Epcom Power Line
18
| RT Series True Online UPS
RT Series True Online UPS |
19
Operation Mode and LCD Display
Description
CUCF Mode
Frequency conversion mode is mainly to provide a
stable voltage and frequency (mainly in terms of
frequency). After starting this mode, its output will not
be affected by utility to meet input needs of some
precision equipment and make users’ load more stable
and secure. After opening CUCF mode setup, LCD
displays ‘CUCF’. Under the CUCF mode, when the
output frequency is set to 50HZ, the load capacity
decreased to 80% of the original volume; when the
output frequency is set to 60HZ, the load capacity
decreased to 70% of the original capacity. The output
frequency is fixed with the setting values, it doesn’t
vary with utility change. And the UPS can not be set to
going bypass under this mode.
Fault Mode
When UPS has a failure, the buzzer beeps and the
UPS turns to fault mode. UPS cuts off the output and
LCD displays fault codes. At the moment, users can
press the mute key to make the buzzer stop beeping
temporarily to wait for maintenance. Users can also
press the OFF key to shut down the UPS when confirm
that there is no serious fault.
6. Fault Messages
Table 1: Fault Code Messages
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) short
yes
50, 51, 52, 53, 54
Overload
yes
55, 56, 57, 58, 59
Line NTC break
yes
60, 61, 62, 63, 64
Shutdown fault
yes
65, 66, 67, 68, 69
AC input fuse open
yes
unused
70, 71, 72, 73, 74
Communication fault
yes
unused
75, 76, 77, 78, 79
Communication fault
yes
80, 81, 82, 83, 84
Relay fault
yes
85, 86, 87, 88, 89
AC input SCR fault
yes
unused
90, 91, 92, 93, 94
CAN fault
yes
