Western Digital Ultrastar Data60 - Psu Led

User Guide
1. Overview
1.11 LEDs
Figure 9: IOM Fan LED Location
Table 11: IOM Fan LED Identification
Number LED Name Color Behavior
1 IOM Fan LED Amber Blink @ 2 Hz (50% duty cycle) – IOM Fan is being identified
Blink @ 1 Hz (50% duty cycle) – IOM Fan is reporting faults
Off – IOM Fan is on and reporting no faults
Note: LEDs have a 50% duty cycle (On for 2
seconds, off for less than a second).
1.11.4 PSU LED
The PSU has a single, multi-function LED. See the table below for a detailed functional description.
12