Commissioning Sageon Micro Power Module Manual
PM990-4207-00, Rev. 6
3-4
The switched battery cables (negative in a –48V system) terminate on the copper bars of the battery distribution
module (item 2 in Figure 2.), while the battery return cables terminate on the common return bar (item 3 in Figure
2.). The battery distribution module can be configured for up to four battery strings with the appropriate number of
return cable termination points being available on the common bar.
Load switched connections can be made either through the optional load circuits that can be installed in the battery
distribution module, or as bulk load connections to the main rectifier bus bars. The load return is then terminated
either on the common return bar or on the rectifier common bus bars. External DC distribution feed connections are
made as a bulk load connection.
In many cases, the AC distribution is external to the Power shelf. The AC feed should be wired as individually
protected feeds for each rectifier (recommended and preferred) to provide discrimination of fault protection devices.
Alternatively, a single AC supply (1 phase or 3 phase) can be used, but there will not be any discrimination and if
one unit generates a fault, the power to all rectifiers will be removed. Where the AC distribution is integrated into
the Power shelf, each rectifier feed is individually protected and the installer is only required to connect a single AC
supply (1 phase or 3 phase) to the AC DIN rail terminations.
Remote communications and alarm relay cabling connects to the top rear cover. Allow enough free cable to permit
the top cover to hinge open or to remove the Power shelf from the front of the rack for maintenance.
3.3 MAINS CONNECTIONS
Figure 3.4 AC Feed Terminations
3.3.1 Factory Supplied Configurations
Power shelves without internal AC distribution (3RU System), unless specially ordered, are configured with each
rectifier active line being terminated in an individual DIN rail terminal block (beige) and the remaining AC line is
To Next Page
Loading...
Need help?
Input Power