CertaUPS C400R-010-B, Руководство по установке

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5.4.7 The setting menu
Please contact your local distributor for further information before using the
settings. Some settings will change the specification and enable or disable
some functions. An incorrectly configured UPS may result in potential
failures or protecting function loss, even directly damage the load, battery
or UPS.
6. Special function
The C400R series UPS has special features which can add additional features
to the operation of the UPS. These functions have their own features, please
contact your local distributor for further information before using them.
6.1 HE function
6.1.1 Brief introduction of HE function
If the HE function is enabled, the UPS powers the load directly from main
power via internal filter while mains power is normal. This is also referred
to as economy mode. Once the mains is lost or abnormal the UPS will
transfer to Line mode or Battery mode and the load supported via battery
power. The benefit is overall high efficiency of >0.96 which in turn reduces
power consumption. The disadvantage is

The load can’t be protected as well as in Line mode as the load is directly
supplied from the mains power.

The transfer time of the UPS load from HE mode to Battery mode is about
10ms. So the function is not suitable to some sensitive loads, or regions
where mains power is unstable.
6.1.2 Set the function
The function could be enabled through the LCD setting in Bypass mode or
Standby mode.