Huawei UPS5000-E Series User Manual page 122

UPS5000-E-(40 kVA-128 kVA)
User Manual (Integrated UPS 2.0)
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Issue 04 (2018-04-20)
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)
within Bus overvolt. recovery time. When Bus overvoltage recovery is set to Disable,
the bus overvoltage alarm cannot be automatically cleared, and the 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
The default value is Enable. When Capacitor failure detection is set to Enable, the
power module performs inverter capacitor fault detection based on the settings of
Capacitor failure detection upper limit and Capacitor failure detection lower limit.
If the power module determines that the inverter capacitor is faulty, it shuts down the
inverter to prevent the fault from expanding.
Capacitor failure detection upper limit (A)
The value range of Capacitor failure detection upper limit is 10–13 A and the default
value is 13 A. When the inverter capacitor current exceeds the current specified by this
parameter, the power module determines that the inverter capacitor is faulty and shuts
down the inverter.
Capacitor failure detection lower limit (A)
The value range of Capacitor failure detection lower limit is 0–2.5 A and the default
value is 2.5 A. When the inverter capacitor current is lower than the current specified by
this parameter, the power module determines that the inverter capacitor is faulty and
shuts down the inverter. If Capacitor failure detection lower limit is set to 0 A, the
power module does not perform inverter capacitor fault detection.
Input cur. limiting
This parameter specifies whether the UPS controls input current limiting. When this
parameter is set to Enable, electric generator overload due to excessively large input
current can be prevented. The default value is Disable.
Input cur. limiting ratio (%)
Limit the input current to protect the electric generator. The value range is 50%-200%,
and the default value is 200%.
No load output shows zero
When No load output shows zero is Enable, the system changes the value to 0 if there
is no load. The default value is Enable.
Cross current monitoring
Monitors the relative difference between inter-rack or inter-module currents. If the
parameter is set to Enable, you can view Mod. Cross Cur. and Rack Cross Cur. on the
running screen. The default value is Disable.
Bus Capa. Life
If Bus Capa. Life is set to Enable, the UPS5000-E detects the bus capacitor lifespan.
ModbusTCP Encryption
If Modbus TCP is used for communication, communication links do not implement
encryption or implement encryption based on the selected encryption mode.
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5 User Interface
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