Table 7-6. Power Supply LEDs
LED
Color Represents Power Supply Status
Green AC OK
(top)
v Solid ON - The power supply's AC input is above the minimum
requirements to operate.
v Solid OFF - The power supply's AC input is below the minimum
requirements to operate.
Green DC OK
(middle)
v Solid ON - The power supply's output voltage is within
regulation.
v Solid OFF - The power supply's output voltage is not within
regulation.
Blue Fault
(bottom)
v Solid ON - Indicates that one of the following faults has been
detected:
– Power supply is outside of specifications
– Current limit has been exceeded
– Temperature limit has been exceeded
– Fan failed while AC input is present and above the minimum
operating voltage
– AC input is below the minimum operating voltage
– The power supply is ON, the Power button ON, but the
library's indicator panel is OFF
v Solid OFF - Normal: No faults detected
In the operator intervention associated with the defective power supply, record
both the number of the module and the number of the power supply connected to
that module.
Each module can have up to two power supplies. When viewed from the rear, the
power supply on the left is considered to be #1, while the power supply on the
right is #2.
Modules are numbered according to their position in relation to the control module
(CM).
Picker LED
Both the Original and the M2 Picker Assembly have one green LED, seen in the
following images (1 in Figure 7-5 on page 7-23) and 1 Figure 7-6 on page 7-24
in that must be ON for the Picker to function properly. If the LED is not lit, the
Picker assembly should be investigated for problems (module-to-module
communication cable is not in place, module communication terminator is not in
place, an Access Door is open).
To observe the status of the Picker LED:
1. Look through the viewing window on the front of an expansion module and
determine whether or not the Picker LED is ON.
2. If you cannot see the Picker LED, power OFF the library. The Picker will move
to the bottom of the library.
3. Power ON the library.
4. Open the lowest I/O Station door in your library and, looking through the
opening to the left of the flap inside the I/O Station, observe the Picker LED.
7-22 TS3310 Tape Library Maintenance Information
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