Toshiba reliability in motion 1000 Manual De Usuario

 

 

4

Alternating between bypass and on-line modes is achieved automatically and in 

accordance with the conditions of the utility power. On-line mode may be used during 

times of utility power irregularities. The bypass mode should be used when power flows 

smoothly in order to obtain the greatest efficiency. Irregularities can be detected in less 

than a second and the on-line mode can be reactivated immediately. Switching back to 

online mode occurs when the input voltage exceeds ±10% (or ±15% selectable), when 

the input frequency exceeds ±3Hz, or when no input line is available. 

Although high efficiency is standard, the default operation is the on-line mode. From 

the LCD display panel, Bypass can be activated as required or On-line operation can be 

run permanently if preferred. 

Free run mode is a mode of operation in which the output frequency does not match 

input frequency. The UPS operates in free run mode when the input frequency is outside 

of the selected input frequency range. When starting the UPS, the targeted frequency is 

50 or 60 Hz ±0.25Hz. Refer to Section 4.3 to set up bypass availability while running in 

free run mode. 

When the UPS is started, a diagnostic test is executed automatically that checks the 

electronics and battery, and reports any problems on the LCD display. 

The advanced battery management system monitors the performance of the battery and 

will indicate if battery replacement is required. The battery management system tests 

the battery every 30 days of normal mode operation. A battery discharge test is 

performed and reports any problems on the LCD display. 

Except during the first 24 hours after startup while the UPS is in charging mode, 

diagnostic tests can be performed manually from the front panel when required. 

The UPS device and the internal backup battery make up the system. Depending on the 

site and load requirements of the installation, available options may be utilized to create 

a tailored solution.