UPS5000-A-500 kVA
User Manual (e-shelter)
2 Overview
Issue 02 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
22
Indicator
Color
Status
Description
Off
This ECM is not ready or the CPLD of
this ECM is being upgraded.
Blinking at 4 Hz
The DSP of the ECM is being upgraded or
not configured.
ALM
Yellow
Steady on
The ECM has a minor alarm, but it does
not need to be replaced.
Off
The ECM has no minor alarm or the DSP
of the ECM is being upgraded.
FAULT
Red
Steady on
The ECM has a critical alarm.
Off
The ECM has no critical alarm or the DSP
of the ECM is being upgraded.
2.4.3 Dry contact card
Appearance
Figure 2-11
Dry contact card
Table 2-4
Ports on the dry contact card
Silk Screen
Description
Status
Initial Status
BTG
Port for detecting battery
grounding faults
Connected: battery
grounding fault
Disconnected: no
battery grounding
fault
Disconnected
0V
Port for signal ground
GEN
Port for detecting diesel
generator (D.G.) mode
Connected: D.G.
mode
Disconnected:
non-D.G. mode
Disconnected
0V
Port for signal ground
BCB_OL
Port for detecting the BCB
box
Grounded: BCB
box connected
Disconnected:
BCB box not
Grounded