Troubleshooting
58
Avaya
t
RS9 UPS (9–18 kVA, 9-Slot Models) Site Preparation, Installation and Operator’s Manual
S
164201543 Rev A
Table 14 contains descriptions of non-critical alarm messages.
Non-critical alarms are not as urgent as critical alarms, but should be
attended to as soon as convenient to avoid the problem becoming
critical.
Table 14. Non-Critical Alarm Messages
Alarm Message
What It Means
What to Do
B Near Low Battery
The battery voltage has reached the
Near Low Battery set point.
If the voltage increases, the alarm clears automatically. If
it drops further, it will cause a Low Battery alarm.
D Low Runtime
Batteries in the unit are nearly
discharged.
Perform an orderly shutdown of all equipment and wait
for AC input power to return. When AC input power
returns, the UPS begins recharging batteries and
automatically restarts.
O Check Memory
The configuration as stored in the
system memory may have been
corrupted.
Look for the slot number (third line on display) of the
failed module. Contact your Avaya service representative.
M Check Battery
The batteries have failed an
automatic system test.
Contact your Avaya service representative.
M Check Battery
Open Cell
A battery (pair of modules) has failed
an open cell test.
Look for the slot number (third line on display) of the
failed modules. Verify that both battery modules are
properly installed. If properly installed, replace both
battery modules.
M Check Battery
Weak Battery
The system batteries have degraded
to the point where system runtime is
less than the designed rating.
Replace all battery modules.
U Low Redundancy
The number of active power modules
is too low to provide the programmed
redundancy level to protect the
current load.
The unit is able to protect the equipment, but will not be
fault tolerant. To regain the desired redundancy, either
add power modules or reduce the load.
U Low Redundancy
Insufficient Batteries
The UPS load exceeds 2800 watts per
battery string. The system will protect
the load during short power outages,
but battery degradation or damage
may result.
Reduce the load or install additional battery modules (two
modules per string).
U Low Redundancy
Insufficient Modules
The number of active power modules
is too few to provide the programmed
redundancy level while protecting the
load. The UPS will protect the load,
but will not be fault tolerant.
Reduce the load or install additional power modules.
