Huawei UPS5000-E Series User Manual page 132

UPS5000-E-(50 kVA-125 kVA)
User Manual (Integrated UPS 3.0)
Input Parameter Settings
Figure 4-41 Input Parameter screen
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Issue 09 (2019-12-20)
It is recommended that you retain the default input parameter settings.
D.G. mode
Enable or disable D.G. mode. Set this parameter when a D.G connects to the input PDC.
Select Enable when a D.G. is detected over dry contacts.
D.G. power limiting (kVA) and D.G. charger power ratio (%)
Set these two parameters to control the valid input current and limiting input current,
preventing load impact and facilitating cooperation between the UPS and the D.G. The
D.G. power limiting (kVA) setting range is 0-5000 kVA. The D.G. charger power ratio
(%) value range is 0%-100%, and the default value is 0%
Intra-rack power module startup delay (s)
Control the time interval for each unit to transfer from battery mode to normal mode,
which reduces the impact on the D.G. or power grid. In the case of battery undervoltage,
the system automatically shortens the transfer delay to 1/8 of the normal delay to
accelerate the transfer and prevent battery overdischarge. The value can be 0.5-120
seconds, 5 seconds by default.
Input adaptability
The value of Input adaptability can be Strong (default) or Weak. Strong input
adaptability applies to the D.G. or input sources whose input current has high frequency
oscillation. In this mode, the total distortion of the input current waveform (THDi) is
poor, but the system is stable. Weak input adaptability is suitable for mains and AC input
sources.
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