Rear Fan Led - Western Digital Ultrastar Data60 User Manual

User Guide
Figure 10: PSU LEDs
Table 11: PSU LED Identification
LED Name
PSU Multi-function LED
1.7.5 Rear Fan LED
The Rear Fan has a single LED that has three distinct states, one for a fault condition, one for Identification,
and off.
Color
Solid – PSU is on and reporting no faults
Green Blink @ 2Hz (50% duty cycle) – PSU in firmware update mode
Off – PSU is disconnected from power
Solid – PSU is disconnected from power
or critical fault causing a shutdown failure
Blink @ 0.5Hz (50% duty cycle) – PSU reporting warnings
Amber
Note: LEDs have a 50% duty cycle (On
for 2 seconds, off for less than a second).
Behavior
Off – PSU is reporting no faults
1. Overview
1.7 LEDs
11