Specifications

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3-13 UPS internal fault
If the following conditions occur, the UPS fails. At this time the UPS will transfer
to “BYPASS mode”. The bypass LED and fault LED will light on and alarm
continuously. If utility is too low or too high the UPS output will be disabled. For
fault messages, please refer to the troubleshooting (section 6) of this manual.
9 When the UPS inner components overheat, the UPS will protect itself by
thermal switches. This status is so-called “O.T.P”. Show as Figure 3-13.
When the UPS fan is failure. It is show as Figure 3-14.
9 When under (or over) voltage is happened in the UPS output. This kind of
fault will be detected by the microprocessor in the UPS and is so-called
“U.V.P” (“O.V.P”). Show as Figure 3-15, 3-16.
9 When under (or over) bus voltage is happened in the UPS and is so-called
“Bus U.V.P” (“Bus O.V.P”). Show as Figure 3-17, 3-18.
FAULT
BYPASS
LINE
ONLINE
100%
75%
50%
25%
LOAD
BATT.
BATT. LOW
ON BATT.
REPLACE
BATT.
ON
TEST
OFF
UNINTERRUPTIBLE POWER SUPPLIES
OVERLOAD
FAULT
BYPASS
LINE
ONLINE
100%
75%
50%
25%
LOAD
BATT.
BATT. LOW
ON BATT.
REPLACE
BATT.
ON
TEST
OFF
UNINTERRUPTIBLE POWER SUPPLIES
OVERLOAD
FAULT
BYPASS
LINE
ONLINE
100%
75%
50%
25%
LOAD
BATT.
BATT. LOW
ON BATT.
REPLACE
BATT.
ON
TEST
OFF
UNINTERRUPTIBLE POWER SUPPLIES
OVERLOAD
Figure 3-16
(Inverter O.V.P.)
Figure 3-17
(DC BUS U.V.P.)
Figure 3-15 (Inverter U.V.P.)
Figure 3-14 (Fan Fail)
Figure 3-13 (O.T.P.)
Figure 3-17
(DC BUS O.V.P.)
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