How to install and con
fi
gure Option DPW
Install the backup Power Supply module
Perform the following steps to install the backup Power Supply module or to
replace a failed supply:
1.
If your instrument was shipped with only one Power Supply module, remove
the blank power supply cover from the Power Supply 2 slot by pushing the
retaining latch to the left, and then pulling the cover out of the instrument as
shown in the following
fi
gure. Proceed to step 3.
Figure 1: Removing the shield from the Power Supply 2 slot
2.
If your instrument has two Power Supply modules installed, perform the
following steps to install the new supply:
a.
Remove the power cable from the Power Supply module that you are
replacing.
WARNING.
Disconnect the power cord from a Power Supply module before
you remove the module from the instrument. Also, do not connect a power
cord to a Power Supply module while the module is not installed in the
instrument. There are dangerous high voltages on the module when the power
cord is connected.
CAUTION.
To prevent an unexpected shutdown of the instrument, be sure to
unplug the correct power cord if you are replacing a faulty Power Supply
module. (See Figure 2.)
When viewed from the front of the instrument, Power Supply 1 is the left
Power Supply module and Power Supply 2 is the right Power Supply module.
This matches the orientation of the PWR1 and PWR2 indicators on the front
panel. The STATUS LED on the rear panel of each Power Supply module will
match the status shown by the front-panel PWR1 and PWR 2 indicators.
SPG70UP Field Upgrade Instructions
9
