Victron energy Lynx Smart BMS Manual
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Victron energy Lynx Smart BMS Manual

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ENGLISH
Lynx Smart BMS

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  • Page 1 ENGLISH Lynx Smart BMS...

  • Page 2: Table Of Contents

    5.1.1. Interconnecting Lynx modules ................... 9 5.1.2. Orientation of Lynx modules ..................9 5.1.3. System example - Lynx Smart BMS, 2x Lynx Distributor and lithium batteries ......10 5.1.4. System example - Lynx Smart BMS, 1x Lynx Distributor and lithium batteries ......10 5.1.5.
  • Page 3 8.4. Battery care ........................ 22 8.5. LED indications alarms and errors ..................22 9. Battery monitor settings ......................26 9.1. Special note on the Lynx Smart BMS battery monitor settings ............26 9.2. Battery capacity ......................26 9.3. Charged voltage ......................26 9.4.

  • Page 4: Safety Precautions

    Lynx Smart BMS 1. Safety Precautions 1.1. Safety Warnings Lynx Distribution System Do not work on live busbars. Ensure that the busbar is unpowered by disconnecting all positive battery poles prior to removing the Lynx front cover. Work on batteries should be carried out by qualified personnel only. Observe the battery safety warnings as listed in the battery manual.

  • Page 5: Introduction

    2.1. The Lynx Smart BMS The Lynx Smart BMS is a dedicated Battery Management System for Victron Lithium Smart Batteries. It contains a positive and a negative busbar, a BMS, a contactor and a battery monitor. It is part of the Lynx Distribution system.

  • Page 6: Lithium Smart Batteries

    It has VE.Can communication for monitoring and setup with a GX device. • Lynx Smart BMS - For use together with Victron Energy Smart Lithium batteries. It contains a positive busbar with a contactor that is driven by a battery management system (BMS) and a negative busbar with a shunt for battery monitoring. It has Bluetooth communication for monitoring and setup via the VictronConnect App and VE.Can communication for monitoring with...

  • Page 7: Features

    The contactor can also be used as a system on/off switch driven by the remote on/off signal. • The contactor closes when the Lynx Smart BMS is powered, the batteries are okay and the remote on/off switch is switched on.

  • Page 8: Pre-Charge Circuit

    • Present a High signal to the H terminal. If the H terminal is High (more than 2V) the Lynx Smart BMS switches on, and if the H terminal is Low (less than 2V) the Lynx Smart BMS will switch off.

  • Page 9: Battery Monitor (Shunt)

    3.8. Alarm relay The Lynx Smart BMS is equipped with an alarm relay that will activate in case there is an alarm. The relay is not configurable, with the exception of choosing continuous or intermittent (0.8s on and 0.8s off) operation.

  • Page 10: Communication And Interfacing

    4.2. GX Device and the VRM Portal The Lynx Smart BMS can be connected to a GX device via VE.Can and the GX device in its turn can communicate with the VRM portal. The GX device and the VRM will show all measured parameters, operational state, battery SoC and alarms.

  • Page 11: Nmea 2000

    This special charge sequence has been designed to rebalance the battery cells. 4.5. NMEA 2000 Communication with a NMEA 2000 network can be established via the Lynx Smart BMS VE.Can connection together with a VE.Can to NMEA2000 micro-C male cable. For more information see the NMEA2000 &...

  • Page 12: System Design

    5.1.2. Orientation of Lynx modules If the Lynx System contains a Lynx Shunt VE.Can or Lynx Smart BMS, the batteries always have to be connected to the left side of the Lynx System and the rest of the DC system (loads and chargers) connect to the right side. This, so the battery state of charge can be correctly calculated.

  • Page 13: System Example - Lynx Smart Bms, 2X Lynx Distributor And Lithium Batteries

    5.1.4. System example - Lynx Smart BMS, 1x Lynx Distributor and lithium batteries It is possible to connect the lithium battery directly to the input of a Lynx Smart BMS. This is usefull if only a single Lithium battery or a single series string of lithium batteries is used.

  • Page 14: System Example - Lynx Smart Bms Only

    5.1.5. System Example - Lynx Smart BMS only For a very slim line system, the Lynx Smart BMS can be used just by itself. This is usefull if the system contains a single Lithium battery or a single series string of lithium batteries together with a simple DC system.

  • Page 15: System Sizing

    5.2.3. Cabling The current rating of the wires or cables used to connect the Lynx Smart BMS to batteries and/or the DC loads has to be rated for the maximum currents that can occur in the connected circuits. Use cabling with a sufficient core surface area to match the maximum current rating of the circuit.

  • Page 16: Installation

    • If the Lynx system contains a Lynx Smart BMS or Lynx Shunt VE.Can, the left side is the battery side and the right side is the DC system side.

  • Page 17: Electrical Connections

    6.2. Electrical connections 6.2.1. Connect DC wires This chapter might not apply if the Lynx module is connected to other Lynx modules, like can be the case for the Lynx Smart BMS or the Lynx Shunt VE.Can. For all DC connections the following applies: •...

  • Page 18: Connect Bms Cables

    6.2.4. Connect the Multi connector The multi connector is the green connector situated on the bottom of the Lynx Smart BMS. The connector has 11 contacts. The contacts are numbered from left to right, starting with Pin 1, up to pin 11.

  • Page 19: Connect The Gx Device

    Remote on/off L The multi connector’s screw terminal can be pulled out of the Lynx Smart BMS, allowing for easy wiring. The remote on/off (pin 10 and 11) of the terminal are interconnected with a wire loop. In case the remote on/off connection is used, remove the loop and wire as desired.

  • Page 20: Make Settings

    6.3.1. Power up for the first time The Lynx Smart BMS will power up when a battery is connected to the battery terminals and the remote on/off switch is turned on (or the wire loop is placed in the remote on/off connections). This will be the case once the battery pole has been connected. Or the battery fuses have been placed.

  • Page 21: Settings Lynx Distributor

    • The absorption time is set by default to 2hours. This can be adjusted if required. • The state of charge (SoC) threshold is set by default to 70%. This is the threshold at which the Lynx Smart BMS starts a new full charging cycle.
  • Page 22 Lynx Smart BMS Setting the Lynx Distributor fuse names using VictronConnect Page 19 Installation...

  • Page 23: Commissioning The Lynx Smart Bms

    • Check if the load pre-charge is completed and if the contactor closes and the loads are powered. • Connect with VictronConnect and verify that the Lynx Smart BMS has the most up to date firmware and that all setting have been made, especially if the battery capacity is set correctly.

  • Page 24: Operation Lynx Smart Bms

    Sleep mode The Lynx Smart BMS will go into sleep mode when one of the battery cells is low and no charge voltage has been supplied for 2 hours. The contactor and most internal electronic is turned off, status LED is off, the power consumption is very low (0.8mA).

  • Page 25: Battery Monitor Operation

    This to safeguard the batteries against total discharge or extreme overcharge. The contactor will also open if the ATC or the ATD signal have not worked and the Lynx Smart BMS has detected that current is still flowing into or out of the battery.
  • Page 26 The Lynx Smart BMS is equipped with Bluetooth for easy monitoring and setup via the VictronConnect app. Lynx Smart BMS status VictronConnect If the Lynx Smart BMS is connected to a GX device it can be monitored via the GX device and the VRM portal. This also includes receiving alarms signals.
  • Page 27 Lynx Smart BMS Lynx Smart BMS alarms on the VictronConnect App and GX device This is a list of the alarm and error codes. For an explanation of these alarms and what to do on case of one of these errors or...
  • Page 28 Lynx Smart BMS Error Description BMS cable error Page 25 Operation Lynx Smart BMS...

  • Page 29: Battery Monitor Settings

    Unlike other battery monitors, the Lynx Smart BMS battery monitor settings are mostly fixed settings and are not customizable. The reason for this is that the Lynx Smart BMS is always used together with Victron Energy Smart Lithium batteries and a lot of battery monitor parameters are therefore known because they relate to the battery type.

  • Page 30: Tail Current

    Lynx Smart BMS 9.4. Tail current The battery is considered as “fully charged” once the charge current has dropped to less than the set “Tail current” parameter. The “Tail current” parameter is expressed as a percentage of the battery capacity.
  • Page 31 Lynx Smart BMS This setting is fixed at 5%. Page 28 Battery monitor settings...

  • Page 32: Troubleshooting And Support

    Battery voltage issues The Lynx Smart BMS, on first install will auto detect the battery voltage. It will be set to either 12V, 24V or 48V. Each set voltage has a specific battery voltage range (threshold). If the Lynx Smart BMS measures a voltage that is outside this thresholds one of these alarms will be generated: •...

  • Page 33: Lynx Smart Bms Operational Issues

    A high current alarm is given when the current is more than 600A for more than 5 minutes. The red LED flashing 8 times every 4 seconds. Reduce the loads connected to the Lynx Smart BMS so that the current through the Lynx Smart BMS will be below 500A.

  • Page 34: The Pre-Alarm Setting Is Missing In Victronconnect

    • If the BMS has cleared the alarm after the loop has been placed the battery is faulty and the BMS is not faulty. Testing a Lynx Smart BMS by connecting a single BMS extension cable to both BMS cable connections Multiple batteries and BMS check: •...

  • Page 35: System In Sleep Or Hibernate Mode

    Check the voltages of the connected batteries and if they are low, charge the batteries. As soon as the Lynx Smart BMS sees a charge voltage it will automatically re-activate and close its contactor to allow for battery charging.

  • Page 36: Incorrect State Of Charge Reading

    It is highly unlikely that the Bluetooth interface is faulty. These are some pointers to try before seeking support: • Is the battery voltage still high enough? If the battery voltage drops to a very low level, the Lynx Smart BMS will eventually turn its Bluetooth interface off.

  • Page 37: Gx Device Issues

    Lynx Smart BMS • Are you using the Windows version of the VictronConnect App? The Windows version cannot use Bluetooth. Use an Android, iOS or macOS device instead. • Has Bluetooth been disabled in the VictronConnect settings? • Does VictronConnect have an issue? Try to connect to another Victron product, does this work? If that also does not work, then there probably is an issue with the phone or tablet.

  • Page 38: Warranty

    Victron Energy to make such repairs. Non-compliance with the instructions in this manual will render the warranty void. Victron Energy is not liable for any consequential damages arising from the use of this product. The maximum liability of Victron Energy under this limited warranty shall not exceed the actual purchase price of the product.

  • Page 39: Technical Specifications Lynx Smart Bms

    Lynx Smart BMS 12. Technical specifications Lynx Smart BMS Power Supply voltage range 9 – 58Vdc Supported system voltages 12, 24 or 48V Reverse polarity protection Main safety contactor continious current rating 500A continuous Main safety contactor peak current rating...

  • Page 40: Appendix

    Lynx Smart BMS 13. Appendix Page 37 Appendix...

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