Vertiv Liebert APM 300, Руководство пользователя

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Chapter 4 Operator Control And Display Panel 35
APM 300 Integrated UPS Single Module And Parallel System User Manual
Alarm Explanation
Load Impact Transfer
A transfer to bypass occurred due to a large step load. The UPS can recover automatically.
Turn on the load equipment in stages to reduce the load impact on the inverter
Transfer Time-out
The load remains on bypass power owing to excessive number of transfers that occurred
within the last hour. The UPS can recover automatically and will transfer the load back to
inverter power within an hour
Load Sharing Fault The UPSs in a parallel system are not sharing the load current correctly
DC Bus Abnormal
The DC bus voltage is abnormal and results in inverter shutdown. The load transfers to
bypass
System Transfer
All UPSs in the parallel system transfer to bypass at the same time when one of them needs
to transfer to bypass. This message appears on the LCD of the UPS with passive transfer to
bypass
DC Bus Over Voltage
The rectifier, inverter and battery converter shut down because the DC bus voltage is too
high.. Check if the rectifier has any fault. If no, check if an overload has occurred. Restart
the inverter after the fault is cleared
Bypass Over Current The bypass current is above 135% of the rated current. The UPS alarms but has no action
LBS Active
The LBS setting is active. The UPS is acting as an LBS master or slave in a dual bus
configuration
Mains Neutral Lost The neutral line of the AC input mains is not detected
Battery ground fault
The battery ground fault option has detected a battery ground fault. Contact the local
customer service center of Emerson to inspect the battery installation
Manual Turn On
INVERTER ON key activated on the operator control and display panel to turn on the
inverter
Manual Turn Off
INVERTER OFF key activated on the operator control and display panel to turn off the
inverter
EPO The local or remote EPO has been activated
Interrupted Transfer
Confirm A prompt for the user to decide whether to press the Enter key to acknowledge an
interrupted load transfer to bypass
Transfer Cancel
A prompt for the user to decide whether to press the ESC key to avoid an interrupted load
transfer to bypass
Unit Risk Off Confirm
A prompt for the user to decide whether to press the Enter key to shut down a UPS in the
parallel system
Parallel System Risk Off
Confirm A prompt for the user to decide whether to press the Enter key to shut down the parallel
system
Fault Reset FAULT CLEAR key pressed
Alarm Silence SILENCE ON/OFF key pressed
Turn On Fail
The inverter failed to turn on when the INVERTER ON key is pressed. This may be the result
of an invalid operation (maintenance bypass on) or DC bus or rectifiers not ready
Audible Alarm Reset FAULT CLEAR or SILENCE ON/OFF key pressed
Bypass Mode The UPS is in bypass mode
Normal Mode The UPS is in normal mode
Battery Mode The UPS is in battery mode
Source share mode The inverter is supplied by the battery and rectifier at the same time
UPS Shutdown UPS shutdown with no output power
BCB Open BCB state (open)
BCB Close BCB state (closed)
Batt. Float Charging Battery state (float charge mode)
Batt. Boost Charging Battery state (boost charge mode)
Battery Discharging Battery state (discharge mode)
Battery Period Testing The battery is under automatic periodic battery maintenance test (20% capacity discharge)
Batt. Capacity Testing The user initiated a battery capacity test (100% capacity discharge)