Huawei UPS5000-S-400K-SM User Manual page 58

UPS5000-S-(350 kVA-800 kVA)
User Manual
Figure 2-24 ECM
Table 2-4 Ports on the ECM
Silk Screen
PARALLEL
BSC
Table 2-5 Indicator description
Indicator
NORMAL
ALM
FAULT
Issue 12 (2023-05-26)
Description
The PARALLEL port transmits parallel signals between racks.
The BSC port is used in a dual-bus system to synchronize
output frequencies and phases between UPS systems, ensuring
that two buses can switch with each other.
BSC cables are hot-swappable.
NO TE
For a single UPS, the parallel cable is not needed.
Color
Green
Yellow
Red
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Status Description
Steady on This ECM is the active ECM.
Blinking at This ECM is the standby ECM and it is
0.5 Hz ready.
Off This ECM is not ready or the software of
this ECM is being upgraded.
Blinking at 4 The software of the ECM is being
Hz upgraded or not configured.
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
software of the ECM is being upgraded.
Steady on The ECM has a critical alarm.
Off The ECM has no critical alarm or the
software of the ECM is being upgraded.
2 Product Overview
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