Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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Pyro fuse deployment was triggered by firmware but it could not be executed.
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Pyro fuse deployment failed
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Pyro fuse may not operate as expected
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Fault impacting the pyro sub-system.
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Pyro operations could not be started
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Pyro cannot be deployed
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Energy-reserve circuit has a failure.
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Voltage of the energy-reserve is out-of-tolerance
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Pyro deployment may be compromised
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Indicates a BMB reference voltage has continuously been out of bounds.
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Any BMB reference voltage has continuously deviated outside the in-bounds threshold of the nominal voltage
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Other BMB voltage signals will be substituted given the reference voltage is unreliable
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Indicates a mismatch between a stack voltage and the sum of its brick voltages.
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Any BMB continuously has a stack voltage that doesn't align with the sum of its brick voltages within the in-bounds tolerance
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BMB stack and brick voltage signals will be substituted
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HVPACK cannot talk to all BMBs.
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A communication issue with the BMB daisy chain is detected
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May indicate a loss of BMB sensor data
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Data integrity loss due to BMB chain double break.
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A prolonged communication issue with the BMB daisy chain that is known to cause a loss of BMB sensor data is detected
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The HVPACK is likely performing BMB sensor data substitution to replace data missing due to the communication issue
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A bmb die temperature is above maximum temperature limit.
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A bmb die temperature is above maximum temperature limit for X duration (in seconds)
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Brick balancing will be disabled
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Indicates valid data is missing for one or more stack voltages.
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One or more stack voltages are continuously detected as invalid
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Stack voltage data is likely being substituted to replace invalid readings
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Indicates valid data is missing for one or more brick voltages.
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One or more brick voltages are continuously detected as invalid
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Brick voltage data is likely being substituted to replace invalid readings
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Sets immediately on SPI comms errors for visibility into the health of the comms interface.
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On single SPI comms error with the asic
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HvSenseAsicFault is at risk of being triggered soon
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Sets immediately on SPI comms errors for visibility into the health of the comms interface.
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On single SPI comms error with the asic
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ShuntAsicFault is at risk of being triggered soon
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Warns if the pack current (discharge or charge) is above max current limit.
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The pack current (discharge or charge) is above max current limit.
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The pyro disconnect will blow
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Passive pyro reference is out-of-tolerance.
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Passive pyro reference is out-of-tolerance
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Passive pyro fuse thresholds are affected
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Shunt bar temperature is too high.
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Shunt bar temperature is too high
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Reduced accuracy and physical damage
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Shunt thermistor is not connected.
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Shunt thermistor reading is open-circuit
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Subpack may not come online
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The shunt measurement asic has a SPI communication fault or other internal fault.
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Fault condition was set during SPI communications
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Shunt readings are stale
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Passive pyro reference is out-of-tolerance.
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Passive pyro reference is out-of-tolerance
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Passive pyro fuse thresholds are affected
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The hvsense measurement Asic is not producing data.
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Timeout on expected communication
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HvSense readings are stale
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The TCR Coefficient Calibrations are not being used.
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The stored Shunt Bar Resistance was either invalid or the written gain was outside of tolerance.
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The default TCR coefficients will be used. Shunt current measurement accuracy may be reduced.
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