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3.3 Safety in the total system
Functionality:
The safety system from ADS-TEC is based on a redundant safety concept which protects the battery cells
from unsafe operating windows. The safety concept ensures that the battery is switched off reliably in the
event of a fault, e.g. if the battery system exceeds a temperature threshold or the charging/discharging
power is exceeded. The safety thresholds are configured so that the system disconnects from the inverter
before the safe operating window is exited. After rectifying the error, the system can again be operated
safely.
First safety level:
The SRC4310 constantly checks predefined limit values and triggers an error if limits are exceeded or
fallen short of. Due to the error, the contactors are opened and the system switched to a safe state.
Second safety level:
Extended limit values are defined in the battery management system of the SRB. If exceeded or fallen
short of, corresponding measures are initiated and the system switched to a safe state.
Third safety level:
In addition, the SRB module has a separate, software-independent monitoring system that uses ICs to
force a safety shutdown. If the outermost limit values are exceeded or fallen short of, the system is
switched to a safe state.
The system reduces the maximum available power in the charge and discharge direction as a function of
the cell temperature.
NOTE
Safe operating window
system automatically disconnects from the inverter and prevents further
operation. A corresponding error message can be viewed via the communication
protocol or the web interface.
Page 18 of 72
If the safe operating window is exited, e.g., due to high overcurrents, the
GSS0608
Product description
Version: 1.3
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