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R&D – USER MANUAL DT0430-E04
6.2. FIRE
In the almost impossible case of fire, remember to only use CO
2
or powder extinguishers. Always
activate the emergency BY-PASS and completely shut off the machine, disconnecting the battery panel
as well.
6.3. FAULTS RELATED TO THE NATURE OF THE LOAD
Many times normal UPS reactions to the non-standard load or installation environment are incorrectly
recognized by the users as the UPS faults.
The most common situations are described below:
• The UPS is left with load supplied by the reserve line even if the inverter section is operating correctly:
this may occur on excessive absorbed peak current. It causes the major drop-down voltage, which –
if is repetitive - leads to the switching load to the reserve line.
The system, after three failed attempts to switch and return to the inverter, blocks the static switch on
the reserve line to protect the inverter, therefore it is necessary to study the load current and eliminate
the causes of the overcurrents.
The repetitive peak current should not exceed 2.5 times the effective value.
• The accuracy of the UPS output voltage is not optimal: this may depend on an excessively unbalanced
and/or distorting load.
Tappo
Radiatore
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