This appendix gives a list of error and warning codes and possible solutions.
E0: Calibration failure
Internal malfunction – calibration data failure/missing
Contact dealer for support – Fault is not user correctable and SBP requires replacement.
E1: Short circuit
Short circuit protection is activated in the event of a short circuit, an overload condition or excessive inrush current - such as when attempting to directly power an inverter or inverter/charger.
Check for a potential short circuit condition.
Confirm that the load current draw does not exceed the SBP current rating.
Use the SBP to control the remote on/off switch on loads with high inrush currents, rather than directly powering/disconnecting the DC supply.
Check for loose/high resistance connections and ensure that appropriate gauge wiring is used in the installation.
P2: Over temperature warning
Urgent intervention required to prevent load disconnection.
Internal temperature close to the limit. Over temperature protection will be activated if temperature continues to rise.
E2: Over temperature
Over temperature protection is activated in the event of excessive internal temperature.
Confirm that the load current draw does not exceed the SBP current rating.
Check for loose/high resistance connections and ensure that appropriate gauge wiring is used in the installation.
Do not install the SBP unit in a location exposed to high temperature or radiant heat - relocate SBP to a cooler position or provide additional active cooling.
P3: Under voltage warning
Urgent intervention required to prevent load disconnection.
Under voltage protection will be activated in 90 seconds if no action is taken.
E3: Under voltage
Under voltage protection is activated in the event that the input voltage drops below the under voltage limit selected for 90 seconds.
Switch off/disconnect loads and recharge the battery.
Check charging system and battery for proper operation.
E4: Over voltage
Over voltage protection is activated in the event that the input voltage exceeds 16V (for 12V systems) or 32V (for 24V systems).
Confirm the configuration of all charging devices in the system - particularly system voltage and charge voltage settings.
Check charging system for proper operation.
Confirm SBP system voltage configuration is correct.
E5: Configuration failure
Internal malfunction - configuration data failure/missing.
To recover the SBP from this condition;
Reset the unit to factory defaults under - Settings > More options > Reset to defaults
Disconnect all power and wait 3 minutes before reconnecting.
Reconfigure the unit as required.
E6: Reference voltage failure
Internal malfunction - reference voltage failure/missing.
Contact dealer for support - Fault is not user correctable and SBP requires replacement.
E7: BMS lockout
BMS lockout protection is activated in the event the external BMS requests the SBP to consecutively disengage and then re-engage 3 times (typical behaviour during a shut down due to low cell voltage).
Once E7 is activated, the SBP will remain disengaged until input voltage exceeds 13 V (for 12 V systems) or 26 V (for 24 V systems).
Check BMS error codes/log to identify the cause of shut-down and rectify issue.
Switch off/disconnect loads and recharge the battery.
Check wiring between BMS and SBP Remote terminal.
Check BMS for proper operation.
E8: Reverse current
Reverse current protection is activated in the event that reverse current flow is detected.
Caution
CAUTION: The SBP is designed to allow or prevent current flow from IN to OUT terminals ONLY. Reverse current flow is strictly forbidden and may permanently damage the SBP.
Uncontrolled reverse current will flow through a Smart BatteryProtect if Vout > Vin. Therefore, never use a Smart BatteryProtect for battery to battery charging.
Check that the SBP installation orientation is correct - current flow must be from IN to OUT (refer to example wiring diagrams).
Confirm that no charging sources are inadvertently connected to the SBP OUT terminal/circuit.
If the SBP is used to disconnect a charge source, confirm that no loads are inadvertently connected to the SBP IN terminal/circuit.