Pin
Connection
Description
Connected to Device
6
VBOT
External Temperature Probe Reference 6
10 kΩ NTC Thermistor
7
VBOT
External Temperature Probe Reference 7
10 kΩ NTC Thermistor
8
VBOT
External Temperature Probe Reference 8
10 kΩ NTC Thermistor
9
TEMP1_R
External Temperature Probe Input 1
10 kΩ NTC Thermistor
10
TEMP2_R
External Temperature Probe Input 2
10 kΩ NTC Thermistor
11
TEMP3_R
External Temperature Probe Input 3
10 kΩ NTC Thermistor
12
TEMP4_R
External Temperature Probe Input 4
10 kΩ NTC Thermistor
13
TEMP5_R
External Temperature Probe Input 5
10 kΩ NTC Thermistor
14
TEMP6_R
External Temperature Probe Input 6
10 kΩ NTC Thermistor
15
TEMP7_R
External Temperature Probe Input 7
10 kΩ NTC Thermistor
16
TEMP8_R
External Temperature Probe Input 8
10 kΩ NTC Thermistor
For safety certified applications there must be at least 2—but no more than
7—thermistors installed per Cell Interface module in a specific pattern. The following
table lists the expected pattern of thermistor installation approved for safety
certification.
Table 26. Safety Certified Thermistor Installation
Total Thermistors
per Cell Interface
TEMP1_R
TEMP2_R
TEMP3_R
TEMP4_R
TEMP5_R
TEMP6_R
TEMP7_R
TEMP8_R
7
Installed
Installed
Installed
Installed
Installed
Installed
Installed
Not Installed
6
Installed
Installed
Installed
Installed
Not Installed
Installed
Installed
Not Installed
5
Installed
Installed
Not Installed
Installed
Not Installed
Installed
Installed
Not Installed
4
Not Installed
Installed
Installed
Installed
Installed
Not Installed
Not Installed
Not Installed
3
Not Installed
Installed
Installed
Installed
Not Installed
Not Installed
Not Installed
Not Installed
2
Not Installed
Installed
Installed
Not Installed
Not Installed
Not Installed
Not Installed
Not Installed
8.2.2.1. Thermal Consistency
For safety certified systems, there is an additional constraint on thermal consistency for all
temperature measurements for each Cell Interface. The constraint is described in detail in the Sensor
Fault Detection section within the Nuvation Energy BMS: Safety Manual (available on request).
8.2.3. Link In
The Stack Switchgear is pre-configured to expect a defined battery topology, based
on the information provided to Nuvation Energy during order fulfillment. Connecting
a differing battery topology will result in undesirable Stack Switchgear behavior.
Please contact
if there is a change in battery topology
requiring a Stack Switchgear configuration update.
This interface is used, with Link Bus cables, to connect each Cell Interface in series to the Cell
Interface of the next lowest potential, and the Cell Interface of the lowest potential to the Stack
Switchgear. In this series-connected chain of modules, each connection is made from the Link In
connector of the module with higher potential to the Link Out connector of the module with lower
Nuvation Energy High-Voltage BMS - Product Manual
Document ID: NE-PM-003
79
Rev 1.2, 2021-03-03
Curie Update 1