Fujitsu BS2000 SE Series Operating Manual page 84

Server Unit /390
Indicator on hot-plug power supply unit
Figure 48: Indicator on hot-plug power supply unit
No. Meaning
1 Indicator on hot-plug power supply unit (two colors)
Flashes green when the HNC is switched off, but line voltage is present (standby mode).
Lights up green when the HNC is switched on and functioning properly.
Flashes orange when a predictable error has been detected, but the power supply unit is still running.
Lights up orange when no line voltage is present or the power supply unit has failed.
1) The following events are detected as predictable errors:
The temperature is very high.
The power consumption is very high.
The current strength is very high.
The fan speed is very low
In each of these cases please notify Customer Support.
1)
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