Unique Broadband Systems Ltd. DRU2KW User Manual

Manual No. x75mk3-11

x75-man-Rev11-0815.indd

K1-8 – Dry contact relays with changeover contacts.  X75 uses K1-4 only.
MAJ LED – LED indicating a major alarm.  This is the red LED on the front panel 

display.
MIN LED – LED indicating a minor alarm.  This is the yellow LED on the front 

panel display.
ACF LED – LED indicating an AC Failure.  This LED is not present on the controller.
RFA LED – LED indicating the failure of one or more rectifiers.  This LED is not 

present on the controller.
OTA LED – LED indicating an out of range temperature condition.  This LED is 

not present on the controller.
OVA LED – LED indicating an over voltage condition.  This LED is not present 

on the controller.
EMAIL – Any alarms connected to this output will generate an alert email message 

when this facility has been set up (see section 13.6 - Network Settings).
BUZ – Any alarms connected to this output will cause the internal audible alarm 

to sound.

Battery Over Temperature – This alarm will be active when the battery temperature 

exceeds the activation temperature.  It will not deactivate until the temperature falls 

below the cancellation temperature.
Battery Under Temperature – This alarm will be active when the battery temperature 

falls below the activation temperature.  It will not deactivate until the temperature 

rises above the cancellation temperature.
External  Over Temperature  – The alarm will be active when the external 

temperature exceeds the activation temperature.  It will not deactivate until the 

temperature falls below the cancellation temperature.