Dell EMC VxRail E Series Owner's Manual page 14

Overview
Figure 8 AC PSU status indicator
1. AC PSU status indicator/handle
This table describes the AC PSU status indicators and what condition is the PSU when the power
indicator light is green, flashing green, flashing amber, and when it is not lit.
Table 9 AC PSU status indicators
Convention Power indicator
pattern
A Green
B Flashing green
C Flashing green and
turns off
D Flashing amber
Dell EMC VxRail Appliances on PowerEdge Servers E Series Owner's Manual
14
Condition
A valid power source is connected to the PSU and the PSU is
operational.
When the firmware of the PSU is being updated, the PSU handle
flashes green.
When hot-adding a PSU, the PSU handle flashes green five times at 4
Hz rate and turns off. This indicates a PSU mismatch with respect to
efficiency, feature set, health status, and supported voltage.
Note: Ensure that both the PSUs are of the same capacity.
CAUTION For AC PSUs, use only PSUs with the Extended Power
Performance (EPP) label on the back.
Indicates a problem with the PSU.
CAUTION When correcting a PSU mismatch, replace only the
PSU with the flashing indicator. Swapping the PSU to make a
matched pair can result in an error condition and unexpected
appliance shutdown. To change from a high output configuration
to a low output configuration or vice versa, you must turn off the
appliance.
CAUTION AC PSUs support both 220 V and 110 V input voltages.
When two identical PSUs receive different input voltages, they
can output different wattages, and trigger a mismatch.