Tescom TEOS Series - Fault Code

20
Bypass mode
Description
When input voltage is within acceptable range and bypass is enabled,
turn off the UPS and it will enter Bypass mode. Alarm beeps every two
minutes.
LCD display
Battery Test
Description
When UPS is in AC mode or CVCF mode, press “Test” key for more than
1s. Then, the UPS will beep once and start “Battery Test”. The line
between I/P and inverter icons will blink to remind users. This operation
is used to check the battery status.
LCD display
Warning status
Description
When the UPS has warning happened and it can work normally, LCD
panel will display warning codes. Most can display three warning code
and each number represent a warning condition, can from the form of
warning instructions (3-9) to know what kind of situation.
LCD display
Fault status
Description
When UPS has fault happened, it will display fault codes in LCD panel.
LCD display
3-8. Fault Code
Fault event
Fault code
Icon
Fault event
Fault code
Icon
Bus start failure
01
None
Low Inverter voltage
13
None
Bus over
02
None
Inverter output short
circuited
14
Bus under
03
None
Battery SCR short circuited
21
None
Bus unbalance
04
None
Over temperature
41
None
Inverter soft start failure
11
None
Overload
43
High Inverter voltage
12
None