UPS5000-A-400 kVA
User Manual (50 kVA, PF=0.9)
4 Installation Verification
Issue 03 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
112
Figure 4-24
Advanced Param. screen 3
Working mode
The value can be
Normal mode
(default),
Converter mode
,
Self-load mode
, or
ECO
.
BSC mode
−
The value can be
Non-BSC mode
(default) or
BSC mode
. The latter is set when the
system is a dual-bus system.
−
A dual-bus system consists of one master and one slave BSC system. You can
specify them during initial startup and change the settings under the guidance of
maintenance engineers. Set the master and slave BSC systems to master and slave
BSC modes respectively.
−
Ensure that the BSC signal cable between the master and slave BSC systems is
properly connected and that BSC-related hardware is properly installed.
Amb. temp. alarm thresh. (°C)
An alarm is generated when the ambient temperature reaches the preset value.
EOD restart
Specifies whether the UPS starts automatically when the mains recovers after the UPS is
disconnected due to battery EOD. If the parameter is set to
Enable
, the UPS starts
automatically.
If the parameter is set to
Disable
, you need to rectify the fault and start the UPS
manually or set the parameter to
Enable
.
EOD restart delay (min)
If
EOD restart
is set to
Enable
, the UPS starts working after
EOD restart delay
when
the mains recovers from an EOD power failure. The value range is 1–1440 min, and the
default value is 10 min.
Inverter async. alarm
Specifies whether the
Inverter async.
alarm is displayed when the inverter does not
track the bypass input. The normal power supply is not affected no matter whether you
set the parameter to
Enable
or
Disable
.
Bus overvoltage recovery
Specifies whether to automatically clear the alarm and restart the power module when
the rectifier or inverter shuts down due to a bus overvoltage alarm. If
Bus overvoltage
recovery
is set to
Enable
, the bus overvoltage alarm is automatically cleared, and the
rectifier and inverter automatically start when the bus voltage recovers (less than 420 V)