Operating Mode Description; Faults Reference Code - CPI LD Series User Manual

3-6. Operating Mode Description

Operating mode Description
Online mode When the input voltage is within acceptable range, UPS will
provide pure and stable AC power to output. The UPS will also
charge the battery at online mode. .
ECO mode Energy saving mode:
When the input voltage is within voltage regulation range, UPS
will bypass voltage to output for energy saving. The UPS will
also charge the battery at ECO mode.
Frequency When input frequency is within 40 Hz to 70 Hz, the UPS can be
Converter mode set at a constant output frequency, 50 Hz or 60 Hz. The UPS
will still charge battery under this mode.
Battery mode When the input voltage is beyond the acceptable range or pow-
er failure, the UPS will backup power from battery and alarm is
sounding every 5 seconds. .
Bypass mode When input voltage is within acceptable range but UPS is over-
load, UPS will enter bypass mode or bypass mode can be set
by front panel. Alarm is sounding every 10 seconds.
Standby mode UPS is powered off and no output supply power, but still can
charge batteries.
Fault mode
When a fault has occurred, the ERROR icon and the fault code
will be displayed.

3-7. Faults Reference Code

Fault event
Bus start fail
Bus over
Bus under
Inverter soft start fail
Inverter voltage high
Inverter voltage Low
Inverter output short
CPI User Manual for Lithium Ion Online UPS
Fault code Icon
01 x
02 x
03 x
11 x
12 x
13 x
14 x
Fault event
Battery voltage too high
Battery voltage too low
Charger output short
Over temperature
Overload
Charger failure
Over input current
04/22v.1
LCD display
Fault code Icon
27 x
28 x
2A x
41 x
43
45 x
49 x
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