UPS5000-E-(50 kVA-300 kVA) 
User Manual (50 kVA Power Modules) 
 
Huawei Proprietary and Confidential                                     
Copyright © Huawei Technologies Co., Ltd. 
 
Alarm 
ID 
(Alarm 
ID-Caus
e ID) 
of 
redundant 
racks is 
incorrect. 
 
The load 
is 
excessive. 
 
The 
configure
d number 
of 
redundant 
modules 
is 
incorrect. 
1.  Reduce the load. 
2.  Decrease the configured number 
of redundant modules. 
 
The ECO 
bypass 
voltage or 
frequency 
is out of 
the preset 
range. 
 
The ECO 
bypass 
voltage or 
frequency 
range is 
incorrectl
y set. 
 
The 
bypass 
input 
sequence 
is reverse 
or the 
neutral 
wire is 
disconnec
ted. 
1.  Check the bypass input voltage 
and frequency. 
2.  Check that the rated voltage, 
rated frequency, ECO bypass 
voltage range, and frequency 
range are correctly set. 
3.  Check that the bypass cables 
and circuit breakers are 
correctly connected. 
Bypass 
current not 
shared 
 
The 
output 
and input 
circuit 
breakers 
are OFF. 
 
The 
1.  Check that the output and 
bypass input circuit breakers on 
each rack are ON. 
2.  Check that bypass input and 
output power cables on each 
rack meet the length 
requirements.