Service manual

Power Supply
4-42 Revision L 96022
StorageTek Protected
■ Power Supply
The power supply, 3115926xx, is in the power supply module at the rear of the library.
Your library can have either two standard power supplies, or the standard
power supplies and two redundant power supplies. Power supplies are hot-
swappable if you have the redundant power supplies installed. This means you
can replace the faulty power supply, and the other power supplies will continue
to provide power to their components. If you have redundant power supplies,
only remove AC power from the power supply you are replacing. Do not remove
power from the input line switches at the bottom of the frame.
To determine which power supply needs to be replaced, look at the green light on the
power supply. The light on the defective supply will not be on. Also, you can use the
“Hardware Monitor” menu on the operator panel.
See “Power System” on page A-3 for more information about how the library and drives
will operate while you are replacing the power supply.
Use the following procedure to replace the power supply.
7. Reverse the steps to replace the FRU.
CAUTION:
Possible equipment damage: Make sure the cable is not pinched between the
operator panel and the frame.
8. Go to “Restoring Operation” on page 4-79.