Removal and replacement procedures 43
Item Component
Indicator Color
Description
1
Source A available indicator
White
Indicates the EPO power status for main
power feed A
2
Source A wrong rotation indicator Red
Indicates the Source A power phase
rotation is incorrect
3
Source B wrong rotation indicator Red
Indicates the Source B power phase
rotation is incorrect
4
Source B available indicator
White
Indicates the EPO power status for main
power feed B
5
EPO shutdown indicator
Red
Indicates an EPO shutdown or alarm
situation
6
EPO armed indicator
White
Indicates that the EPO system is armed and
operational
7
EPO reset button
Blue
Resets the EPO system when pressed
8
EPO mode key control
—
Enables you to select the EPO mode.
9
EPO shutdown button
Red
Initiates a manual EPO event
10
Light test button
—
Tests all the EPO LED indicators when
pressed
11
EPO bypass mode indicator
Green
Indicates that the EPO shut down
functionality is bypassed
12
EPO test mode indicator
Yellow
Indicates that the EPO system is operating
in test mode or that an EPO cover is open
13
Main light switch
—
Turns power to the HP POD 20c lights off
and on
14
ECS power switch
—
Turns the main power to the 24V ECS
system off and on
Removing the ECS EPO LED indicators
1.
Remove the screw from the mounting base (1).
2.
Remove the contact block from the mounting base (2).