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10. Troubleshooting
10.1. Faults and Initialization Issues
During initial setup of a Nuvation Energy BMS, there are two main classes of issues that can be
encountered:
1. Initialization issues
2. Triggering of faults
The first class of issues are encountered during initial deployment of a Nuvation Energy BMS,
particularly while attempting to power on the Stack Switchgear. When this event occurs, an operator
of the Operator Interface can open the Details|Safety accordion
a list of fault and warning triggers that may or may not be initialized. This section will provide details
on why the faults/warnings could not be initialized. Once all faults/warnings have been initialized,
Nuvation Energy BMS has been installed as expected (i.e. all inputs are receiving data). When this
occurs the software enters its operational mode.
The second class of issues occurs while Nuvation Energy BMS is operational. One or more faults can
be triggered causing Nuvation Energy BMS to exit its operating condition and open all contactors.
There are many faults that can be triggered. This section will describe the condition the fault monitors
and the meaning when that fault is triggered.
The following sections describe different classes of faults/warnings and issues surrounding any
initialization. In general, all warnings have a similar trigger condition as their corresponding fault. The
following discussion will focus on the term fault and all descriptions can be applied to the compatible
warning.
10.1.1. Cell Voltage Faults
stack_fault_cell_over
▪
Fault that is triggered when an installed cell voltage is above the over fault threshold
stack_fault_cell_hi
▪
Fault that is triggered when an installed cell voltage is above the high fault threshold
stack_fault_cell_lo
▪
Fault that is triggered when an installed cell voltage is below the low fault threshold
stack_fault_cell_under
▪
Fault that is triggered when an installed cell voltage is below the under fault threshold
10.1.1.1. Initialization Issues
These faults could fail to initialize through a number of possible conditions such as:
Document ID: NE-PM-003
Nuvation Energy High-Voltage BMS - Product Manual
(Section
83
6.2.4). That screen presents
Rev 1.2, 2021-03-03
Curie Update 1
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