Product Manual
Table Of Contents
- Lynx Smart BMS
- Table of Contents
- 1. Safety Precautions
- 2. Introduction
- 3. Features
- 4. Communication and interfacing
- 5. System Design
- 6. Installation
- 7. Commissioning the Lynx Smart BMS
- 8. Operation Lynx Smart BMS
- 9. Troubleshooting and Support
- 9.1. Lynx Smart BMS does not power up
- 9.2. Lynx Smart BMS operational issues
- 9.3. BMS issues
- 9.3.1. The BMS frequently disables the battery charger
- 9.3.2. The BMS is prematurely turning chargers off
- 9.3.3. The BMS is prematurely turning loads off
- 9.3.4. The pre-alarm setting is missing in VictronConnect
- 9.3.5. BMS is displaying alarm while all cell voltages are within range
- 9.3.6. How to test if the BMS is functional
- 9.3.7. System in sleep or hibernate mode
- 9.3.8. Battery communication error
- 9.4. Battery monitor issues
- 9.5. VictronConnect issues
- 9.6. GX device issues
- 10. Warranty
- 11. Technical specifications Lynx Smart BMS
- 12. Appendix
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.
Figure 1.
DC System
BMS cables
Lynx Smart BMS
Fuse
BatteryProtect
Allowed to
discharge signal
System with a Lynx Smart BMS, without other Lynx modules.
5.2. System sizing
5.2.1. Current rating Lynx Smart BMS
The Lynx Smart BMS is available in a 500A model.
The Lynx Smart BMS is rated to a specific current. Do not exceed this current rating.
The Lynx Smart BMS is equipped with an over-current protection. The 500A Lynx Smart BMS will allow 600A for 5 minutes. But
as soon as the current or the time has been exceeded, an alarm will be generated. The contactor will not open. An over current
alarm will be generated and ATC or ATD (depending on current direction) is disabled after 30s delay.
It is not possible to parallel multiple Lynx Smart BMS modules. Only a single Lynx Smart BMS can be used per system.
The table below gives an idea of how much power a Lynx Smart BMS is rated for at different voltages. This will give you an
indication how big the connected inverter/charger system can be. Do keep in mind, that if inverters or inverter/chargers are used,
both the AC and the DC system will be powered from the batteries.
12V 24V 48V
500A 6kW 12kW 24kW
5.2.2. Fusing
The Lynx Smart BMS does not contain a fuse. Fusing needs to be done externally. This can be done by connecting Lynx
Distributor modules to the Lynx Smart BMS or by using external fuse holders and fuses.
Always use fuses with the correct voltage and current rating. Match the fuse rating to the maximum voltages and currents that
potentially can occur in the fused circuit. For more information on fuse ratings and fuse current calculations see the Wiring
Unlimited book.
The total value of the fuses of all circuits should not be more than the current rating of the Lynx module, or the
Lynx model with the lowest current rating in case of multiple Lynx modules are used.
Lynx Smart BMS
Page 14 System Design