Figure 16. Battery cooling fan control wiring diagram
Fan power should be de-energized during installation; this usually involves turning off a breaker at a
panel.
4.2.6. Connect E-Stop
This feature allows a 24 V DC E-Stop signal, provided either by the internal power supply (shown in
) or by a source external to the Nuvation Energy system (shown in
), to trigger a
BMS fault and disconnect the stack using an internal safety relay. In this event, the BMS will also
enter a fault state.
Internally, the E-Stop input is connected to the safety relay coils while the E-Stop output is connected
to the internal 24 V DC power supply. One Stack Switchgear unit’s E-Stop output is capable of driving
the E-Stop inputs for up to two Stack Switchgear units (i.e. one other Stack Switchgear unit in
addition to itself); this allows the two Stack Switchgear units to share an E-Stop circuit. For
applications requiring more than two Stack Switchgear units on the same E-Stop circuit, an external
24 V DC power source must be used.
For specifications of this input, see
.
Nuvation Energy High-Voltage BMS - Product Manual
Document ID: NE-PM-003
20
Rev 1.2, 2021-03-03
Curie Update 1
