CERTIFICATE AND
CONDITIONS OF WARRANTY
SECTION 1
Q
17
8 MAINTENANCE
!
DANGEROUS electrical voltages are generated inside the UPS. All maintenance
operations to be performed SOLELY AND EXCLUSIVELY by authorized personnel.
• Optimal operation of the unit is obtained by keeping it constantly powered (24 hours a day). This
guarantees correct maintenance of the battery charge.
• If there is to be a long period when the equipment is not in use, wait until the batteries are fully
charged before switching the UPS off completely ( mains present for eight hours consecutively).
• While the unit is not in operation, the batteries should be recharged for 24 hours at least every 4
weeks.
8.1 TROUBLESHOOTING FOR MINOR PROBLEMS
This section describes some of the most likely problems that may compromise proper operation of the UPS,
together with an attempt to identify the likely causes and possible solutions
!
IMPORTANT: if after following the indications in this chapter, the problems persist or
are repeated frequently, you should call the technical service centre providing a full
description of the problem.
Problem Possible cause Solution
The main switch is not inserted Insert the main switch
Mains voltage is missing Have an electrician check the
mains
The MAINS LED does not come
on, the acoustic alarm sounds at
intervals
Fuse on the input faulty.
Replace the fuse with another
one of the same type.
The MAINS LED flashes Phase and neutral inverted at the
input to the UPS
Remove the connection plug
from the mains and insert it again
inverted
UPS broken Contact the customer support
service.
The ALARM lamp is lit, the
acoustic alarm sounds
continuously.
Overtemperature Lower the ambient temperature
Battery expansion switch in the
“OFF” position
Turn the safety switch to “ON”
The number of external
expansion batteries is not set
correctly
Correct the settings (see chapter
4)
The batteries are not fully
charged
Charge the batteries for at least 8
hours consecutively.
The batteries are faulty Contact the customer support
service.
Battery back-up time less than
indicated
The battery-charger is defective Contact the customer support
service.
OVERLOAD indicator lamp lit Overload on the UPS output Reduce the load connected to
within the nominal value.
Serial connection cable error Use the cable provided.
The PC interface is busy with
another process or defective
Check that other SW applications
are not interfering.
No communication between UPS
and PC
Interference on the data cable Change position of the cable.
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