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Rockwell Automation Publication 1512A-UM101B-EN-P - December 2021
Chapter 4 Common Installation
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All tools are accounted for. If you cannot locate a tool, do not energize the
unit until it is found.
Testing Contactor Operation
1. Connect the appropriate external power supply (120V or 230V AC) to the
test receptacle in the control panel. Turn the selector switch to the TEST
position.
2. Electrically operate the contactor several times. Inspect the armature
plate to verify that it fully contacts the magnetic cores.
3. Turn the selector switch to the OFF position and unplug the test voltage.
4. Remove any metal filings or loose hardware from around the magnetic
cores of the vacuum contactor. The debris is attracted to the coil once it is
energized and could prevent the contactor from closing properly.
Figure 34 - Typical Wiring Diagram: Electrically Held Vacuum Contactor (
with
IntelliVAC Control)
ATTENTION:
Some control circuit configurations may require
control jumpers to let the contactor close during the test
procedure. Do not jumper any isolation switch contacts such
for the location of
these contacts). Using jumpers for these contacts may result
in equipment damage or injury to personnel.
