23
When the input mains meets the input range of the ECO mode and the ECO function is on, the UPS will
works in ECO mode. If input AC mains exceed the range of ECO several times within one minute but stays in
inverter input range, UPS will work in AC inverting mode automatically.
Note: On ECO mode, when the UPS switches to Inverter mode (including Line mode and BAT mode) from
ECO mode, 15ms interrupt probably be happened.
5.5 Fault mode
LED indications on front panel in Fault mode are as following: warning red LED is on and LCD display fault
code and related icon.
Fault mode (LCD interface on which the fault code display)
When UPS has faulted. The warning LED is on and the buzzer beeps. UPS will turn to fault mode. UPS cuts
off the output and LCD display fault codes. At the moment, you can press the mute key to make the buzzer
stop beeping temporarily to wait for maintenance. You can also press the OFF key to shut down the UPS
when confirmed that there is no serious fault.
6. The warning code list of the LED light and display panel
Appendix 1: The table of the fault code
Fault code
Fault type
Bypass output
Note
0
、
1
、
2
、
3
、
4
Bus high
Yes
5
、
6
、
7
、
8
、
9
Bus low
Yes
10
、
11
、
12
、
13
、
14
Bus unbalance
Yes
15
、
16
、
17
、
18
、
19
Bus soft start fail
Yes
20
、
21
、
22
、
23
、
24
Inverter soft start fail
Yes
25
、
26
、
27
、
28
、
29
Inverter high
Yes
30
、
31
、
32
、
33
、
34
Inverter low
Yes
35
、
36
、
37
、
38
、
39
Bus discharge fail
Yes
40
、
41
、
42
、
43
、
44
Over heat
Yes
45
、
46
、
47
、
48
、
49
OP(inverter) shorted
No
50
、
51
、
52
、
53
、
54
Overload
Yes
55
、
56
、
57
、
58
、
59
Negative output power
Yes
