SOLARMG SG-25KWHBT User Manual
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SOLARMG SG-25KWHBT User Manual

Hybrid inverter
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REV.1 – Preliminary
S.MG-UM:SG 25-50KWHBT
SOLARMG HYBRID INVERTER
SG- 2 5 / 3 0 / 3 6 / 4 0 / 5 0 KWHB
User Manual

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Summary of Contents for SOLARMG SG-25KWHBT

  • Page 1 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT SOLARMG HYBRID INVERTER SG- 2 5 / 3 0 / 3 6 / 4 0 / 5 0 KWHB User Manual...
  • Page 2 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT...

  • Page 3: Table Of Contents

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT About This Manual ……………………………………… 1.1 How To Use This Manual ………………………………………………………… 5 1.2 Target Groups …………………………………………………………………… 5 1.3 Symbols …………………………………………………………………………… 5 Safety Instructions ……………………………………… 2.1 Safety Notes ……………………………………………………………………… 7 2.2 Statement ………………………………………………………………………… 7 Product Description ……………………………………… 3.1 System Introduction ……………………………………………………………...
  • Page 4 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 7.3 Advanced Setting …………………………………………………………… 63 7.4 Country Code (Safety Code) Setting ……………………………………… 66 7.5 Auto-Test ……………………………………………………………………… 66 7.6 Reactive Power ………………………………………………………………… 68 Monitoring ………………………………………………… 8.1 Monitoring Device …………………………………………………………… 71 8.2 Cloud monitoring App ………………………………………………………… 72 8.3 Local configuration App ………………………………………………………...

  • Page 5: About This Manual

    The products, services or features purchased are subject to the commercial contracts and terms of SOLARMG. All or part of the products, services or features described in this document may not be within the scope of purchase. This document serves only as a guide to use, and all statements, information and recommendations in this document do not constitute any express or implied guarantee.
  • Page 6 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Indicates a hazard with a low level of risk that, if not avoided, could result in minor or moderate injury. CAUTION Indicates a situation that, if not avoided, could result in equipment or property damage, data loss, equipment performance degradation.

  • Page 7: Safety Instructions

    ⑨ When wiring the lithium battery terminals, please disconnect the breaker or switch of the lithium battery in case of a physical injury caused by the high voltage. 2.2 Statement SOLARMG has the right not to undertake quality assurance in any of the following circumstances: ① Damages caused by improper transportation.
  • Page 8 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series ⑦ Damages caused by unauthorized disassembly, alteration of products or modification of software codes. ⑧ Damages caused by abnormal natural environment (force majeure, such as lightning, earthquake, fire, storm, etc.). ⑨ Any damages caused by the process of installation and operation which don't follow the local standards and regulations.

  • Page 9: Product Description

    It cannot guarantee backup power in all circumstances. NOTICE The applicable grid types for the SOLARMG SG-25~50KWHBT series are TN-S, TN-C, TN-C- S and TT. When applied to the TT grid, the voltage of N to PE suggests less than 30V.

  • Page 10: Product Introduction

    SG-25~50KWHBT series 3.2 Product Introduction The SOLARMG SG-25~50KWHBT series inverter is also known as hybrid inverter or storage in-verter, which is mainly used to combine the PV array, lithium battery, loads and power grid to realize intelligent power management and dispatching.
  • Page 11 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 3.2.3 Indicator Figure 3-4 Inverter display interface Item Indicator Status Description No power . Quick flashing Inverter entered self-test status. Blue Slow flashing Inverter entered waiting status. Power and Breathe flashing Inverter works normal.

  • Page 12: Symbols On The Inverter

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 3.3 Symbols On the Inverter Symbol Description To avoid the potential effects on the environment and human health as a result of the presence of hazardous substances in electrical and electronic equipment, end-users of electrical and electronic equipment should understand the meaning of the crossed-out wheeled bin symbol.

  • Page 13: Operation Modes

    S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 3.4 Operation Modes SOLARMG Hybrid inverter has the following basic operation modes and you can config- ure the operation mode as per your preference in the App. General Mode Loads In this working mode, when the power from the PV array is sufficient, PV power will supply the loads, battery, and grid in the order of ...
  • Page 14 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Peak load Shifting (Load Shifting) Loads Set the maximum power Pmax (kVA) contracted with the grid. When the load consumption is less than the Pmax, the PV will charge the battery first, and the grid supplies the load.
  • Page 15 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series UPS Mode Loads In this working mode, the inverter will use the power from PV or grid to charge the battery until it is fully charged, and as long as the grid is there, the battery won’t discharge.
  • Page 16 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Economic Mode Loads In this working mode, you can set charge/dis- charge power and time in the App, inverter will use the power from PV or grid (whether to use can be set in the App) to charge the battery in the predetermined period.
  • Page 17 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Off-grid Mode Back-up Loads In the purely off-grid mode, power from PV will supply the back-up loads first and then charge the battery if there's surplus power. No Grid Back-up Load When the power from PV isn’t enough, the battery will discharge to supply back-up loads together with PV.

  • Page 18: Back-Up And Off-Grid Output

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 3.5 Back-Up and Off-Grid Output Normally, the Back-Up switching time is less than 10ms. However, some external factors may cause the system to fail on switching to Back-Up mode. Therefore, the conditions for using the Back-Up function smoothly are as follows for your awareness. ①...

  • Page 19: Unpacking And Storage

    For this reason, please conduct a thorough inspection after receiving the device. Contact SOLARMG or the transport company in case of any damage or incompleteness, and provide photos to facilitate services. 3.6.1 Packing List The package of the inverter includes the following accessories.
  • Page 20 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series User Manual Figure 3-5 Packing list Item Name and Quantity Inverter (1pcs) Inverter bracket (1pcs), Bolt assembly (4pcs), M6 screws (2pcs) AC connector set (3 pcs) PV terminal (SG-25~50K 8 pairs ) Battery terminal (1 pairs) Meter with 3 CTs (1pcs) COM2 connector set (1pcs)

  • Page 21: Installation

    SG-25~50KWHBT series Installation 4.1 Location The SOLARMG SG-25~50KWHBT series inverters are designed with IP65 protection enclosure for indoor and outdoor installations. When selecting an inverter installation location, the follow-ing factors should be considered: · The wall on which the inverters mounted must be able to withstand the weight of the in- verter.
  • Page 22 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 4.1.2 Installation Spacing Reserve enough clearance around the inverter to ensure sufficient space for heat dissipation. ≥300mm ≥600mm ≥600mm ≥450mm Figure 4-2A Spacing for installing an inverter In case of multiple inverters, reserve specific clearance between the inverters. ≥600mm ≥600mm ≥600mm...

  • Page 23: Mounting The Inverter

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 4.1.3 Installation Angle Install the inverter vertically. Never install the inverter horizontally, or at forward/backward tilted, or upside down. Figure 4-3 Permitted and prohibited mounting positions 4.2 Mounting the Inverter 4.2.1 Bracket Installation Dimensions of wall bracket (mm) 4- 12 Figure 4-4 Dimensions of bracket ①...
  • Page 24 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Figure 4-5 Marking hole position using installation bracket ② Secure the inverter-bracket with bolts. Figure 4-6 Fixing the bracket 4.2.2 Mounting the Inverter Lift the inverter, hang the back rail on the fixed bracket carefully. Secure the inverter with M6 screws(two sides).
  • Page 25 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 4.2.3 External Ground Connection Connect the inverter and ground bar through PE wire to achieve the purpose of grounding protection. Please always remember wiring the PE wire before wiring other wires. Do not connect the N-wire as a protective ground wire to the inverter casing.

  • Page 26: Electrical Connection

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Electrical Connection A high voltage in the conductive part of the inverter may cause an electric shock. When installing the inverter, make sure that the AC and DANGER DC sides of the inverter are completely de-energized. Do not connect the N-wire as a protective ground wire to the inverter casing.

  • Page 27: Electrical Wiring Diagram

    AC Breaker Figure 5-1 Electrical wiring diagram *SOLARMG Smart Meter consists of ACR10R and RMM. Define the cable connections for the meter based on the actual meter model and refer to Section 5.4. This cable diagram is for reference only.
  • Page 28 9(L3-S1) 10(L3-S2) Figure 5-2 Standard wiring diagram *SOLARMG Smart Meter consists of ACR10R and RMM. Define the cable connections for the meter based on the actual meter model and refer to Section 5.4. This cable diagram is for reference only.
  • Page 29 9(L3-S1) 10(L3-S2) Figure 5-3 Australia wiring diagram *SOLARMG Smart Meter consists of ACR10R and RMM. Define the cable connections for the meter based on the actual meter model and refer to Section 5.4. This cable diagram is for reference only.

  • Page 30: Ac Connection

    Max. input (output) current of SG-25~50KWHBT AC side. The allowable AC cable of wire diameter and cross-sectional area for SOLARMG SG-25~50KWHBT are as shown in the following:...
  • Page 31 However if an external residual current device (RCD) (type A is recommended) is manda- tory, the switch must be triggered at the residual current. RCD of other specifications can also be used according to local standard. The recommended residual current is as follows. Inverter Recommended residual current SG-25KWHBT 300mA SG-30KWHBT SG-36KWHBT 360mA...
  • Page 32 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series The AC terminal block is on the bottom side of the inverter. ① Seal accessory option. The recommended outer diameter of the cable is 20-24 mm and 24.5~30mm. If the outer diameter of the cable is greater than 24mm, remove part 1. Part 2 Part 1 Figure 5-5...
  • Page 33 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series The cord end terminals must be locked tightly, and make sure it won’t be loose after a long period of use. WARNING Figure 5-8A ⑤ Insert the main body into the rubber core and hear the "click" sound, then tighten the nut with an open-ended wrench (torque 10.0±0.1N·m) and complete the installation with a "click, click, click".

  • Page 34: Monitoring Device Installation

    CAUTION 5.3 Monitoring Device Installation SOLARMG SG-25~50KWHBT series hybrid inverter supports WIFI, LAN, and 4G communication. Plug the WIFI, LAN, or 4G module into the COM1 port in the bottom of inverter. A slight "click" sound during the installation represents that the assembly is in place.

  • Page 35: Meter And Ct Connection

    The Meter can be installed in the AC combiner box or other places that are unable to be touched by children. SOLARMG CT cable with length of 2m, it’s fixed and can’t be extended. The CTs have been connected to the Meter when you received them, and you just need to follow the wiring diagram in the Meter to connect CT.

  • Page 36: Communication Connection

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Meter terminals definition as shown in table below: Definition Function ACR10R L1/L2/L3/N connect to grid to detect power grid voltage L1-S1 L1-S2 L2-S1 L2-S2 To detect the CT current and direction L3-S1 L3-S2 Ground connection...
  • Page 37 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Definition Function METER （ RJ45-1 ） RS 485 Communicate with Meter BMS （ RJ45-1 ） Communicate with BMS DO-1 (Multifunction Relay) NO (Normally Open) Reserved Reserved DRM4/8 DRM3/7 DRM2/6 DRED For Australia and New Zealand DRM1/5 COM D/0 REF D/0...
  • Page 38 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Function Definition Reserved DO-2 (Multifunction Relay) 9-10 Reserved DO-3 (Multifunction Relay) 13-16 Reserved 4-20mA_OUT 4-20mA analog output 0-10V analog output 0-10V_OUT 5.5.1 Assembling the Multi-com Connector ① Unscrew the swivel nut from the connector. COM2 COM3 Figure 5-13...
  • Page 39 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual ② Take out the terminal block. Press COM2 COM3 Figure 5-14 ③ Remove the seal and lead the cable through the cable gland. COM2 COM3 Figure 5-15...
  • Page 40 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 5.5.2 Connect the Meter and BMS Communication Cables The communication between meter/BMS and inverter is RJ45 interface cable. NOTE ① Thread the RJ45 plug of appropriate length through the swivel nut, and insert it into the open side of the rubber gasket.
  • Page 41 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual 5.5.3 Connect Other Cables ① Thread the cable of appropriate length through the swivel nut and the housing. Remove the cable jacket and strip the wire insulation. Wire Diameter r 4-6.5mm Wire Diamete e Diameter r 13~18mm 13~18mm Cross-sectional Area...
  • Page 42 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Figure 5-19 ③ Fix all the wires to the terminal plug according to the assignment and tighten to a torque of 1.2+/-0.1N·m with a screwdriver. COM2 COM3 Figure 5-20 ④ Pull the wires outward to check whether they are firmly installed. Insert the terminal block into the connector until it snaps into place with an audible click.
  • Page 43 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual ⑤ Fasten the swivel nut. ・m 2.5+/-0.1N·m COM2 COM3 Figure 5-22 5.5.4 Installing the COM Connector ① Remove the waterproof lid from the COM terminal. ② Insert the COM connector into COM terminal on the bottom of the inverter until there is an audible click.
  • Page 44 SG-25~50KWHBT series 5.5.5 Meter and BMS Communication Before purchasing the battery, you need to make sure the battery you selected is in the battery approval list of SOLARMG, otherwise, the system may not work properly. Please contact your installer or NOTE SOLARMG service team for confirmation if you’re not sure about it.
  • Page 45 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series DRED wiring diagram (hybrid inverter) as below: Figure 5-25 DRED mode as shown in table below: Mode Function DRM 0 Operate the disconnection device DRM 1 Do not consume power DRM 2 Do not consume at more than 50% of rated power DRM 3 Do not consume at more than 75% of rated power and source reactive power if capable...
  • Page 46 SG-25~50KWHBT series RCR (Ripple Control Receiver) interface is special reserved for Germany and some other Eu-ropean country according to their safety regulation, and SOLARMG doesn’t provide the RCR device for the customer. In Germany and some European areas, a ripple control receiver is used to convert a power grid dispatching signal to a dry contact signal.
  • Page 47 Maximum voltage and current at DO dry contact port: 230VAC 1A/ 30VDC 1A. NOTICE For more installation and setup information, please contact SOLARMG. NOTE Load Control Breaker Contactor...
  • Page 48 The AC contactor should be placed between the inverter and the loads. Do not connect the load to DO port directly. The contactor is not supplied by the SOLARMG. Connect the load to the DO port of the inverter directly if the load is designed with a DI port.
  • Page 49 The on-grid and back-up side cannot be The back-up side cannot be connected on- connected to and generator directly. grid side or grid. For advanced applications, please contact our after-sales department. Figure 5-27 For more installation and setup information about parallel system, please contact SOLARMG NOTE...

  • Page 50: Pv String Connection

    SG-25~50KWHBT series 5.5.10 Fast stop SOLARMG SG-25~50KWHBT hybrid inverter comes standard with fast stop function, and you can use this function by connecting an external switch into the fast stop interface if it requires in the installation place. The external switch doesn't include in our accessory box.
  • Page 51 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual 5.6.1 PV Side Requirements System Layout of Units with external DC Switch · Local standards or codes may require PV systems that fit with an external DC switch on the DC side. The DC switch must be able to safely disconnect the open-circuit voltage of the PV array plus a safety reserve of 20%.
  • Page 52 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series ① Peel off the DC cable insulation sleeve for 7 mm. Figure 5-30 ② Disassemble the connector in the accessory bag. Figure 5-31 ③ Insert the DC cable through the DC connector nut into the metal terminal and press the terminal with a professional crimping plier (pull back the cable with some power to check if the terminal is well connected to the cable).
  • Page 53 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual Open-end Wrench Figure 5-33 5.6.3 Installing the PV Connector ① Rotate the DC switch to “OFF” position. Figure 5-34 ② Check the cable connection of the PV string for polarity correctness and ensure that the open circuit voltage in any case does not exceed the inverter input limit of 1,000V, PV Max.
  • Page 54 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series ③ Insert the positive and negative connectors into the inverter DC input terminals respec- tively, a click sound should be heard if the terminals are well connected. Figure 5-36 ④ Seal the unused PV terminals with the terminal caps.

  • Page 55: Power Cable Of The Battery Connection

    If the conductor core of the battery cable is too small, which may cause poor contact between the terminal and the cable, please use the cable specified in the above table, or contact SOLARMG to purchase CAUTION terminals of other specifications.
  • Page 56 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series ② Disassemble the connector in the accessory bag, Thread the cable into end cap, grom- met, and cable gland in turn. Cable gland Grommet End cap Figure 5-38 ③ Insert the battery cable through into the metal terminal and press the terminal with a professional crimping plier (pull back the cable with some power to check if the terminal is well connected to the cable).
  • Page 57 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual ① Before making the battery connector, please make sure the polarity of the cable is correct. ② Use a multimeter to measure the voltage of the battery pack and make WARNING sure the voltage is within the inverter limitation and the polarity is correct. ⑤...

  • Page 58: Commissioning

    "8.2 Cloud monitoring App and 8.3 Local configuration App". · Register an account on the Cloud monitoring App. If you have got the account and password from the distributor/installer or SOLARMG, skip this step. 6.2 Inspection Before Commissioning Check the following items before starting the inverter: ·...

  • Page 59: Stop The Inverter

    ② Select the battery ID suitable for the battery is installed. CT AUTO TEST FUNCTION SOLARMG hybrid inverter has the function of detecting the installation direction and phase sequence of CT. The system is installed, NOTE this function can be enabled on the APP for detection.

  • Page 60: Screen Operation

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Operation When the inverter is turned on, the following interfaces will be displayed on the OLED display, and the OLED display allows the user to check various operation information and to modify the settings of the inverter. If the parameter is a number short press to change the number, long press to confirm the number and jump to the next number.

  • Page 61: General Setting

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual 7.2 General Setting General Settings FM Version V1.xx.xx.xx.xx Check code System Info V1.00 xxxxxxxxxxxxxxx V1.xx.xx.xx.xx xxxxxx 2022-05-30 10:05:05 2022-05-30 10:05:05 2022-05-30 10:05:05 Fault Info Fault 1 Fault 2 Fault N RSSI <General> <General> <General>...
  • Page 62 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Inverter Display Abbreviation and Complete Name Reference Table Abbreviation Complete Name System Info System information FM Version Firmware version Series number Fault Info Fault information RSSI Received signal strength indicator DHCP Set Enable or disable DHCP functionality IP Addr If DHCP is turned off, set the static IP address...

  • Page 63: Advanced Setting

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual 7.3 Advanced Setting Advanced InPut Password Wait 1000 Settings Incorrect Verify Fail Wait Correct Verify OK <Advanced> <Advanced> <Advanced> <Advanced> The last page Safety Set Safety Set Safety Set Safety Set Safety Code 1S afety Code 2S afety Code N 50Hz Default...
  • Page 64 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Previous Page <Advanced> <Advanced> <Advanced> OnGrid SOCProt OnGrid SOCProt OnGrid SOCProt <Advanced> <Advanced> OnGrid EndSOC OnGrid EndSOC 3 3 0 0 <Advanced> <Advanced> <Advanced> <Advanced> <Advanced> <Advanced> <Advanced> <Advanced> Unbalan.Output Unbalan.Output Unbalan.Output <Advanced>...
  • Page 65 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Inverter Display Abbreviation and Complete Name Reference Table Abbreviation Complete Name Safety Set Select the code that meet local regulatory requirements Battery_ID Set Select the battery model Work Mode Current work mode / work mode setting Export Limit On-grid export limit function switch Feed in Grid...

  • Page 66: Country Code (Safety Code) Setting

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Abbreviation Complete Name System Maint. System maintenance, includes inverter stop and run, system restart In the multi-inverter parallel system, set the role of one inverter as the master and the Multi-INV Role other inverter as the slave.
  • Page 67 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Connect the AC cable, auto test will start after the inverter connected to the grid, see the operation steps below: Previous Page <Advanced> <Advanced> If Tested Auto Test Auto Test Wait CEI 0- 21 Record Wait...

  • Page 68: Reactive Power

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 7.6 Reactive Power The inverter provides a reactive power regulation function. Requirement Design freedom area 1,0 S in some countries 0,1 S +0,6 P -0,6 P Absorption of reactive energy Provision of reactive energy (under-excited) (over-excited) Figure 7-1 Capabilities...
  • Page 69 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 7.6.3 “Qt” Mode In the Qt mode, system rated reactive power is fixed, and the system injects reactive power according to the delivered reactive power ratio. The setting range of the reactive power ratio is 0~60% or 0~-60%, corresponding to the ranges of inductive and capacitive reactive power regulation respectively.
  • Page 70 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series 7.6.5 “Q(U)” Mode The reactive power output of the inverter will vary in response to the grid voltage. “Q(U)” Mode Parameter Descriptions: Parameter Explanation Range Hysteresis Ratio Voltage hysteresis ratio on the Q(U) mode curve 0 ~ 5% QU_V1 Grid voltage limit at P1 on the Q(U) mode curve...

  • Page 71: Monitoring

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual Monitoring 8.1 Monitoring Device Indicator Button Figure 8-1 Monitoring device display interface Indicator Status Description Connection abnormal Always On Communicate with the server normally The monitoring device is not connected to the router or is not connected to the base Slow flashing station.

  • Page 72: Cloud Monitoring App

    8.2 Cloud monitoring App SOLARMG inverter provides a monitoring port that can collect and transmit data from the inverter to SOLARMG monitoring platform via an external monitoring device. Please refer to the product nameplate on side of enclosure to get the monitoring application. If download issues exist, contact your dealer or SOLARMG technical support.

  • Page 73: Troubleshooting

    Troubleshooting 9.1 Error Message SOLARMG SG-25~50KWHBT series hybrid inverter is designed in accordance with grid operation standards, and conform to the requirements of safety and EMC. The inverter had passed a series of rigorous tests to ensure it runs sustainably and reliably before shipment.
  • Page 74 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Error Message Description Solution 1. Check whether PV panels, cables, and con- nectors are waterlogged or damaged. Inverter detects that DC side's insula- ISO Over Lim- 2. Use a megger to measure ground resistance tion impedance to the ground is too itation on the DC sidel, and the measured value should...
  • Page 75 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual Error Message Description Solution Internal storage got abnomal. Caused 1. Restart the inverter. E2 Fault by a strong external magnetic field etc. 2. Seek help from the installer or manufacture. G FC I D e v i c e 1.
  • Page 76 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Error Message Description Solution Turn off inverter and remove the back-up connec- Abnormal voltage exists on the back- Backup OV tor. Use a multimeter to measure whether there is up side voltage existing on the back-up connector.
  • Page 77 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual Error Message Description Solution Internal communication got failed. 1. Restart the inverter. SCI Fault Caused by a strong external mag- 2. Seek for help from the installer or manufacture. netic field etc. Internal storage anomaly. Caused by 1.

  • Page 78: Inverter Maintenance

    CAUTION person away while performing electrical connection and maintenance. Any Arbitrary replacement of internal components is forbidden. Please seek help from SOLARMG for maintenance support. Otherwise, we will not take any responsibility. NOTICE Please remember not to do the self-maintenance before being familiar with the proper instruction of the whole process.

  • Page 79: Battery Maintenance

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual Items Methods Period Check dust or foreign matter on the heat-sink, air System clean Once 6-12 months inlet and outlet. Electrical Check whether the cables are in good connection. Once 6-12 months connection Check whether all the terminals and ports are Sealing properly sealed.

  • Page 80: Appendix

    REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series Appendix 10.1 Technical Parameters SG-25KWHBT SG-30KWHBT Model PV Input Start-up voltage (V) Max. DC input voltage (V)* 1000* 1000* Rated DC input voltage (V) MPPT voltage range (V)* 200-850* 200-850* No. of MPP trackers No.
  • Page 81 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series SG-25KWHBT SG-30KWHBT Model Grid Side ③ 50.0/43.5 Max. output current (A) 42.0 Max. input current (A) 43.5 52.2 Power factor 0.8 leading …0.8 lagging Max. total harmonic distortion <3% @Rated output power <0.5%In...
  • Page 82 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series SG-25KWHBT SG-30KWHBT Model Protection Integrated Battery input reverse connection protection Insulation resistance protection Integrated Surge protection Integrated Over-temperature protection Integrated Residual current protection Integrated Islanding protection Integrated (Frequency shift) AC over-voltage protection...
  • Page 83 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series SG-36KWHBT SG-40KWHBT Model PV Input Start-up voltage (V) Max. DC input voltage (V)* 1000* 1000* Rated DC input voltage (V) MPPT voltage range (V)* 200-850* 200-850* No. of MPP trackers No. of DC inputs per MPPT Max.
  • Page 84 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series SG-36KWHBT SG-40KWHBT Model Grid Side Max. total harmonic distortion <3% @Rated output power <0.5%In <0.5%In Back-up Side 36.0 40.0 Rated output power (kW) Max. output power (kW) 39.6 44.0 36.0 40.0 Rated output apparent power (kVA) Max.
  • Page 85 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series SG-36KWHBT SG-40KWHBT Model Protection Over-temperature protection Integrated Residual current protection Integrated Islanding protection Integrated (Frequency shift) AC over-voltage protection Integrated Overload protection Integrated AC short-circuit protection Integrated General Data Over voltage category PV: Ⅱ...
  • Page 86 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series SG-50KWHBT SG-40KWHBT-P SG-50KWHBT-P Model PV Input Start-up voltage (V) Max. DC input voltage (V)* 1000* 1000* 1000* Rated DC input voltage (V) MPPT voltage range (V)* 200-850* 200-850* 200-850* No. of MPP trackers No.
  • Page 87 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-50KWHBT SG-40KWHBT-P SG-50KWHBT-P Model Grid Side Max. total harmonic distortion <3% @Rated output power <0.5%In <0.5%In <0.5%In Back-up Side 50.0 40.0 50.0 Rated output power (kW) 55.0 44.0 55.0 Max. output power (kW) 50.0 40.0 50.0...
  • Page 88 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT User Manual SG-25~50KWHBT series SG-50KWHBT SG-40KWHBT-P SG-50KWHBT-P Model Protection Over-temperature protection Integrated Residual current protection Integrated Islanding protection Integrated (Frequency shift) AC over-voltage protection Integrated Overload protection Integrated AC short-circuit protection Integrated General Data Over voltage category PV: Ⅱ...

  • Page 89: Contact Information

    • Serial number of the device • Date of the device • Fault code/name • Brief description of the problem SOLARMG S.R.L • Via Enrico De Nicola, 52025 Montevarchi AR • Tel: +39 055 911 0077 • support@solarmg.it - sales@solarmg.it • Site: www.solarmg.it...
  • Page 90 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT...
  • Page 91 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT...
  • Page 92 REV.1 – Preliminary S.MG-UM:SG 25-50KWHBT www.solarmg.it...

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