Alpha Technologies Cordex CXCRF 48-300W - Manual (Page 32)

0300072-J0 RevA Page 28 of 46
LED
4 OPERATING THE 48-300W MODULAR SWITCHED
MODE RECTIFIER SYSTEM
4.1 Switching ON and OFF
4.1.1 Switching ON
After powering up the 48-300W Modular Switched Mode Rectifier System, please verify that the following:
• The mains is ON.
• The rectifiers correctly report mains present. (Green LEDs on each rectifier should illuminate).
• If the system is fitted with a Comp@s board, after 30 seconds the leftmost LED should be permanently
ON
Note: LED continues to flash if no Comp@s is present. If it is present, verify the display: V =~54.0 V
• Close the breaker for the battery (if present).
The system is then operational. Some alarms may be ON, depending of the settings on the MCU.
4.1.2 Switching OFF
In order to switch off the complete system, use the external mains disconnect device. If the shelf has a battery
back-up, pull the battery breaker button (the LVD will open) too.
NOTE:
The mains disconnect device and the battery breaker must always be easily accessible to
facilitate system shut down in an emergency. In this case, the battery is disconnected from the
system as the LVD is open and the load is no longer supplied by the DC Bus.
4.2 Rectifiers 300 W: CXRF 48-300W
There is an LED on the rectifier front panel which illuminates in green, orange or red depending upon the status
of that unit. When in fault condition, the rectifier sends an alarm signal and the LED flashes. This signal is
detected by the MCU.
Figure 27 : CXRF 48-300W