2
.
Product Description
English 8/2020. Rev 0.3
7
2.1.2
SMU (String Management Unit)
SMU collects all information about the battery system and controls the battery system by switching the main
power line and controls each Battery Module by cell balancing. SMU calculates the state-of-charge (SOC) and state-
of-health (SOH) of the battery system. Key components in the SMU are Rack BMS, MCCB, and shunt resistor. Rack
BMS is the main controller that takes all data from the Module BMS, measures the string voltage and current,
determines the state of the battery and controls the MCCB accordingly.
UL: V049-0011AA
Figure 2-3: SMU
Summary of Contents for 9395
Page 1: ...English 8 2020 Rev 0 3 LIB System for UPS U6A4 Installation Manual 136S ...
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Page 10: ...Important Safety Instructions vi English 8 2020 Rev 0 3 ...
Page 17: ...Table of Contents English 8 2020 Rev 0 3 vii ...
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