Unique Broadband Systems Ltd. DRU1KW User Manual

 

5.4.8  Battery Management System (BMS) 
 

The BMS rectifier front panel includes an LED to indicate that the rectifier has been power 
on.  The BMS mounting shelf front panel controller includes seven (7) status LEDs to 

indicate BMS operation and alarm conditions.  The BMS mounting shelf front panel also 
includes five (5) circuit breakers to turn on/off the BMS 12 VDC output. 

 

 

 

1)  Rectifier Power LED Indicator 
2)  BMS Controller Status LED Indicators 

 
Table 5-4 Rectifier LED Indicator 

Green 

Rectifier is powered on. 

 

OFF 

Rectifier is powered off. 

 
Table 5-5 BMS Controller Status LED Indicators 

 

Green 

BMS is powered on and is operating under normal, no 
fault conditions. 

CTR 

OFF 

BMS is powered off. 

Red “Major” 

(immediate 

response) alarm is present. 

MAJA 

OFF 

Normal, no fault operation (when CTR LED is Green). 

Red 

“Minor” (scheduled response) alarm is present. 

MINA 

OFF 

Normal, no fault operation (when CTR LED is Green). 

Red AC 

supply 

failure. 

ACFA 

OFF 

Normal, no fault operation (when CTR LED is Green). 

Red 

One or more of the monitored temperatures is too high. 

OTA 

OFF 

Normal, no fault operation (when CTR LED is Green). 

Red Rectifier 

failure. 

RFA 

OFF 

Normal, no fault operation (when CTR LED is Green). 

Red 

System BUS Voltage is too high. 

OVA 

OFF 

Normal, no fault operation (when CTR LED is Green). 

 

 

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