OPERATION
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Z800-3000_usermanual_engl_updated_202001.docx
If the supply network is restored after the UPS system has shut down,
the UPS is automatically restarted. The batteries are charged up and
the load connected are supplied with power.
Standby mode
If the UPS system is switched off and the power supply cable is con-
nected, the UPS system works in standby mode. The following display
appears:
Figure 17: Display in standby mode
No power is available for the load connected. The battery is charged
if necessary.
Buck & Boost mode
If the input voltage is greater than the maximum tolerance, the UPS
system switches into buck mode. The output voltage is reduced to a
non-critical level electronically, without using the batteries.
Figure 18: Display Buck & Boost mode display
Boost mode evens out insufficient input voltage electronically, without
using the battery. The output voltage is raised to a non-critical level for
the load connected.
