Solar MD SS4143-11 Installation Manual
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Solar MD SS4143-11 Installation Manual

Advanced lithium-ion battery
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INSTALLATION MANUAL
SS4143-11
Advanced Lithium-Ion battery
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Summary of Contents for Solar MD SS4143-11

  • Page 1 INSTALLATION MANUAL SS4143-11 Advanced Lithium-Ion battery...

  • Page 2: Table Of Contents

    Introduction Product Description Product Specifications Errors or Inaccuracies Copyrights Safety Information ⚠ Warnings ⚠ Cautions Specification Mechanical installation Installing cover plates Electrical installation Switching the battery ON Multicolor multipurpose button Button function Button indication Firmware How to Update Communication Pinout Monitoring and control CANBUS connection.

  • Page 3: Introduction

    Product Description The SS4143-11 battery solution is available in one standard size and can be paralleled to meet most residential applications. The rated voltage is 51.2V nominal (to suit 48V systems). Larger systems are provided by Solar MD based on specific project requirements.

  • Page 4: Product Specifications

    Product Specifications All SS4143-11 specifications & descriptions contained in this document are verified to be accurate at the time of printing. Solar MD reserves the right to make any product revisions & improvements at any time. Errors or Inaccuracies To communicate any inaccuracies, omissions or to provide general feedback regarding this manual, send an email to info@solarmd.co.za...

  • Page 5: Specification

    Specification Solar MD 14.3kWh SS4143-11 specification Lithium Iron Battery type Scalability Phosphate SS4143 CANBUS 500kbps / CAN Battery module Communication 2.0B 14336 Wh Single 120 Ohm Rated battery capacity Can BUS termination Max 10 kW 256 - 499 Output power...

  • Page 6: Mechanical Installation

    Mechanical installation...

  • Page 7: Installing Cover Plates

    Installing top cover plate Figure 3a: Top cover installation single or multiple batteries in line...
  • Page 8 Figure 3b: Battery spacing - installation single or multiple batteries in line...
  • Page 9 Figure 3c: Battery feet - installation of battery feet...

  • Page 10: Electrical Installation

    Electrical installation Step 1. Before connecting anything be sure that the battery ON/OFF switch is at OFF position. (figure 4) Figure 4: BMS board component locations...
  • Page 11 Connecting Inverters/chargers/UPS to the battery unit while it is ON can cause big sparks due to capacitors inside the connected device. This can be harmful to people. Connecting the main battery terminal must be with the correct size cable based on the rated current of the battery and the charger/inverter in case it’s lower. Figure 5: Connection terminals Step 2.

  • Page 12: Switching The Battery On

    Switching the Battery ON Step 1. Make sure all DC cables are tightened according to specifications. Step 2. If the battery operates in parallel with other energy sources, make sure that the difference between battery voltage and DC bus is not more than 2.5V. If greater than 2.5V please charge or discharge the other source accordingly until the voltage difference is in a safe range under 2.5V.

  • Page 13: Multicolor Multipurpose Button

    Multicolor multipurpose button Figure 6 : Multicolor / Multipurpose button. Button functions The main functions of MFB (Multi Function Button) are: Switching Battery On/Off Representing various states of the battery with its built-in LED. Accessing quick function list Parameter Menu Switching battery ON/OFF Start by putting the ON/OFF micro switch on the BMS into the ON position.
  • Page 14 LED States The MFB is equipped with an LED bezel which can be configured to show different types of battery information. Under normal battery conditions it can be configured to display battery capacity, Current flow direction (charge or discharge) or OFF. This setting will be overridden if the battery is in warning mode or error mode.
  • Page 15 parameter number and parameter value is represented by LEDs flashing e.g if Indication LEDs are flashing the current menu state is Parameter number. Changing Parameter number is done by a single quick press of MFB, to switch to value mode press and hold MFB for more than 2 seconds, after that the value LEDs will start blinking quickly.
  • Page 16 Figure 7: LEDs on the BMS Main menu navigation Parameter Parameter Possible value number Reserved Function of Indication LEDs 1. Show current flow and direction 2. Show battery capacity 3. LEDs off Reserved Enter Sub menu See table below for more info (see below for more detail) Execute override OFF for 120 seconds Execute override ON for 120 seconds...
  • Page 17 Sub menu navigation Parameter Parameter Possible value number Operation mode 1. Test mode 2. Low voltage mode 3. Production mode 4. High voltage mode Reserved Inverter type 1. None (Feature disabled) (Low voltage Mode) 2. SMA 3. Victron 4. Sunsynk 5.
  • Page 18 Example: Navigating the sub menu to change BMS operation from Standalone mode to High Voltage mode. Visual Representation Description Step 1 Press and hold until the 4th LED starts blinking (the LEDs will blink sequentially from left to right starting at LED 1). Long press the button to enter into the sub menu.

  • Page 19: Button Indication

    SoC for 5 intervals. The flashing code for discharge represents the opposite from charge - study color for 1 interval and slow loss of color following illumination interruption. Solar MD users refer to both as charging / discharging waves.

  • Page 20: Firmware

    5 intervals. The flashing code for discharge represents the opposite from charge - study color for 1 interval and slow loss of color following illumination interruption. Solar MD users refer to both as charging / discharging waves. Firmware BMS EX can store multiple firmware versions.

  • Page 21: Communication

    Communication Figure 8: BMS communication ports The BMS is equipped with three communication interfaces hosted over five connection ports. The Communication ports are split into two domains. Each domain is marked in the board with white contour line and carries an isolation rating of 1500Vdc. Isolated Domain 1: Screw connector 1, RJ45 connector 1 and RJ45 connector 2 are for the CANBUS 1 interface.

  • Page 22: Pinout

    Pinout Isolated Domain 1 Isolated Domain 2 Isolated Domain 3 Screw RJ45 RJ45 RJ45 RJ45 Screw connector Connector Connector Connector Connector connector connector Pin 1 CAN 1 Low Pin 2 CAN 1 high Pin 3 TX or 5v Pin 4 CAN 1 CAN 1 CAN 2...

  • Page 23: Monitoring And Control

    Monitoring and Control BMS-EX uses various communication interfaces and protocols to communicate with the logger and connected inverters. Charge and Discharge Control The charge and discharge current and voltage is the maximum and minimum current and voltage range for the battery based on conditions such as cell model, cell voltage and cell temperature. The value is expressed in voltage, current and percentage of rated current and communicated to connected inverters via the logger or CANBUS (2) and RS485 ports.
  • Page 24 Figure 9: Voltage and capacity based charge and discharge control CAN BUS 1 and 2 BMS-EX is equipped with two separate CAN BUS interfaces, each with various methods of connection. CANBUS 1: Comprising Screw connector 1, RJ45 connector 1 and RJ45 connector 2. This interface is reserved for connecting SolarMD devices (BMS-EX, BMS-EM, BMS-PL, Logger V-series, MPPT3000).
  • Page 25 Each interface has two indication LEDs which indicate traffic Flash Orange 0.5s: Broadcasting, No communication active Flash Orange 0.1s: Establishing communication Green: Line connected For stable communication a 120Ω termination selector switch is mounted on the board for each interface. **Note: The first and last device in a chain should have terminations ON.

  • Page 26: Canbus Warnings And Errors

    Can bus Warnings and Errors CAN BUS LED Status Description Indication LED Green LED - Off CANBUS interface disabled Orange LED - Off Green LED - Off Line Open Orange LED - Flashing with 1 short pulse No other devices detected on the Bus and 1 long pulse Green LED - Solid on Initialising...

  • Page 27: Bms Warnings And Errors

    BMS Warnings and Errors Method of displaying general warnings and errors: Figure 11 : Display general warnings and errors, main status LEDs and indication LEDs. The Status LEDs determine what the indication LEDs will show. 1. If the Status LED is Green the indication LEDs will show: a) Battery capacity b) Current flow and direction c) Off...

  • Page 28: Troubleshooting Warnings / Errors

    The BMS is set for different number cells in series as the Contact your installer or Solar MD support team actually installed Battery cell voltage is way too low. Fill in the failure report and send to support@solarmd.co.za...
  • Page 29 Status, Warnings and Errors The BMS-EX is equipped with an onboard diagnostics system. The system will trigger warnings and errors when one or more battery parameters nears or exceeds the operational limit of the cells, cables or the BMS itself. Warnings and errors are displayed in two ways: Events: The BMS generates and stores events when settings are changed or when warnings or errors are triggered.

  • Page 30: Warning Register

    The functionality of the indication LEDs are configurable, see more on this: multifunction push button. If the Warning LED is Orange The indication LEDs will show the warning number in binary, which corresponds to that tabulated below in the warning register.
  • Page 31 Negative fuse blown Force relay ON (Override ON) Force relay OFF (Override OFF) Master message missing Controlled device coms failed External Temperature sensor 3 missing or faulty External Temperature sensor 2 missing or faulty External Temperature sensor 1 missing or faulty Temperature Control: Discharge Overcurrent Temperature Control: Charge...
  • Page 32 Remote device warning number 2 Specific to connected control device Remote device warning number 1 Specific to connected control device One or more batteries in the cluster are offline Cluster not settings not set Duplicate BMS serial number in cluster Discharge current too high Charge current too high Cell temperature too low...

  • Page 33: Error Register

    Battery cell voltage too low Error Register Error Visual Representation Description Code If the Error LED blinks RED, refer to the indication LEDs to find the corresponding Error event in the table below Max 14921 not responding (Cell monitoring) BMS Memory Failure Open cell detected Internal EEPROM error External EEPROM error...
  • Page 34 Incorrect Cell Count Override ON out of range Temperature Control: Discharge Overcurrent Temperature Control: Charge Over current Undervoltage Shutdown Shutdown Protection Override Out of Range Over Voltage Sleep Awake Over Voltage Sleep Under Voltage Sleep Charging Over Current Discharging Over Current...
  • Page 35 Board Over Temperature Board Under Temperature BMS Calibration Required Protection Relay Coil Over Current Protection Relay fuse blown Protection Relay coil open Gyro Z out of range Gyro Y out of range Gyro X out of range External Temperature sensor 3 missing or faulty External Temperature sensor 2 missing or faulty...
  • Page 36 External Temperature sensor 1 missing or faulty Shunt Temperature Sensor Fault BMS initialising This is not an error state but the BMS will not close the relay until all checks are complete during BMS startup...

  • Page 37: Maximum Charging / Discharging Voltages For Non Supported Devices

    @0.3C discharge / charge current. If so adjust the values above. Please check if your inverter charger has been approved by Solar MD and it is CAN bus compatible. For the latest Solar MD installation documents go to: https://www.solarmd.com/inverter-compatibility-solarmd...

  • Page 38: Annex A: Bmx-Ex Inverter / Charger Control And Cluster Operation

    Annex A: BMS-EX Inverter/Charger control and Cluster operation...
  • Page 39 Content: Information on this document General Information Supported Inverters Victron Sunsynk / Deye Goodwe Device Connection Sunsynk Victron Goodwe Battery Cluster Cluster Data Master Battery Warnings Cluster Reset...

  • Page 40: Information On This Document

    1. Information on this document 1.1. General Information This document describes how to use Solar MD battery EX series in combination with Inverters/Chargers. As of firmware version 171 BMS-EX from Solar MD supports direct control of Inverters connected via CANBUS.

  • Page 41: Device Connection

    3. Device Connection 3.1. SMA 3.1.1. General Information 3.1.1.1. Protection of the battery system in Sunny Island: The operation of the overall system and the protection of the battery system in Sunny Island are based on the SOC of the battery. The battery preservation mode prevents the battery from being deeply discharged as far as possible when the energy supply is low, thus, preventing a total system failure as well as damage to the battery.
  • Page 42 3.1.1.2. SMA Essential for a trouble-free and safe operation ● For the CAN-Sync bus (named ComSyncIn/ComSyncOut) at Sunny Island a termination is required at both ends of the cable for each communication bus: CAN and SYNC. ● The termination at Sunny Island side is typically the RJ45 termination plug (ISDN terminator), plugged into one of the sockets, while the other socket connects to the next Sunny Island.
  • Page 43 utility grid at phase L1’’. To overcome this issue we suggest the ‘’Maximum reverse power’’ be set to at least 200W and the ‘’Maximum reverse power tripping time’’ be set to 20 seconds. To get to these settings open the inverters web interface. Click on the ‘’Device Parameter’’...
  • Page 44 3.1.3.3. Multiple inverters, multiple batteries...

  • Page 45: Sunsynk

    Sunsynk 3.1.4. General information 3.1.4.1. For protection the battery will send the inverter one or more of the following status commands. 3.1.4.1.1. Charge Enable - This tells the inverter that charging is permitted. This will be disabled when the charge control value is less than or equal to 50%.
  • Page 46 3.1.5.1. Single inverter, Single battery 3.1.5.2. Single inverter, multiple batteries 3.1.5.3. Multiple inverter, multiple batteries 3.1.6. Inverter settings 3.1.6.1. To enable CAN BUS communication on the inverter, you will need to select the lithium setting on the inverter. Navigate to Settings →...
  • Page 47 Note: The image below might differ depending on the firmware version of your inverter display.

  • Page 48: Victron

    3.2. Victron 3.2.1. General Information 3.2.2. Communication Cable Connection It is recommended that CAT5e cable be used. The termination resistor on the last battery should be ON, the rest should be OFF. Note: When connecting multiple inverters refer to the inverter manual for more information.
  • Page 49 3.2.2.2. Single GX data logger, Multiple batteries 3.2.3. Battery settings 3.2.3.1. Refer to the BMS of LoggerV manual to configure the CANBUS 2 interface for a Victron device. Note: After changing CANBUS 2 settings on the battery, the Victron GX device will need to be rebooted.
  • Page 50 3.2.4.3. A good indication that the system is correctly wired and configured is when the port monitor displays a steadily increasing value for both TX packets and RX packets. Errors, overruns and dropped packets are an indication of an issue with the cabling, cable terminations, inverter CAN BUS interface settings or battery CAN BUS interface setting.
  • Page 51 3.2.5.1. Battery modules - value which represent Cluster DC Connected batteries as Online and sum of “DC disconnected” and “Cluster Offline” as offline...

  • Page 52: Goodwe

    3.3. Goodwe 3.3.1. General Information 3.3.2. Communication Cable Connection 3.3.2.1. Single inverter, Single battery 3.3.2.2. Single inverter, Multiple battery...
  • Page 53 3.3.3. Inverter Settings 3.3.3.1. Configure the inverter, connect to its WiFi signal using password ‘’12345678’’. Then open the Goodwe PV Master application. Navigate to the ‘’Settings’’ tab, then click on ‘’Basic Settings’’ the password of which is ‘’goodwe2010’’. In the battery model settings page select the ‘’SolarMD’’...

  • Page 54: Battery Cluster

    Battery Cluster A battery cluster is a group of one or more batteries connected on the same DC Bus. All batteries in the cluster must be connected on CANBUS1 and CANBUS2. 3.4. Cluster Data All batteries in the cluster process the information of the other batteries and calculate a CSD (Cluster Summary Data).

  • Page 55: Warnings

    3.6. Warnings When the BMS is working in a cluster or is controlling a device on CAN BUS 2, there are 2 additional warning flags the BMS will show. Warning flag 14. This warning indicates that one or more batteries in the cluster are offline.

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