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6. Special function
The B500 series UPS has some features, which could provide for
special user applications. These functions have their own features,
please contact your local distributor for further information.
6.1 HE function
6.1.1 Brief introduction of HE function
If the HE function is enabled, the power used by the load is supplied
directly from the mains power via an internal filter whilst the utility
power is in normal range. This enables the high efficiency to be
gained in HE mode. HE mode is sometimes referred to as “Eco
mode”
. Once the mains power is lost or abnormal, the UPS will
transfer to Line mode or Battery mode and the load is supplied
continuously.
This system results in an overall high efficiency
≥
0.96 of UPS, this
will save power for the user.
Due to the load being connected directly to the mains supply the
protection provided does not include any form of isolation. This
means that any mains spikes etc. that are on the mains supply are
passed through to the equipment connected.
This method of operation, whilst offering exceptional efficiencies,
will take approximately 10ms to switch to the battery mode. This
means that whilst this mode of operation is suitable for a majority of
loads, it could prove to be unsuitable for highly sensitive loads and
for areas with highly unstable mains supply.
6.2 Converter function
6.2.1 Brief introduction of Converter function
6.2.1 Brief introduction of Converter function
In converter mode, the UPS will free run with fixed output frequency
(50Hz or 60Hz). Once the mains power is lost or abnormal, the UPS
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