precautions while using ups

The UPS inverter power modules continuously supplies the critical AC load. The rectifier charger derives power from the AC mains input source and supplies DC power to the inverter while simultaneously FLOAT or BOOST charging its associated backup battery.

Upon failure of the AC mains input power; the inverter power modules, which obtains power from the battery, supplies the critical AC load. There is no interruption in power to the critical load upon failure. After restoration of the AC mains input power, theNormal Mode operation will continue automatically without the necessity of user intervention.Note UPS can also be started through battery (charged) mode via battery cold start function upon failure of the AC mains. Therefore, the battery power can be used independently to improve the utilization rate of UPS.

Upon failure of the AC mains input power; the inverter power modules, which obtains power from the battery, supplies the critical AC load. There is no interruption in power to the critical load upon failure. After restoration of the AC mains input power, theNormal Mode operation will continue automatically without the necessity of user intervention.Note UPS can also be started through battery (charged) mode via battery cold start function upon failure of the AC mains. Therefore, the battery power can be used independently to improve the utilization rate of UPS.

A manual bypass switch is available to ensure continuity of supply to the critical load when the UPS becomes unavailable e.g.during a maintenance procedure.Note This manual bypass switch is fitted in all UPS modules. Transfer UPS system to bypass module for power supply first,then close maintenance bypass switch Q2, followed by Q1 and Q3.

If economical (ECO) mode is selected, the double conversion UPS will stop to work so as to save energy. During the operation of ECO mode, the load power will be supplied by bypass preferentially. When bypass power is within the range of normal frequency and voltage, load power will be supplied by bypass, or the system will transfer to inverter input, followed by load power interruption which extends within 3 4 of the utility period. E.g. when the frequency is 50Hz, the interruption time will be less than 15ms; when the frequency is 60Hz, the time will be less than 12.5ms.

The UPS system only has a maintenance bypass isolating switch, and all the other transfers are processed automatically by internal control logics.

The LEDs shown on the mini current path represent the various UPS power paths and show the current UPS operating status.The status description of indicators is shown in table 4 2.

Following the self check of UPS LCD display, the main LCD display is shown as fig 4 2, which can be divided into three display windows system information, data command and current record.

On products that have voltage select switches, make sure that the switch is set for the type of voltage you use (115 VAC or 230 VAC).Do not attempt to power the product with voltage converter kits sold for appliances.