User guide

79
Emergency power off (EPO)
In of the event of an environmental disaster or problem (e.g., fire, earthquake, etc.), the emergency
power off (EPO) procedure can be performed to shut down computers, uninterruptible power
supply systems (UPS), and air conditioners to prevent further damage.
Because there is a risk of data corruption when EPO is performed, clearly define scenarios to
perform EPO in advance. Operate your system with an understanding of these scenarios and the
procedure to perform EPO.
Make sure to follow the instructions and notes to use the blade enclosure and other
devices safely. There is a risk of death or serious injury. For more information, see
the descriptions on page 3.
● In case of emergency, EPO should be performed quickly. Clearly define scenarios
to perform EPO in advance. Operate your system with an understanding of these
scenarios and the procedure to perform EPO.
● Place the power supply tap in a place where it is noticeable and easy to access so
that power can be shut down in an emergency.
Important
Data may be corrupted when emergency power off is performed.
Power supply tap
In case of emergency, disconnect the power cords attached to the AC inlets of the blade enclosure
from the power supply tap.
Place the power supply tap in a place where it is noticeable and easy to access so that the power
cords can be disconnected quickly.
Example: How to disconnect L6-20P power cord.
Disconnect all power cords connected to the blade enclosure according to the illustration above.
CAUTION
Blade Enclosure
(SIGMABLADE-H)
Power unit
Power cord
Power supply tap
(1)
(2)
(1)
Turn the power cord plug left.
(2) Disconnect
Power cord
Power supply tap
Closeup