ZERO EMISSION VEHICLES AUSTRALIA
4-12 CELL LITHIUM BATTERY MANAGEMENT SYSTEM
LED Status Codes
The BMS has a bicolour (red/green) LED
which it uses to display its operating
status. The table to the right summarises
the colour codes for the possible statuses
indicated.
Status
Colour
Running (no errors)
Green
Sleeping
Blinking green
Under-voltage trip
Flashing red
Over-voltage trip
Steady red
Thermal trip
Flashing red/green
BMS Power Consumption Protection
An inherent problem with any BMS which powers itself from the cells it is monitoring is that
the BMS itself can slowly discharge the cells, which can eventually flatten cells – particularly
if powering contactors or monitors, and if no charging source is present for an extended
period. To prevent possible damage, the BMS12i is able to switch off its own power supply
if any cells get critically low (under 2.0V). If your BMS has turned off due to a critically low
cell, simply attach a charging source to the batteries then press the power button to re-enable
the BMS.
If the battery system is not in use for a while (days to weeks) it is recommended to put the
BMS to sleep by joining the Sleep terminal to Ground, to reduce power consumption. If the
system will not be used for a long time (weeks or longer) it is recommended to turn the BMS
off, by bringing up Options buttons then tapping Power Off (or unplug the cell connector, if
you have no Monitor).
Tech Support and Warranty Information
All ZEVA products are covered by a 12 month warranty against manufacturing faults or
failures under normal operating conditions. The warranty does not cover misuse of the
product, including but not limited to: excessive voltage or reversed polarity on terminals,
short circuits on outputs, opening of housings and/or modification of internal electronics,
severe impact damage, submersion in water.
We have taken great care to design a safe and reliable product, but faults can happen. If
you believe your product has a fault, please contact us via our website to discuss. If it is
determined that a hardware fault is the likely cause, we will provide an RMA number and
return address to proceed with repairs.
If you have any questions not covered by this manual, please contact us via our website:
http://www.zeva.com.au
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