Chapter 4 Operations
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SM 180-600 KMFX User Manual
Warning
Before making this operation, read messages on LCD display to be sure that bypass
supply is regular and the inverter is synchronous with it, so as not to risk a short
interruption in powering the load.
Danger
If you need to maintain the power module, wait for 10 minutes to let the DC bus
capacitor fully discharge before removing the cover.
4.2.5 Switching the UPS into Normal Mode from Maintenance Bypass Mode
These following procedures can transfer the load from the Maintenance Bypass mode to
inverter output.
1. The bypass turns on 30S after the LED touch screen goes on, the bypass indicator goes
green and the load is powered through maintenance bypass and static bypass.
2. Turn off the maintenance bypass switch and the load is powered through bypass. The
rectifier starts followed by the inverter.
3. After 60S, the system transfers to Normal mode.
4.3 Battery Maintenance
If the battery is not in use for a long time, it is necessary to test the condition of the battery.
Two methods are provided:
1. Manual Discharging test. Enter the menu Operate
，
as is shown in Fig.5-4 and touch the
icon “Battery maintenance”
，
the system transfers into the Battery mode for
discharging. The system will stop discharging when the battery will have 20% of capacity or
in low voltage. Users can stop the discharging by touching the “Stop Test” icon
.
Fig.4-4 Battery maintenance
