Testing For Electrical Shorts And Continuity - Allen-Bradley ControlNet 1786-6.2.1 Planning And Installation Manual

Testing For Electrical Shorts and Continuity

1. Using an ohmmeter or continuity tester, test for a short between the
connector body and pin.
If resistance reading
indicates:
there is no short
ohmmeter
that a short exists
connector body
pin
2. Connect a temporary short between the pin and connector body at
one end of the cable.
3. At the other end of the cable, use an ohmmeter or continuity tester
to test for electrical continuity.
If resistance reading
indicates:
there is no short
that a short exists
ohmmeter
connector body
pin
Important: Replace the trunk-cable section if problems persist with
the cable after completing these tests.
Installing A ControlNet Cable System
Then:
continue to next section
use your wire cutters to cut off the connector,
install a new connector and begin testing again.
20166
connector body
20166
pin
Then:
continue to next section
use your wire cutters to cut off the
connector, install a new connector and
begin testing again.
20166
Publication 1786-6.2.1 - April 1998
3-17