User`s manual

D:\manual\UM_PCM-ULT\ML_Ult3k\661-UT3K-002-31.doc

KEVIN KU 第 6 頁 2003/3/4

1. P

RESENTATION

Front LED Panel

Front LCD Panel

1.1 “LINE” indicator

The indicator illuminates when the line input voltage is normal.

1.2 “BY PASS” indicator

The indicator illuminates when the loads are supplied from the utility power, through the

by-pass direction.

1.3 “INV” or “INVERTER” indicator

The indicator illuminates when the output power of UPS is supplied from the inverter circuit.

1.4 “BACKUP” indicator (LCD Panel only)

The indicator illuminates when the power is supplied from the batteries.

INVERTER