Installation, Operation and Technical Manual Rectifier Technologies
158-1872-01 68 19-Feb-14
A Low Voltage Disconnect Switch (LVDS) is often
integrated into the system to disconnect the batteries from
the load in the event that the AC power outage is too long
causing the batteries to discharge beyond a safe level. The
voltage level at which the LVDS opens is set in this screen.
When this screen is as shown, the LVDS switch opens
automatically when the voltage drops to the trip level set in
the previous screen.
When the AC power is restored and the system output
voltage rises after the rectifiers start up, the LVDS will close
automatically.
To operate the switch manually, press ENTER and the Auto
will flash on and off. Press INC to scroll to Closed, followed
by Open followed by Auto again.
Press ENTER at the desired state - e.g. Open to open the
switch.
Menus for Load Shedding are available only on selected models.
Load 1 shedding is enabled.
Load 1 shedding is disabled. The next screen will not be
displayed.
Bus voltage level at which load 1 will be disconnected. With
the bus voltage rise this load will be reconnected at level 1V
higher than this value.
Load 2 shedding is enabled.
Load 2 shedding is disabled. The next screen will not be
displayed.
Bus voltage level at which load 2 will be disconnected. With
the bus voltage rise this load will be reconnected at level 1V
higher than this value.
End of Load Shedding menus.
Enable/disable the temperature sensor alarm. If no
temperature sensors are present in the system, this field
should be set to ‘Off’.
6.9 Battery Discharge Test
Battery Discharge Test is available on selected MCSU-4 models.
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