Thermistor Temperature Thresholds - Nuvation Energy NUV300-BC-12 Product Manual

stack_fault_cell_over.thresh may or may not be different from stack_fault_cell_hi.thresh, depending
upon system requirements. For example, if a battery system is expected to implement self-clearing
(non-latching) faults during operation, the stack_fault_cell_hi.thresh must be set slightly below
stack_fault_cell_over.thresh.
stack_fault_cell_over trigger from engaging, which would require an explicit clear action. If the
stack_fault_cell_over.thresh and stack_fault_cell_hi.thresh are identical, it is impossible to implement
self-clearing behavior on high voltage conditions. The same applies to under-voltage conditions.
The stack_fault_cell_[over/under] or the stack_fault_cell_[hi/lo] trigger can be disabled if only one
behavior is necessary.
User-defined triggers are also available for high and low cell voltages.
Register
stack_trig_cell_hi.thresh
stack_trig_cell_lo.thresh

7.5.3. Thermistor Temperature Thresholds

Separate configuration thresholds are provided for charging and discharging as many cells have
different temperature limits in these two modes of operation. Charge triggers will only trip while the
stack is charging, while discharge triggers will only trip while the stack is discharging or resting.
The following diagrams illustrates how temperature trigger thresholds are configured in typical
applications.
Figure 68. Typical Arrangement of Temperature Thresholds
These thresholds also affect the current limits of the system as shown below.
Document ID: NE-PM-002
This allows the
Table 9. User-Defined Cell Voltage Triggers
Setting
User-defined high cell voltage trigger
User-defined low cell voltage trigger
Nuvation Energy Low-Voltage BMS - Product Manual
stack_fault_cell_hi
98
trigger to prevent
Rev 1.2, 2021-03-03
Curie Update 1
the