Rockwell-automation 1500 Isolation Switch Handle Interlock Mechanism E Manual de usuario descargar pdf (Pagina 15)

Bulletin 1500/1900 Isolation Switch Handle – Interlock Mechanism Replacement 15

1500-IN052C-EN-P – January 2007

To avoid shock hazards, lock out incoming power (see pages 1

to 4) before working on the equipment. Verify with a hot stick or

appropriate voltage measuring device that all circuits are voltage

free. Failure to do so may result in severe burns, injury or death.

1) Complete the Power Lock-out Procedure (see pages 1 to 4).

2) Open the medium voltage door. Use the Door Interlock Circumvention procedure

(described in Appendix A) to move the isolation switch handle halfway between

the OFF and ON position (see Figure 5). Keep the handle in this position until

the adjustment procedure is completed.

3) With the contactor in the OFF position, insert a 0.060 in. (1.5 mm) feeler gauge

in the gap between the interlock lever and the isolation switch operating lever.

The gap must be between 0.039 in. to 0.078 in. (1.0 mm to 2.0 mm).

4) To reduce the gap distance, follow steps 5-7.

To increase the gap distance follow steps 8-10.

Isolation Switch

Operating Lever

Stop Bracket

Switch Interlock Lever

Gap

0.039 in. to 0.078 in.

(1.0 mm to 2.0 mm)

Isolation

Switch Handle

at halfway

position

Contactor Interlock Rod

Contactor Interlock Lever

Nylock Nut

Figure 5 – Isolation Switch Handle Adjustments

Contactor Interlock Rod

Adjustment

A T T E N T I O NA T T E N T I O N

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Rockwell-automation 1500 Isolation Switch Handle Interlock Mechanism E Manual de usuario Pagina 15