Emerson AXP640-AC2-110VAC, Installation & Use Manual

Page: 79 / 190

AXP640 Operations
AXP640 Installation and Use (6806800M24E)
79
4.3 Powering Down the System
For data integrity reasons Emerson recommends to save data and close all applications before
powering down the system.
AC System Power-Down Procedure
To power down the AC system, proceed as follows:
1. Power down all inserted and active blades using a system management software.
2. Remove power from the system utilizing the external disconnect.
3. Verify that the LEDs of the PSUs are off.
DC System Power-Down Procedure
To power down the DC system, proceed as follows:
1. Power down all inserted and active blades using a system management software.
2. Toggle both PEM breakers to the OFF position.
3. Verify that the LEDs of the PEMs are off.
4.4 AC Power Supply (PSU)
This section discusses the operations of the AC power supply for the AXP640.
The system may be supplied with multiple power sources. Ensure to remove power from all
sources to completely remove power from the system.