5 4
Ultron HPH Series UPS
7.1.4 Manual Bypass Mode Start-up Procedures (Single Unit)
WARNING:
1. Please note that you can only turn on the Manual Bypass Breaker when the UPS
needs maintenance. This ensures that the supply of power to the critical loads
will continue. If you turn on the Manual Bypass Breaker during normal mode,
the inverter will shut down, the UPS will transfer from normal mode to manual
bypass mode, and the output won’t be protected.
2. In manual bypass mode, the manual bypass supplies power to the critical loads
and maintenance personnel can perform maintenance without interrupting the
power supply to the critical loads.
3. When the UPS is in manual bypass mode, there is no high voltage inside the
UPS except the wiring terminal block and the Manual Bypass Breaker. Do not
touch the wiring terminal block and the Manual Bypass Breaker to avoid electrical
shock.
y
From Normal Mode to Manual Bypass Mode (Single)
1
Press
the
OFF
key (
) once and press the
DOWN
key (
WRFRQ¿UPWKDW\RX
want to shut down the UPS. After that, the
BYPASS LED
indicator (
) will
illuminate.
2
Turn on the manual bypass breaker.
3
For single input, please turn off the input breaker. For dual input, please turn off the
input breaker and bypass breaker.
4
Turn off the output breaker.
5
Ensure that the DC BUS voltage drops to below 20V.
6
&RQ¿UPWKDWWKHGLVFKDUJLQJSURFHVVLVFRPSOHWHGDQGWKH836LVVKXWGRZQ
7
Turn off each external battery cabinet’s breaker.
y
From Manual Bypass Mode to Normal Mode (Single)
1
Turn on every external battery cabinet’s breaker.
2
Turn on the output breaker.
3
For single input, please turn on the input breaker. For dual input, please turn on the
input breaker and bypass breaker.
4
&RQ¿UPWKDWWKH836UXQVLQE\SDVVPRGHDQGWKH
BYPASS LED
indicator
(
) illuminates.
Summary of Contents for HPH-100K
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