OPM_LPS_31E_8K0_20K_1GB_V010.doc 20/40 Operating Manual LP 31 / 8-10-15-20 kVA
4.3.2 Status Messages and Alarm Messages
The LP 31 UPS alerts the user with a standard alarm screen that the operating mode has
changed and/or that an alarm situation occurs:
ON LINE
ALARM (press up) The actual operating mode, the possible modes are
mentioned below. The lower line -if displayed- shows that an
alarm occurred.
More information can be retrieved with the “+” key. If no
further information is available, the second line is blank.
Possible operating modes:
ON LINE The normal operating mode.
For more information see chapter 2.2.
ON BYPASS Overload or failure situation.
For more information see chapter 2.5.
ON BATTERY For a detailed description of this mode see chapter 2.3.
OUTPUT OFF No power is delivered to the load.
This can be the result of a command via the ComConnect
Port, or because no electric energy is available (mains failure,
empty batteries).
ON MANUAL BYPASS Service mode.
For more information see chapter 2.6.
From the standard alarm screen depressing “+” shows which alarms are active, in priority
order. Scroll through the screens with “+” and “-”.
Alarm message texts can succeed each other.
The following messages are possible
LOADnotPROTECTED
CAP. C1 DEFECT The output capacitor C1 is defective.
Contact your dealer.
UPS OVERLOADED
REDUCE LOAD The load exceeds the rated output power of the UPS, and the
output voltage can no longer be guaranteed.
This text alternates with the following screen:
UPS OVERLOADED
Load 107% Showing the actual load as % of the nominal UPS rating.
These messages are displayed if the load is > 100%.
If the load exceeds 150% the UPS will immediately switch to bypass, assuming that the
conditions for a transfer to bypass are fulfilled.
If an overload condition between 100-150% persists, the UPS can eventually also switch to
bypass operation due to temperature protection.
If a transfer to bypass is inhibited (due to voltage or frequency errors of the mains supply) the
UPS may automatically switch OFF within a few seconds (load dependent).
Output power is lost at that moment.
To avoid these problems, be absolutely certain that the power demands of the protected
equipment are within the limits of the UPS.
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