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UPS5000-S-880 kVA
User Manual (CMI)
4 User Interface
Issue 02 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
107
Item
Description
Default Value Value Range
check the fan running status.
Air filter
maintenance
period (d)
Specifies the rack air filter
maintenance interval. If you set
this parameter to
0
, there is no
reminder.
0
0–365
Intra-rack
power module
start delay (s)
The two parameters enable the
UPS to control the interval that
each rack (or module) transfers
from battery mode to mains
inverter mode, which reduces the
impact on the generator or power
grid. In the case of battery
undervoltage, the system
automatically shortens the delay
for transferring to mains inverter
mode to 1/8 of the normal delay
to accelerate the transfer and
prevent battery overdischarge.
The start delay of a module in a
rack varies depending on the rack
number and module number.
Module 1 in rack 1 does not have
a start delay.
The default
value of this
parameter
depends on the
default number
of power
modules. The
default value is
2.0, 1.0, and 0.5
for 1–5, 6–10,
and 10–20
power modules
respectively.
0.5–120.0
Inter-rack
power module
start delay (s)
5
2–120
NTC
The negative temperature
coefficient (NTC) resistor
monitors the ambient temperature
of batteries. It ensures that
batteries work reliably and
safely.
Disable
Disable, Enable
BCB trips if
UPS stops
power supply
Indicates whether the BCB trips
when the system stops supplying
power and the output power is
off.
Enable
Disable, Enable