Unique Broadband Systems Ltd. DRU2KW Manual Do Utilizador

Manual No. x75mk3-11

x75-man-Rev11-0815.indd

85-264VAC is supplied directly to each of the rectifiers which produce a nominal +12VDC 

output.

B  Following a current shunt to measure the rectifier current, the rectifier DC output is fed 

to the battery terminals via a current battery current shunt and a 100A circuit breaker.

  The rectifier DC output is also fed to the loads via the LVD (Low Voltage Disconnect, 

and 5 circuit breakers.

  The management unit monitors and controls the rectifiers via an I²C interface and also 

checks the status of the DC load and battery breakers.

E  The management unit monitors external sensors and provides alarms.

This unit incorporates an external temperature shutdown feature which is enabled on 

the controller site installation web page (see section 13.4).

  If the temperature at the external temperature sense point goes below -10°C or above 

+65°C a shutdown sequence is initiated.  Once the external temperature returns to 

within these limits the system initiates an automatic restart sequence.