Specifications

Power Distribution Modules
31007715 6/2008 377
Accessing
the Fuse Panels
The two panels that house the actuator bus protection fuse and the sensor bus
protection fuse are located on the right side of the PDM housing (see p. 369). The
panels are red doors with fuse holders inside them. The 5 A sensor power fuse is in
the top door. The 10 A actuator power fuse is in the bottom door.
Replacing a Fuse Before you replace a fuse in the STB PDT 3100, remove the power sources to the
actuator bus and sensor bus.
BURN HAZARD - HOT FUSE
Disconnect power for 10 minutes before removing fuse.
Failure to follow these instructions can result in injury or equipment damage.
Step Action Notes
1 After you have removed the power connectors
from the module and let the unit cool down for
10 minutes, pull the PDM from its base. Push
the release buttons at the top and bottom of the
PDM and pull it from the base.
2 Insert a small flathead screwdriver in the slot on
the left of the fuse panel door and use it to pop
the door open.
The slot is molded to protect the
tip of the screwdriver from
accidentally touching the fuse.
3 Remove the old fuse from the fuse holder inside
the panel door, and replace it with another fuse
or with a fuse bypass plug.
Make sure that the new fuse is
the same type as the old one.
4 Optionally, you may repeat steps 3 and 4 to
replace the fuse in the other panel.
5 Snap the panel door(s) shut and plug the PDM
back into its base. Then plug the connectors
back into the receptacles, close the cabinet and
reapply field power.
CAUTION
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