Huawei UPS5000-A-400K-SL User Manual page 120

UPS5000-A-(400 kVA-500 kVA)
User Manual (40 kVA Power Modules)
Figure 4-24 Input Param.




Output Param.
Figure 4-25
Issue 06 (2020-01-10)
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 (%)
Control the input current and current limiting value to address instantaneous load impact
and to enhance the work with the D.G. The D.G. power limiting value range is 0–5000
kVA, and the default value is 500 kVA for the UPS5000-A-400 kVA and 600 kVA for the
UPS5000-A-500 kVA. The D.G. charger power ratio value range is 0%–100%, and the
default value is 0%.
Intra-rack power unit start delay (s) and Inter-rack power unit start delay (s)
Control the time interval for each rack (or 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 2–
120 seconds, 5 seconds by default. The delay depends on the rack number and unit
number. Unit 1 in rack 1 has no start delay.
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.
shows the Output Param. screen.
Copyright © Huawei Technologies Co., Ltd.
4 User Interface
112