APC MX06 50 User Manual download pdf (Page 24)

MX06 Power Plant User’s Manual Page 20

Battery Low Voltage Disconnect

In order to prevent damage to the battery due to deep discharge, the DC power system has

hardware support for a battery Low Voltage Disconnect (LVD). A battery LVD has the loads

attached to the rectifiers and the battery is disconnected from the system. The MX06 provides

control for a motorized circuit breaker on the –48 V battery string. This motorized circuit breaker

is mounted on the back of the MX06. Figure 10 shows the power, control, and monitoring

connections. The controller will turn the motorized breaker off in a low voltage condition to

protect the battery. It can also be turned off manually as you would a non-motorized breaker. In

the event of an over-current situation the breaker will trip like a normal breaker.

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APC MX06 50 User Manual Page 24