Fujitsu BX600 S2 User Manual

PRIMERGY BX600 S2 Basic Unit

 141

Power Supply Concept

Figure 90: Power supply unit: LEDs

There are three LED displays on the front of the unit to allow the status of the 
power supply unit to be monitored.

When the base unit is operating normally, LEDs 1 and 3  will be on all the time 
and LED 2 will be off. If LED 2 signals a fault by lighting up, the power supply 
unit affected must be replaced as soon as possible. This can be done while the 
base unit is still running (see 

).

1

Lights up when the PRIMERGY BX600 S2 base unit is switched on.

2

Lights up if a fault occurs on the power supply unit or if a fan

1

 fails.

1

If the large fan on the front fails, the power supply unit switches off. If one of the small fans 
on the rear fails, the power supply unit continues to run. See 

 for the location of the 

power supply unit fans.

3

Lights up when the mains connection is re-established.

1 2 3