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From Manual Bypass Mode to Normal Mode (Parallel)
Turn on each UPS's external battery cabinet's breaker.
1
Turn on each UPS's output breaker.
2
For single input, please turn on each UPS's input breaker. For dual input, please
3
turn on each UPS's input breaker and bypass breaker.
Confirm that each UPS runs in bypass mode and the BYPASS LED indicator
4
(
Turn off each UPS's manual bypass breaker.
5
Press each UPS's ON key (
6
beep.
After each UPS's NORMAL LED indicator (
7
the start-up procedures from manual bypass mode to normal mode are completed.
7.2.5 Normal Mode Turn-off Procedures (Parallel)
If you want to shut down one of the parallel UPSs, please follow the procedures below.
Press the OFF key (
1
DOWN key (
For single input, please turn off the UPS's input breaker. For dual input, please turn off
2
the UPS's input breaker and bypass breaker.
Turn off the UPS's output breaker.
3
Ensure that the UPS's DC BUS voltage drops to below 20V.
4
After the UPS that you want to shut down completes the discarding process, the UPS's
5
LCD display will be off.
Turn off the UPS's external battery cabinet's breaker.
6
7.2.6 Battery Mode Turn-off Procedures (Parallel)
If you want to shut down one of the parallel UPSs, please follow the procedures below.
Press the OFF key (
1
DOWN key (
For single input, please turn off the UPS's input breaker. For dual input, please turn off
2
the UPS's input breaker and bypass breaker.
) illuminates.
)
) of the UPS that you want to shut down once and press the
)
) of the UPS that you want to shut down once and press the
)
59
Chapter 7
UPS Operation
) illuminates, it means that
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