of all other warranties expressed or implied. 10-539-1 MN5048DIY REV - MIDNITE SOLAR INC. Email: info@midnitesolar.com PH: 360-403-7207 FAX: 360-691-6862 39 of 39Corel PDF Engine Version 22.1.1.523 CorelDRAW 2020