External Power - Nuvation Energy High-Voltage BMS Installation Manual

Pin Connection
1 R_OVERRIDE_ENA#
2 R_DRV_ENA#
3 COM

5.3.3. External Power

The External Power connector accepts power from an external power supply. This is the sole power
source for Nuvation Energy BMS. The external supply can be either 16-24 V AC or 13-34 V DC and
must be isolated from chassis and COM grounds. There is no polarity dependency between
PWR_B pins.
Connect an external power supply to this connector.
Table 28. External Power: Molex MiniFit Jr Connector
Document ID: NE-IG-001
Table 27. Interlock Connector Pin Assignment
Description
Active-low; Allows Nuvation Energy BMS
software to control contactors
Active-low; Allows internal hardware fault
detection to override Nuvation Energy BMS
software control of contactors
Power return from Power Interface
Molex 39-01-2025
Manufacturer
Housing
Housing material
Circuits
Crimp terminal
Wire gauge range
Nuvation Energy High-Voltage BMS - Installation Guide
Molex Incorporated
39-01-2025
Nylon UL94V-0
2
39-00-0181
AWG18-24 stranded
32
Connected to Device
Interlock Connector Pin 3
Interlock Connector Pin 3
Interlock Connector Pin 1 or Pin
2
PWR_A
Rev 2.1, 2020-03-13
and