Emerson U /400/S/6P, U/300/S/12P, U /400/S/12P, U/300/S/6P, 400KVA, 200, 160 UPS Alarm Message List

Chapter 4 Operator Control And Display Panel 35

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

HIPULSE U UPS Single Module And “1+N” (Expandable) 160/200/300/400kVA User Manual