User`s manual
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User’s manual 1 UPS EVO DSP PLUS TT
5)3 !4!"$
When 4! led illuminates and the buzzer beeps continuously, it means that there is a fatal error in the UPS.
Users can get the 4!,$ from display panel. Please check the “Troubleshooting” chapter for details.
Please check the loads, wiring, ventilation, mains supply, Battery and so on after the fault occurs. Don’t try to
turn ON the UPS again before solving the problems. If the problems can’t be fixed, please contact Technical
Service immediately.
# ,! * ',= ! $,, ( ,, * ! = %!
7!=!$ $!!6$*(>$!')
Below you can see the “Fault Table”, with each Fault event and the relative FAULT code/icon on graphic LCD for
the user’s information.
. 4; #.; . 4; #.;
01 Bus start failure None 1A Phase A Inverter fault None
02 Bus over None 1B Phase B Inverter fault None
03 Bus under None 1C Phase C Inverter fault None
04 Bus unbalance None 21 Battery SCR short circuited None
06 Inverter over current None 24 Inverter relay short circuited None
11 Inverter soft start failure None 29
Battery fuse broken in Battery
mode
None
12 High inverter voltage None 31 Parallel communication failure None
13 Low inverter voltage None 36 Parallel output current unbalance None
14
Inverter A output(line to
neutral) short circuited
41 Over temperature None
15
Inverter B output(line to
neutral) short circuited
42 DSP communication failure None
16
Inverter C output(line to
neutral) short circuited
43 Overload
17
Inverter AB output (line to
line) short circuited
46 UPS model abnormal None
18
Inverter BC output (line to
line) short circuited
47 MCU communication failure None
19
Inverter CA output (line to
line) short circuited
4!!