UPS5000-A-500 kVA
User Manual (e-shelter)
4 User Interface
Issue 02 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
91
Item
Description
rectifier and inverter cannot automatically start. The default value
is
Enable
.
Bus overvolt.
recovery time
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) within
Bus overvolt. recovery time
. The default
value is
5s
.
Capacitor failure
detection
If this parameter is set to
Enable
, the inverter capacitor fault is
detected based on the values of
Capacitor failure detection
upper limit (A)
and
Capacitor failure detection lower limit
(A)
. If an inverter capacitor fault is detected, the power unit shuts
down the inverter to prevent the fault from escalating.
Capacitor failure
detection upper limit
(A)
The value range is 10 A to 13 A. The default value is 13 A.
When the inverter capacitor current exceeds the current specified
by this parameter, the power unit determines that the inverter
capacitor is faulty and shuts down the inverter.
Capacitor failure
detection lower limit
(A)
The value range is 0 A to 2.5 A. The default value is 2.5 A.
When the inverter capacitor current is lower than the current
specified by this parameter, the power unit determines that the
inverter capacitor is faulty and shuts down the inverter. If
Capacitor failure detection lower limit (A)
is set to 0 A, the
power unit does not detect inverter capacitor faults.
Figure 4-19
Advanced Param. screen 3
Item
Description
Input cur. limiting
Specifies whether to enable or disable input current limiting to
protect generators. The default value is
Disable
.
Input cur. limiting
ratio (%)
Limits the input current to protect the D.G. The value can be
50%–200%. The default value is 200%.
Zero display with no
If this parameter is set to
Enable
, the output current and output