Rockwell Automation 500LC Auxiliary Contact Modification - Manual (Page 2)

Insta lling Auxiliary C ontact Kits 500L C– 141C, 500L C– 142C to Bulletin 500L C Lighting C ontactors 2
Pu blica tion 500L C– IN003A –E N–P May 2005
Ho w to Ins tall Au xilia ry C ontacts
To avoid personal injury or property
damage, de–energize both line and control
power connected to the B ulletin 500LC
L ighting Conta ctor before proceeding.
CA UT ION
1. O pen circuit breakers or other disconnecting means, then use a voltmeter to
verify no voltage is present at both control and line terminal screws.
2. L abel, disconnect, and tape all wires (control, line, load) from the lighting
contactor.
3. L oosen the mounting screws and remove the B ulletin 500LC L ighting
C ontactor from the enclosure.
4. I nsert the plastic operatingscrew (from the kit) into the center of the coil and
carefully turn it clockwise until the threads engage the cam/core. See F igure 2.
5. Pull the operating screw outward to pull the cam/core up.
6. I nsert the lever (from the kit) into the left side of the lighting contactor. E nd
of cylindrical section should fit flush into the lightingcontactor. See Fi gure 1.
7. Push the operator screw inward to push the cam/core down.
8.
A ssemble the connector(s) with leads and auxiliary contact(s) from the kit.
9. Inse rt the mounting screw through the auxiliary contacts(s) (f ar hole). Very
carefully install the assembly onto the guide pin on the left side of the lighting
contactor. T ighten the screw to only 4 in–lb.
Do not overtighten the mounting screw !
R emove manual operating screw after use !
10. U se the operator screw to manually move the cam/core up and down and
check operation of the auxiliary contact(s).
11. R emove the operator screw from the cam/core.
12. R einstall the lighting contactor into the enclosure and tighten mounting screws.
13. R econnect all wires previously removed. T ighten the control, line, and load
connections to 18 in–lbs.
14. C lose circuit breakers or other disconnecting means and check electrical
operation of the lighting contactor.
2005 Ro ckwell Automation. All rights res erved. Printed in US A.
381339–263