PowerWalker VFI 10000TCP 3_1 - Manual (Page 31)

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Fig 5-7
High Efficiency Mode:
After the UPS is turned on, the power used by
the load is supplied from the utility power via
internal filter while the utility power is in
normal range, so the high efficiency could be
gained in the HE mode. Once the mains is loss
or abnormal, the UPS would transfer to Line
mode or Battery mode and the load is
supplied continuously.
1)
The function could be enabled through
the LCD setting or the software
(Winpower, etc.).
2) It is attention that the transfer time of
UPS output from HE mode to battery
mode is about 10ms. But it is still too
long for some sensitive load.
Fig 5-8
Converter mode
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.
1) The function could be enabled through
the LCD setting or the software
(Winpower).
2) The load should be derated to 60%
when running in converter mode with
single phase input, and there is no
derating with three phases input.
Fig 5-9
Warning:
When the warning occurs, it illustrates that
there are some abnormal problems during the
operation of UPS. Normally the problems are
not fatal and the UPS continues working, but
they should be paid attention to, or the UPS
may fail.