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Allen-Bradley 1771-P4S Manual page 6

Power supply modules

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Figure 3 shows details of how to connect a wire to a terminal on the
terminal block. You can connect these wires while the terminal block is
plugged into the supply, or you can remove the block to lay it on a flat
surface to connect these wires. To remove the block, pull it straight out out
from the receptacle on the module.
The 2 undesignated terminals do not connect to any electrical circuit on the
module and are not used. Each of the three functional terminals accepts a
single 14-AWG wire max.
To connect a wire to a terminal:
1.
2.
3.
Your power supply has an indicator located in the upper half of the module
front panel labeled P/S ACTIVE. Table C shows how to interpret the P/S
ACTIVE indicator.
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Strip 0.35 inches of insulation off the wire.
Spring the clip open to insert the wire, using a wedge-tipped tool such
as a small screwdriver. If you leave the terminal block plugged into
the supply, insert the tool parallel to the wire (push straight in). If you
remove the terminal block and lay it on a flat surface, insert the tool
perpendicular to the wire (push straight down).
After making the wiring connections, re-insert the terminal block into
the front plate. Be sure that the plug is completely inserted and that
the locking prongs are engaged.
5

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