Stack Voltage Faults; Thermal Faults - Nuvation Energy NUV300-BC-12 Product Manual

2. Misconfiguration on the number of Low-Voltage BMS or Cell Interface modules. Refer to the
register sc_linkbus.cicount (Note that Low-Voltage BMS is counted as a Cell Interface).
3. Incorrect Low-Voltage BMS or Cell Interface configuration. For example if the type of Low-Voltage
BMS or Cell Interface defined in sc_linkbus.softwareid is incorrect, it may prevent the cell voltage
measurement.
4. Failure in the Link Bus communication. Any interruptions of the bus can prevent the cell voltages
from being initialized. Such a failure could happen if:
•
Not all Cell Interface modules are connected
•
Link Bus cables are connected to the wrong port (i.e. Link Out instead of Link In).
•
Link Bus cables are damaged
•
Not enough cells are connected to the Low-Voltage BMS and/or the Cell Interface expansion
module.

10.1.2. Stack Voltage Faults

stack_fault_voltage_over
▪
Fault that is triggered when the stack voltage is above the over fault threshold.
stack_fault_voltage_hi
▪
Fault that is triggered when the stack voltage is above the high fault threshold.
stack_fault_voltage_lo
▪
Fault that is triggered when the stack voltage is below the low fault threshold.
stack_fault_voltage_under
▪
Fault that is triggered when the stack voltage is below the under fault threshold.
stack_fault_voltage_sum
▪
Fault that is triggered when the absolute difference between the measured stack voltage and
sum of all cell voltages in the stack exceeds the fault threshold.
10.1.2.1. Initialization Issues
These faults have the following initialization issues:
Fault
stack_fault_voltage_hi
stack_fault_voltage_lo
stack_fault_voltage_sum

10.1.3. Thermal Faults

Document ID: NE-PM-002
Initialization Issues
Power interface subsystem's AFE is configured to be disabled
Same issues regarding cell voltage initialization issues
Nuvation Energy Low-Voltage BMS - Product Manual
(Section 10.1.1.1)
162 Rev 1.2, 2021-03-03
Curie Update 1