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If the UPS has been manually set to operate in Bypass or Battery mode,
change the System Control Mode Preference (menu 4-1) selection to
Auto to return to normal Auto mode operation.
NOTE The UPS will not start operating if AC input voltage or frequency is beyond
acceptable limits or if the system mode selection is set to Battery. The UPS can not go
directly from Off to Battery.
Removing Input Power
Always put the Avaya RS9 UPS into the Off mode before removing input
power. Avaya RS9 system batteries will discharge if the input line
voltage is disconnected or turned off without first turning off the Avaya
RS9 UPS.
If the input power source will be disconnected or turned off for more
than a day or two, you should put the UPS into Sleep mode. Do this by
turning the UPS off, removing AC input power, and then pressing the
ON button and selecting Battery Protect (BP). Sleep mode allows the
UPS to remain unpowered for up to six months without having to
remove or recharge batteries.
Failure to properly power down the Avaya RS9 UPS could permanently
damage any installed batteries. Also, if batteries become severely
discharged, the UPS might not start immediately when input power is
restored.
Front Panel Display
The front panel has an alphanumeric display, three LED indicators, and
six pushbuttons as described in Figure 20 and in Table 4.
Avayat RS9 UPS (9–18 kVA, 9-Slot Models) Site Preparation, Installation and Operator's Manual
1
2
1 2 9
USER
Wout
3
watts
Slot
Top
4
A
B
Figure 20. UPS Front Panel
#3
2.07 KW
ESC
C
S
164201543 Rev A
Operation
33
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