4.4. Remote control and short circuit behavior
This section describes the behaviour of the Smart BatteryProtect when it is controlled via the remote on/off input and when a short
circuit has been detected.
• The Smart BatteryProtect will connect the load 1 second after the remote input is closed.
• The Smart BatteryProtect will disconnect the load immediately when the remote input is opened.
• When in Li-ion mode, the Smart BatteryProtect will observe a dead period of 30 seconds after the remote input of the Smart
BatteryProtect has become free floating. See the note below for a detailed description.
• In case of a short circuit, the Smart BatteryProtect will attempt to connect the load every 5 seconds. After two attempts the
display will show E1 (short circuit detected).
When in Li-ion mode, the SBP will disengage when the H input becomes free floating and will remain
disengaged for 30 seconds, even if it receives a re-engage signal within that time period. After 30 seconds it
will respond immediately to a re-engage signal. Therefore, there will normally be no waiting time if the SBP
is used as a system on/off switch (wire the system on/off switch to the positive supply of the BMS for this
purpose).
Similarly, if a system shutdown occurred due to low cell voltage, the SBP will remain disengaged for 30
seconds, even if it receives a re-engage signal within that time period (which most likely will happen when
no other loads are connected to the battery). After 3 attempts to re-engage, the SBP will remain disengaged
until battery voltage has increased to more than 13.0V (resp. 26.0V for a 24V system) for at least 30 seconds
(which is a sign that the battery is being recharged). The under voltage thresholds and alarm output of the
SBP are inactive in this mode.
4.5. Error & Warning modes
There are 9 possible error modes and 2 warning codes, indicated by the 7-segment display and within the VictronConnect app
when using a Bluetooth enabled smartphone or tablet:
• E0 Calibration failure
• E1 Short circuit
• E2 Over temperature / P2 Over temperature warning
• E3 Under voltage / P3 Under voltage warning
• E4 Over voltage
• E5 Configuration Failure
• E6 Reference Voltage Failure
• E7 BMS Lockout
• E8 Reverse current
• P2 Over temperature warning
• P3 Under voltage warning
After 5 minutes the error is no longer displayed to reduce current consumption.
Please refer to the appendix chapter
for more info on each error.
Smart BatteryProtect 12/24V
Page 12
Operation and programming