10
User Guide DP300E
7OA0001 GB rev.09
NOTE:
A battery monitor test can
not be performed unless the
battery is fully charged.
6.0
Alarms - What to do
6.1
General
Alarms are indicated by the red lamp (above the upper left corner of the keyboard)
and by a 30 secs. acoustic signal. An alarm is registered in an alarm stack as long as
it is present, and if more in the same succession as they arise.
6.2
The alarm stack
The alarm stack can be displayed by:
Action
Description
1. Press
Access to the alarm stack
2. Press
or
Scroll up or down through the alarm stack messages.
Last message is “No (further) alarm”.
3. Press
Exits the alarm stack. If not operated the system
will exit the alarm stack automatically
after 30 seconds.
6.3
Alarm message
s
The alarm messages are together with the events logger (described in section 7.0)
part of a diagnostic system for the UPS service specialist.
Before calling for assistance you may take one or more of the following actions.
1.
“Battery defective” means no back-up capacity any longer. Call for assistance.
“Battery Week” means reduced back-up capacity. Reset the “Battery week” alarm
signal according to point 4.2 and start up a battery capacity test according to
point 8.4. When finished – record the obtained back-up time and reset an
eventual new alarm from the battery monitor. Let the UPS recharge the battery
for at least 16 hours, and with the same load as before start up a second battery
capacity test. If this results in improved back-up time continue with further
capacity tests until none or insignificant improvements take place. Above might
“wake up” the battery – else call for assistance.
2.
Check the local mains power supply. One or more fuses may be blown or some-
body could by accident have switched off the supply.
3.
Check if the cooling air intake on your UPS has been blocked.
4.
Check if somebody has switched more load on the UPS - the max. output capac-
ity may be exceeded.
5.
If there is no output voltage from the UPS - the mains supply is present and
atempt to restart gives no result – bypass the UPS as described in the following
section by means of the external service bypass switch if present.
Alarms
