User's Manual

Figure 14 Power supply
4. Status indicator (green—Normal operation; amber—Failure or no power)1. Power supply
5. Handle2. AC input connector
3. Latch
Fan module
Fan modules provide the cooling necessary to maintain the proper operating temperature within
the controller enclosure. If one fan fails, the remaining fan is capable of cooling the enclosure.
Figure 15 Fan module pulled out
2. Amber—Fan fault LED1. Green—Fan normal operation LED
Table 9 Fan status indicators
DescriptionFault indicatorStatus indicator
Normal operation.Solid greenGreen
Maintenance in progress.Blinking
Amber is on or blinking, or the enclosure is powered
down.
Off
Fan failure. Green will be off. (Green and amber are
not on simultaneously except for a few seconds after
power-up.)
OnAmber
Battery module
Battery modules provide power to the controllers in the enclosure.
18 EVA4400 hardware