Quantum Scalar i40, User Manual

Page: 138 / 328

Chapter 5: Performing Library Operations
Shutting Down, Restarting, Turning Off, and Removing Power
112 Quantum Scalar i40 and Scalar i80 User’s Guide
Caution: You should always perform a shutdown and then turn off
library power before completely removing power.
Otherwise, the following could occur:
– The library may not complete closing all data and log
files.
– If you turn off power or unplug the power cord while
writing to tape, the data on the tape could become
corrupted.
– The robot may become frozen in the middle of an
operation and unable to move once library power is
restored, possibly requiring a service call.
1 Make sure the connected host applications are not sending
commands to the library and that all library operations have
stopped.
2 Shut down the library (see Shutting Down the Library on page 107).
3
Turn
OFF
the library by physically pressing the power button on the
library’s front panel (see Turning Off the Library on page 111). Make
sure the operator panel turns off or the LED on the SCB turns off.
4 Disconnect the power cord(s) from all power supplies on the back of
the library. If there are two power supplies, disconnect both cords.
Power is completely removed from the library when the LED on each
power supply is off.
Emergency Power-off
Procedure
In an emergency, you may need to turn off power immediately to stop
robot motion, bypassing the normal shutdown process.
In an emergency, you can turn off power in one of two ways:
• Press the power button on the front of the library to turn the library
OFF . It may take up to 4 seconds for all motion to completely stop.
Note that this does not completely remove library power (you need
to disconnect the power cords to do that).
• Disconnect the power cord from each power supply on the back of
the library. It may take 1 to 2 seconds for motion to completely
stop.