17
Technical data
and start-up
EVB1-350/400-40-HP
3.4.2
Current Monitoring (Derating)
In the BMS the current is continually measured at 2.5 s intervals. This measurement can be communicated via
CAN (
BATT_Current_Ac
t). Alongside this, a second measurement is taken continually at 125 ms intervals, this has
a poorer resolution due to the shorter measurement time (6 A). This parallel measurement makes a very fast
reaction / shut-down possible in the case of an overload. With this, the BMS can recognise a short-circuit within just
6 ms and disconnect the battery from the DC intermediate circuit.