B400R 1-3kVA User Manual
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5.2.5 HE mode (High Efficiency mode)
This is also referred to as economy (ECO) mode.
After the UPS is turned on, the power used by the load is supplied from the utility power via an
internal filter while the utility power is in normal range, so high efficiency can be obtained in the HE
mode. During mains failure or abnormality, the UPS will transfer to Line mode or Battery mode and
the load is supplied continuously.
1) This function can be enabled through the LCD settings or the UPS Management software,
Winpower.
2) It is Important that the transfer time of the UPS output from HE mode to battery mode is less than
10ms. Although this is a short transfer time it may be too excessive for some sensitive load.
5.2.6 Converter mode
When operating in converter mode, the UPS will operate with a fixed output frequency (50Hz or
60Hz). During mains failure or abnormality, the UPS will transfer to battery mode and the load is
supplied continuously.
Figure 5-7: HE Mode
Figure 5-8: Converter Mode
