BlueWalker PowerWalker VFI 10000TP 3/1 Manuel d'utilisateur télécharger pdf (Page 43)

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 the function.

6.1 HE Function

6.1.1 Brief Introduction of HE Function

If HE function is set to enable, after the UPS is turned on, the power

used by the load is directly supplied from the utility power via internal

filter while the utility power is in normal range, so the high efficiency

could be gained in HE mode. It is also called economy mode. Once the

mains is 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 >0.97 of UPS, to save power

for 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 utility; 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 utility power is unstable.

6.2 Converter Function

6.2.1 Brief introduction of Converter function

In converter mode, the UPS would free run with fixed output

frequency (50Hz or 60Hz). Once the mains is loss or abnormal, the

UPS would transfer to Battery mode and the load is supplied

continuously.

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BlueWalker PowerWalker VFI 10000TP 3/1 Manuel d'utilisateur Page 43