Powerware 9170+ - Manual (Page 88)

Troubleshooting
84 Powerware ® 9170 User's Guide S LTM-1344 B Uncontrolled Copy
Table 18 contains descriptions of critical alarm codes. Critical alarms
require immediate operator attention and corrective action.
Table 18. Critical Alarm Messages
Alarm Message What It Means What to Do
Low Battery (A) The UPS has shut down after running
on battery and discharging the
batteries.
Wait for AC input power to be restored. When AC input
power returns, the UPS begins recharging batteries and
applies power to the load.
High Battery (C) The battery voltage is too high
because of a charger problem,
battery problem, or incorrect
parameter setting.
Contact your service representative.
Low AC Out (E) The UPS has shut down because the
AC output voltage is too low to
provide power to the load.
Contact your service representative.
High AC Out (F) The UPS has shut down because the
AC output voltage is too high.
Contact your service representative.
High AC In (S) The AC input voltage is too high; any
further increase to the voltage may
damage the UPS.
This alarm automatically clears when input voltage
returns to normal limits. The UPS will continue to support
the load until the batteries are depleted.
Output Overload (G) The load is requiring more power
than the UPS power modules are
capable of supplying, and the UPS
has switched to Bypass mode.
Switch off your equipment one piece at a time until the
alarm stops.
Overload Shutdown (I) The UPS has shut down due to
excessive load.
Remove excess load(s) from the UPS output and restart
the UPS by pressing the ON button through the front
panel display.
High Heatsink
Temperature (H)
The inverter temperature is too high.
If the temperature reaches a preset
limit, the unit will shut down.
If the UPS has not shut down, bypass the UPS or shut
down your equipment, and turn the UPS off. Contact your
service representative.
E P O (P) The Emergency Power-Off (EPO)
function has been activated.
Deactivate the external EPO switch and restart the UPS
by pressing the ON button through the front panel
display.
Call Service (T) The UPS has detected a problem that
requires service.
See Table 9 on page 67 and Table 20 on page 86 for
information about reason codes. Contact your service
representative.
Call Service (5) The UPS has detected a module fan
problem that requires service.
Contact your service representative.