Ups Internal Fault; Derating Power - Delta 3KVA User Manual

4-7 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 (section7) of this manual.
When the UPS inner component overheat, the UPS will protect itself by
thermo-switches. This status is so-called "O.T.P"
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").
When under (or over) bus voltage is happened in the UPS and is so-called "Bus
U.V.P" ("Bus O.V.P").
4-8 Storing the message into EEPROM
After low battery shutdown or fault, the UPS will store the message into EEPROM. The
UPS will auto-restart when the utility power is recovered. Shown as fig 4-10.

4-9 Derating power

In the range of 130Vac to 160Vac(or 65-80Vac), the UPS load capacity will decrease. This
function provides a wider operating power voltage range.
4-10 Programmable output (Optional)
User can use the monitoring software to control which receptacle can deliver power.
Fig 4-10 Store message in EEPROM
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