MG Energy Systems LFP Series, Руководство пользователя

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11 BOUNDARY LIMITS
The boundary limits that are used by the master for the battery modules are listed in this chapter. A level will
be triggered when a boundary condition is true for a defined period of time.
Battery thresholds are compatible with the following master BMS firmware versions or higher:

Master HV 1.14 or higher

Master LV 1.24 or higher
11.1 Limits
Boundary limits are defined to keep the battery within manufacturer’s specifications.
The tables with the boundary limits consist of:

Name, description of the situation;

Action, action on respond of the boundary, set/clear or failsafe;

Boundary condition, contains a value that is needed for an action in combination with the time;

Time that the boundary condition has to be present before it will be triggered. Times indicated with
“+” start counting if the previous boundary condition above is set.
Cell voltage
Table 13 Cell voltage boundary limits slave BMS
Name Action Boundary condition Time
Almost charged Set >= 3440 mV 10 sec.
Clear < 3390 mV 10 sec.
Charged Set >= 3520 mV +10 sec.
Clear < 3440 mV 10 sec.
Over voltage warning Set >= 3600 mV +20 sec.
Clear < 3520 mV 20 sec.
Over voltage critical Failsafe >= 3650 mV +5 sec.
Almost discharged
Set <= 3075 mV 10 sec.
Clear > 3125 mV 10 sec.
Discharged Set <= 2800 mV +10 sec.
Clear > 3075 mV 10 sec.
Under voltage warning Set <= 2600 mV +20 sec.
Clear > 2800 mV 20 sec.
Under voltage critical Failsafe <= 2400 mV +5 sec.