Connect Temperature Cable - Nuvation Energy NUV300-BC-12 Product Manual

The wiring of the battery cell voltage and temperature sensing should be verified
before connecting to the Low-Voltage BMS and Cell Interface. The temperature
sensing wires must be isolated from the cell voltage sensing leads. Although the

Low-Voltage BMS and Cell Interface include protective circuitry to make them more
resilient to brief wiring errors, the same circuitry can result in the battery cells being
slowly discharged. Over time, these wiring errors can cause damage to the Low-
Voltage BMS, Cell Interface, and/or the cells.

4.4.2. Connect Temperature Cable

The Temperature cable provides 10 kΩ NTC thermistors for temperature measurement of the cells
and/or surrounding area. These sensors are used by Nuvation Energy BMS to detect over and under
temperature conditions and adjust battery current limits to compensate for cell temperature.

2 to 7 thermistors are supported to accommodate systems requiring Nuvation
Energy BMS to meet functional safety requirements.
Cable Isolation
Because the sensors are referenced to the CELL0 input on the Cell Interface, care must be taken to
ensure that they are electrically isolated from any common or ground potential, and from all other
cell voltage terminals of all Cell Interface modules in the system
The thermistors must be isolated from the cell voltage terminals, as well as any metal work or
other exposed conductors, in such a way that they will not make an electrical connection to a cell
terminal in the event of vibration/failures.
Thermal Consistency
For safety certified systems, there is an additional constraint on thermal consistency for all
temperature measurements of the Low-Voltage BMS and Cell Interface. The constraint is described
in detail in Section
Document ID: NE-PM-002
Figure 31. 7 Thermistor cable (NUVW-A21A03-009)
7.10.9.
Nuvation Energy Low-Voltage BMS - Product Manual
40 Rev 1.2, 2021-03-03
Curie Update 1