1K/1.5K/2K/3KVAIntelligent True On-Line UPSFor Corporate & IT UserUser manual1Table of Contents1. Important Safety Instruction....................................................................21.1. An Important Notice................................................................................21.2. Storage Instruction .................................................................................32. Product Introduction ...............................................................................42.1. General Characteristics ..........................................................................42.2. Special Features.....................................................................................53. UPS Functional Descriptions..................................................................63.1. UPS Front Panel Display Descriptions...................................................63.2. Real Panel Descriptions .........................................................................93.3. Operating Modes & Voltage System Configurations............................113.4. Communication Port Explanation .........................................................154. Installation and Operation.....................................................................174.1. Unpacking.............................................................................................174.2. Selecting Installation Position...............................................................184.3. Set up ...................................................................................................194.4. Operation ..............................................................................................235. UPS Working Principle .........................................................................365.1. UPS System Block Diagram.................................................................365.2. When Utility is Normal ..........................................................................375.3. When Utility is Abnormal/Absent ..........................................................385.4. Overload Condition...............................................................................395.5. Inverter Failure .....................................................................................405.6. Inverter/Internal Over temperature .......................................................415.7. Inverter Over.........................................................................................416. Maintenance Guide ..............................................................................426.1. Trouble Shooting ..................................................................................426.2. Error Codes and Their Descriptions .....................................................446.3. Maintenance .........................................................................................457. Bundle Software Installation Guide ......................................................467.1. Hardware Installation............................................................................467.2. Software Installation .............................................................................468. Optional Communication Cards ...........................................................478.1. R2E (2nd RS-232 ) card .......................................................................478.2. USE (USB) card ...................................................................................478.3. DCE (Dry Contact) card........................................................................488.4. SNMP Cards.........................................................................................499. Specifications .......................................................................................50