Operation Procedure
855-900549
3-11
3.3. Emergency
System
Shutdown with AC SW
The switches on the switch panel are provided for forced power off in the event that an
emergency power shutdown is required. Do not use these switches in normal operation.
See 2.2.1 Cabinet for the location of the switch panel. See 2.2.6 Power Bay for the location of the
AC switch on the base module and expansion power bay. The number of switches on the switch
panel depends on the number of installed base modules and expansion power bays. Take care
of the association between these switches and base modules and expansion power bays during
switch operation.
The power can be shut down by pressing the AC switch on the switch panel at the front top of the
cabinet. See 2.2.1 Cabinet for the location of the AC switch. When a UPS is connected, the
power switch of the UPS does the same as the AC switch on the switch panel.
Use the power switch of the UPS for emergency power shutdown. Refer to the UPS manual for
the power-off procedure. With basic configuration, if a UPS is connected, do not operate the
switch panel.
CAUTION
Data may be destroyed when the AC switch is turned off during
operation.
CAUTION
Provide criteria for operating the AC switch and use the switch
according to the criteria.
3.4.
AC-LINK (Auto Control)
When connecting a UPS or a new AOC to the system, you need to decide whether it is controlled
automatically or manually, and if you select automatic control, ask our maintenance personnel to
enable automatic control.
SP command AC link mode
Description
SG
On
AC LINK is enabled (it is
disabled by default).
The SP console screen for confirming and executing AC LINK is shown below.
CAUTION
When an automatic control system such as the rack
management system is installed, wait for more than two
minutes after OS shutdown to perform AC power-off control.
* If the AC power-off control starts within two minutes after OS
shutdown, an error will occur during system shutdown, or
the system will not start normally next time.
