ABB HiPerGuard MV UPS User Manual page 60

60 H I P E R G U A R D M V U P S U S E R M A N U A L
The power flow in the MV UPS system is categorized into four system states.
System states SLD
Bypassed
Starting/Stopping
Power Conditioning
Mode
Independent Mode
—
Figure 7.06: Power flow
SLD categories on GDM.
7.1.4 System view
This screen is functional only for the MV UPS system with two up to ten UPS blocks connected in hard parallel.
Similarly, to the main screen, it shows input and output measurements but at system level.
This is a convenient way to control (Start/Stop) several units which are part of the same system through a single
command. The screen also displays the status of each UPS block, the state of charge of its energy storage, and the
position of the Abp (common for all UPSs connected in hard-parallel).
A "System Start/Stop" button is available on the left bottom side of the screen. When activated, this button will
Start/Stop all UPSs simultaneously as soon as the units are ready to operate. The function is available on all GDMs
which are part of the same UPS system. Optionally, the functionality can be disabled via parameter.
The system diagram shows the status of each MV UPS and also the state of charge of its energy storage.