6. Special Function
The series UPS has some special functions, which could satisfy some special application of
user. And the functions have own features, please contact your local distributor for further
information before using thefunction.
6.1 HEFunction
6.1.1 Brief introduction of HEfunction
If HE function is set to enable, after the UPS is turned on, the power used by the load is directly
supplied from the mainspower via internal filter while the utility power is in normal range, so
the high efficiency could be gained in HEmode. It is also called economy mode. Once the
mainspoweris loss or abnormal, the UPS would transfer to Line mode or Battery mode and the
load is supplied continuously.
The great virtue is overall high efficiency ≥0.96 of UPS, to save powerfor user.
But the disadvantage is 1) the load can not be protected as well as in Line mode, for the load
is directly supplied from the mains; 2) the transfer time of UPS output from HE mode to Battery
mode is about 10ms.
So the function is not suitable to some sensitive loads, and the region where the mains power
is unstable.
6.1.2.1 Set the function
The function could be enabled through the LCD settingin Bypass mode.
Enter the power strategy setting menu by following chapter of 5.4.7.
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