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Chapter 4 Operator Control And Display Panel 35
HIPULSE U UPS Single Module And “1+N” (Expandable) 160/200/300/400kVA User Manual
4.4 UPS Alarm Message List
Table 4-8 provides the complete list of UPS alarm messages supported for display either on the Records menu
(historical data) or in the current record window (prevailing data) as described in 4.1.5 Detailed Description Of Menu
Items.
Table 4-8 UPS alarm message list
Alarm message Description
Rectifier comm. fail Internal RS485 communication failure between monitor and rectifier
Mains volt. abnormal
Mains Voltage exceeds the upper or lower limit and results in rectifier shutdown. Check the input
line-to-neutral voltage amplitude of rectifier
Mains undervoltage Mains voltage is undervoltage. Check the input line voltage
Mains freq. abnormal
Mains frequency is out of limit range and results in rectifier shutdown. Check the input voltage and
frequency
Battery fuse fail Battery fuse flowout led to BCB tripping
Rectifier block Rectifier detected faulty. Rectifier shuts down. Battery discharges
Rectifier overtemp.
The temperature of heat sink is too high to keep the rectifier running. The UPS can recover
automatically. Check the environment and ventilation
Input fuse fail Input fuse blowout led to rectifier turning off
Control power 1 fail UPS operates but Control Power is not available
Control power 2 fail UPS operates but Redundant Control Power is not available
Mains phase reversed Rectifier AC input phase sequence is reversed
Rectifier current limit Rectifier overcurrent led to power limiting operating
Soft start fail Rectifier could not start due to low DC bus voltage
Input filter fault Filter inductor overtemperature led to filter contactor tripping
Filter contactor fault Filter contactor operation abnormal
Filter overcurrent
Mains power outside the normal voltage or frequency range of the input passive filter results in filter
overcurrent. Please find out the reason for the mains power abnormality
REC drive cirtuit fault Rectifier being off due to improper connection of rectifier drive cable or rectifier type setting error
REC input Ph. missing Rectifier input phase missing. Check the input power connection or if the mains power is abnormal
DC bus over voltage
Rectifier and inverter were shut down because DC bus voltage is too high. Check whether there is a
fault in rectifier side
Bus capacitor overvolt
Bus capacitor voltage exceeds 350V, rectifier is off. Check the voltages of the two groups of bus
capacitors
EPO Emergency Power Off direct access key pressed or external command received
Input disconnect open Rectifier input switch open
Input disconnect closed Rectifier input switch closed
Normal mode Load supplied from inverter output through double conversion of the AC mains input supply
Source share mode
Load supplied from inverter output through shared double conversion of the AC mains input supply
and of the Battery supply
PPF online Reactive input filter connected
PPF disconnecting Reactive input filter disconnected
Battery mode Load supplied from inverter output through battery
No battery
Check the battery and the battery wiring; check whether the BCB is closed and the BCB dry contact
is connected
Auto start After UPS was shutdown at EOD, inverter auto starts when utility restore
Generator connected The generator has been connected to the UPS
BCB open Battery Circuit Breaker status (open)
BCB closed Battery Circuit Breaker status (closed)
Battery float charging Battery status (Float charge mode)
Battery boost charging Battery status (Boost charge mode)
Battery discharging Battery status (discharge mode)
Battery period testing Automatic periodic battery maintenance discharge test (20% capacity discharge)
Batt. capacity testing User initiated battery capacity discharge test (100% capacity discharge)
Batt. maint. testing User initiated maintenance discharge test (20% capacity discharge)
UPS system testing User initiated system test
Inverter in setting Inverter starting up and synchronizing
Rectifier in setting Rectifier starting up and synchronizing
Battery Room Alarm Environment in Battery Room Needs Attention