ABB DPA 250 S4 - 4.4 Battery Mode

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When the UPS system is in bypass mode, the status of UPS module control panel is displayed as follow :
LED Indicator Color
Rectifier Green
Bypass Green
Battery Green
Output Yellow
Breaker Status
MBS (Q1) Open
UPS Output switch (Q2) Closed
—
4.3-2
—
4.3-2: “Bypass Mode”
control panel mimic
The "Bypass-Mode”, is recommended only if the
loads can tolerate interruptions of 3-5 ms (trans-
fer time from the Bypass Mode to the Double
Conversion Mode).
NOTE
TO REACH THE HIGHEST ESSENTIAL
SECURITY LEVEL, WE RECOMMEND
RUNNING OF THE UPS ON NORMAL
OPERATION MODE, THEREFORE THE UPS
MODE (MODE "ON-LINE”)
In Battery Mode, the load is connected to the inverter (INV) and the inverter is supplied by the battery
or the energy storage system. The utility main supply is not available (L1).
—
4.4 Battery Mode
—
4.4-1
—
4.4-1: “ON BATTERY”
operating mode
When the UPS system is in battery mode, the status of UPS module control panel is displayed as follow :
LED Indicator Color
Rectifier Red
Bypass Green
Battery Green
Output Green
Breaker Status
MBS (Q1) Open
UPS Output switch (Q2) Closed
—
4.4-2
—
4.4-2: “Battery Mode”
control panel mimic
4 OPERATING MODES