SOLARMG 1.5K User Manual
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SOLARMG 1.5K User Manual

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REV.1-Preliminary
S.MG-OM:SG 2-6S
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  • Page 1 REV.1-Preliminary S.MG-OM:SG 2-6S Contents...

  • Page 2: Table Of Contents

    Dear User, 5.1 Connecting Protection Ground (PGND) Cables -------------------------------------------------- 22 Thank you so much for your choosing 1.5K-6K, the latest generation of grid-tied PV Strings 5.2 Connecting AC Output Cables ------------------------------------------------------------------------ 24 inverter (hereinafter referred to as the inverter) designed and developed by SolarMG.
  • Page 3 REV.1-Preliminary S.MG-OM:SG 2-6S Safety Precautions Symbol Conventions Safety symbols used in this manual, which highlight potential safety risks and important safety information, are listed as follows: Before using the product, please read these safety precautions in User Manual carefully. Symbol Description 1.1 Personnel Safety lndicates an imminently hazardous situation which, if not correctly...

  • Page 4: Electrical Connections

    REV.1-Preliminary S.MG-OM:SG 2-6S a. For personal safety, maintenance personnel must wear appropriate personal protective 1.4 Electrical Connections equipment (like insulation gloves and protective shoes) far the inverter maintenance. DANGER Before installing the inverter, check all electrical ports lo ensure no b.
  • Page 5 Do not connect PV modules in parallel lo several PV inverters for WARNING operation. 2.1.2 Model Description Figure 2.1 shows a model number of the inverter, using 3K as an example. Figure2.3 1.5K-3.6K PV lnverter with Single MPPT Input (unit: Power class code Figure 2.1...
  • Page 6 The 4K-6K PV lnverter with Dual MPPT Input receives input from two strings of PV panel (1.5K-3.6K PV lnverter with Single MPPT Input receives input from only one string of PV panel). Then the inputs are grouped into two independent MPPT routes inside the inverter to track the maximum power point of the PV panel.
  • Page 7 REV.1-Preliminary S.MG-OM:SG 2-6S Storage 2.5 Working Modes Three working modes of the inverter are shown as follows: standby, operating, and shutdown. This chapter describes the storage requirements for the inverter. Table 2.1 shows the conditions for the inverter to switch between working modes. The following storage instructions apply if the PV inverter will not be deployed immediately: Modes...
  • Page 8 REV.1-Preliminary S.MG-OM:SG 2-6S Installation Do not install the inverter on flammable building materials or in an DANGER area where flammable or explosive materials are stored. Do not install the inverter in a place where personnel are likely to come into contact with its enclosure and heat sinks to avoid electrical CAUTION shock/burn.
  • Page 9 REV.1-Preliminary S.MG-OM:SG 2-6S The inverter must be installed in a well ventilated environment to ensure good heat dissipation. 4.3.2 Compliance and Safety Symbols The inverter must be free from direct exposure to sunlight, rain, and snow to extend its service Safety symbol Description life.
  • Page 10 REV.1-Preliminary S.MG-OM:SG 2-6S Figure 4.4 lnstallation Space Requirements (unit: mm) When installing multiple inverter, install them along the same line (as shown in Figure 4.5) if sufficient space is available, and install them in triangle mode shown in Figure 4.6) or in stacked mode (as shown in Figure 4.7) if no sufficient space is available.
  • Page 11 REV.1-Preliminary S.MG-OM:SG 2-6S 4.5 Installing a Rear Panel Before installing the inverter, secure the rear panel to a wall. Step 1 Move out the rear panel from the packing case. Step 2 Determine the positions for drilling holes (as shown in Figure 4.10) using the rear panel.
  • Page 12 Figure 4.14. Step 3 Tighten the two hexagon screws at the both sides of the inverter to a torque of 1.2N.m and 3N·m respectively. Screw specs for 1.5K-3.6K and 4K-6K are M4 and M6 respectively, as shown in Figure 4.14.

  • Page 13: Connecting Protection Ground (Pgnd) Cables

    REV.1-Preliminary S.MG-OM:SG 2-6S • ectrical Connections 5.1.2 Wiring Procedures Step 1 Remove an appropriate length of the insulation layer from the PGND cable using a wire Stripper; the length is a little bit longer than that of OT terminal's crimping end by 2mm~3mm, Before performing any electrical connections, ensure that both DC...

  • Page 14: Connecting Ac Output Cables

    Inverter Model Cable type Step 4 Plug the AC connector into the inverter. Range Recommended Value Range Recommended Value outdoor cable 1.5K-3.6K 10~14 4K-6K outdoor cable Table 5.1 b. The recommended specifications of circuit breaker are shown in the table below .
  • Page 15 REV.1-Preliminary S.MG-OM:SG 2-6S Ground, neutral, and line wires must correspond to G, N, and L terminals NOTICE of AC connectors respectively. Otherwise, the faulty connection will lead to the inverter performance failure. Step 5 After the AC terminal is connected, Install as shown below.

  • Page 16: Connecting The Pv Strings

    Step 1 Remove an appropriate length of the insulation layer from the positive and negative power cables using a wire stripper, as shown in below Figure. Cross-sectionaI Area(mm Cable Outer Diameter(mm) lnverter model Cable Type Range Range Recommended Value 1.5K-3.6K Common cables in the industry (model:PV1-F) 4K-6K Table Recommended DC input cable recommended...

  • Page 17: Connecting Communication Cables

    REV.1-Preliminary S.MG-OM:SG 2-6S Step 4 Tighten the locking nuts on the positive and negative connectors using a removal 5.4 Connecting Communication Cables wrench, as shown in Figure 5.13. 5.4.1 Communication Mode Description You can use the following communication modes to implement communication: Bluetooth, WIFI, GPRS and RS485 all of which are described as follows.

  • Page 18: Power Limit (Optional)

    REV.1-Preliminary S.MG-OM:SG 2-6S 5.5 Power limit (optional) 5.5.2 Wiring diagram of lnverter+Meter 5.5.1 Wiring diagram of lnverter+CT Figure 5.16 Wiring diagram of lnverter+CT Figure 5.18 Wiring diagram of lnverter+Meter Power limit function Power limit function Power limit function Power limit function Disable CT sensor Disable...

  • Page 19: Lnstallation Verification

    REV.1-Preliminary S.MG-OM:SG 2-6S - Set the "Power limit function" to "Digital Power Meter" 5.6 lnstallation Verification Set the Digital Power Meter Type Check the following items after the inverter is installed according to Table 5.4. Set the meter position base on the meter installed on load or on grid - Set maximum feed-in grid power if needed No other objects are put on the PV inverter.

  • Page 20: System Operation

    REV.1-Preliminary S.MG-OM:SG 2-6S • System Operation ser Interface Display screen of inverter is composed of LED indicator ( LCD is optional for some models). 6.1 Powering ON the lnverter LED contains three color states, blue, green and red respectively. For more details, refer to Table 7.1 HMI specification definition.

  • Page 21: Hmi Specification Definition

    REV.1-Preliminary S.MG-OM:SG 2-6S 7.1 HMI specification definition 7.2 LCD automatic-page-turning display Mode Display content Note Standby blink(slowly) Blue led Model name Normal status Version Green led Limited power operation Red led Refer to the table below PV voltage The LCD display interface of the AC voltage inverter standby state is shown in Grid over voltage...

  • Page 22: Maintenance

    REV.1-Preliminary S.MG-OM:SG 2-6S • oubleshooting and Maintenance 8.2 lnverter Troubleshooting When the inverter has an exception, its basic common warning and exception handling methods are shown in the table 8.2. Before maintaining and commissioning inverter and its peripheral distribution unit, switch off all the charged terminals of the inverter WARNING and wait at least minutes after the inverter is powered off.

  • Page 23: Removing The Lnverter

    REV.1-Preliminary S.MG-OM:SG 2-6S remote monitor lf modem or other data logger is used, please reboot The insulation Communications displays zero il; if still does not work after rebooting, contact your resistance against outage power generation dealer. the ground al the 1.

  • Page 24: Warranty

    3) The defective/damaged PV inverter replaced must be returned. Technical Assistance SolarMG offers a technical assistance and consultancy service. To take advantage of this service, the following number is active: 055911077. 9.2 Liability Waiver Warranty or liability will be void if damage is caused from below operations situations.

This manual is also suitable for:

2k3k3.6k4k5k6k

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