■
To Switch to OFF
Turn the main line switch of the power distribution unit to the OFF position (marked "¡").
Note
This does not need to be turned off for normal operation. If the
ETERNUS DX must be turned off, such as
before any inspections of power supply devices are performed, turn off the ETERNUS DX by using the
procedure described in "Powering Off" (page 21), turn all the PSU switches of the power supply unit to
the OFF position, and turn the main line switch of the power distribution unit to the OFF position.
● For 1U
Figure 3 OFF Position of the Main Line Switches on a 1U Power Distribution Unit
● For 2U
Figure 4 OFF Position of the Main Line Switches on a 2U Power Distribution Unit
IMPORTANT
When turning the main line switch to ON (marked "|") right after turning the main line switch to OFF
(marked "¡"), turn it back to ON (marked "|") after the POWER LED of the power supply unit has
turned off completely.
Switching On and Off the PSU Switch on the Power Supply Unit
This section explains how to move the PSU switch of the power supply unit of the controller enclosure and drive
enclosures to the ON and OFF positions in each enclosure. Note that power supply units for high-density drive
enclosures, frontend enclosures, and controller enclosures in the
ETERNUS DX500 S5/DX600 S5/DX900 S5 do not
have PSU switches.
1. Basic Operation
Powering On and Off
14 Operation Guide (Basic)
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