LED indicators
for a complete overview of all LED indicators.
Lithium battery protection
• Excessive input voltage and transients are regulated down to a safe level.
• The Smart BMS will stop charging in case of cell over voltage or over temperature.
• It has three outputs, similar to the smallBMS:
1.
Load disconnect
• Can be used to control the remote on/off input of a
or other loads that have
remote on/off port functionality.
• Normally the Load disconnect output is high and becomes free-floating when cell undervoltage is imminent (default 2.8V,
adjustable in battery). Maximum current: 10mA
2.
Pre-alarm
• The pre-alarm output can be used to issue a visible or audible warning when the battery voltage is low and will trip with a
minimum delay of 30 seconds before the Load disconnect output is disabled due to cell undervoltage.
• The output may be used to drive a relay, LED or Buzzer and can be configured as continuous or intermittent signal.
• Its output is normally free floating and becomes high in case of imminent cell undervoltage (default 3,1V, adjustable in
battery). Maximum current: 1A (not short circuit protected).
3.
Charge disconnect
• The Charge disconnect output can be used to control the remote on/off port of a charger, such as the
relay, a
. Note that the Charge disconnect
output is not suitable to power an inductive load such as a relay coil.
• The output is normally high and becomes free floating in case of imminent cell overvoltage or overtemperature. Maximum
current: 10mA
In some cases an interface cable such as a non-inverting or inverting on/off cable may be required, see
2.3. What's in the box
• Smart BMS 12-200
• Ground wire with 10mm eye terminal
• 2-pin plug with pre-installed wire loop
• 3-pin plug for load/charge disconnect and pre-alarm
• Megafuse 200A pre-installed
• ATO fuse holder with 2x 7.5A fuse
Smart BMS 12-200
Page 3
Introduction
