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ABB UPS PRODUCTS AND SOLUTIONS
The following table describes the UPS
status information:
—
4.2 Operating mode
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Table 9: Symbols in operating mode
Status Symbol Description
Online-mode
UPS is running through the inverter (online mode)
Battery-mode
Depending on the UPS load and number of extended battery modules (EBMs),
The alarm buzzer sounds every second
Bypass-mode
The power used by the load is supplied from the mains power via an internal filter.
Note that if there is a power failure and the UPS is in bypass mode, it will not transfer
back to mains or battery mode.
In bypass mode, the alarm buzzer will sound every two minutes.
Bypass without
output
UPS is running in bypass, but there is no power at the output.
ECO-mode
(HE: high
efficiency-mode)
After the UPS is turned on, the power used by the load is supplied from the mains (if its
power is within an acceptable range) via an internal filter. This guarantees higher UPS
efficiency. On mains failure, the UPS transfers to online mode or battery mode and the
load is supplied continuously.
Note: ECO mode can be enabled through the LCD settings or the monitoring software.
Warning:
and is not recommended for sensitive loads.
Converter-mode
failure, the UPS transfers to battery mode and the load is supplied continuously.
Note:
- Converter mode function can be enabled through the LCD settings or the
monitoring software.
Warning
Warnings indicate abnormal situations that do not stop the UPS from working. The UPS
Fault
In case of failure, the UPS may disconnect the load or transfer to bypass depending on
the cause of the failure. The UPS alarm sounds a continuous signal and the backlight of
Overload
When the UPS is in overload, an alarm sounds twice every second. Disconnect
percent of its nominal power capacity in order to stop alarming.
Battery test
UPS is performing a battery test.
Battery
disconnected
The battery is disconnected or defective. The UPS alarm sounds.
Parallel The system is running in parallel.
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