Rockwell Automation 800HL Potentiometer User's Manual and Instructions

INSTALLATION INSTRUCTIONS 800HL-EMP POTENTIOMETER FOR NEMA TYPE 7 [3/8" (9.5) TO 2-1/2" (50.8) PANELS] AND TYPE 9 [7/32" (7.2) TO 2-1/2" (50.8) PANELS] Ä

To avoid damage to equipment or injury to personnel, electrical power

WARNING

must be off before and during installation and maintenance.

current-carrying parts and enclosure.

ADJUSTING NUT

SET SCREWS ADAPTER RING HOUSING

1/16" (1.6) HEX WRENCH PANEL

TIGHTEN TO 4 ± 1/2 LB-IN

SECURING RING

SHAFT

KNOB MOUNTING RING

MOUNTING BUSHING

LOCKING SCREW

LEGEND PLATE Figure 1

Installation: See Figure 1 for illustrated assembly. 1. Place securing ring and/or adjusting nut as supplied on unit and thread unit into panel until bushing extends approximately 11/32" (8.7) [4 to 5 threads], past front of panel - 9/32" (7.1) [3 to 4 threads] if a legend plate is not to be used, see Figure 3. 2. To secure unit, rotate to a position which provides electrical clearance and tighten adjusting nut and/or locking screw. Where two units are mounted adjacently, arrange securing rings to avoid interference. 3. When Installing in a metal enclosure, maintain 1/2” (12.7) minimum

WARNING clearance through air between current carrying parts enclosure. 4. Place legend plate, if to be used, over mounting bushing.

5. Assemble mounting ring adapter and tighten. 6. Rotate shaft counterclockwise to stop. 7. Position knob on shaft aligning white indexer on knob with "min." increment marking on legend plate. 8. Tighten the two set screws in the knob to 4 ± ½ lb.-in. with a 1/16" (1.6) hex wrench. 9. Install mounting ring and tighten. Allen-Bradley Catalog No. 800T-N3 wrench is available for this operation. Replacing Potentiometer: See Figure 3 for illustrated assembly. NOTE 1: Refer to nameplate on housing for original potentiometer resistance. NOTE 2: Unit need not be removed from enclosure to replace potentiometer.Potentiometer Removal: 1. Remove the two screws on the rear of the housing and pull the housing (see Figure 3) from the bushing. 2. Disconnect the three wire leads from the potentiometer terminals. 3. Loosen the two set screws in the shaft adapter with a 1/16" (1.6) hex wrench and remove shaft adapter from potentiometer shaft. 4. Remove nut, lockwasher and mounting plate. Potentiometer Installation: 1. Remove mounting ring leaving mounting ring adapter in place. Allen-Bradley Catalog No. 800T-N3 wrench is available for this operation. 2. Loosen the two set screws in the knob with a 1/16" (1.6) hex wrench and remove knob. 3. Rotate shaft so that it extends .40 ± .01 (10.2 ± .2) from bushing. 4. Before installing potentiometer bend the three terminals 80° -90° and remove nut and lockwasher from bushing (see Figure 2). 5. Install mounting plate, printed side facing outward, over potentiometer shaft aligning locating tab on potentiometer with slot in mounting plate. 6. Tighten nut and lockwasher on potentiometer shaft and bend locating tab to fit mounting plate. 7. Insert wire leads onto the potentiometer terminals making sure the leads identified as 1, 2 and 3 are attached to the correspondingly identified potentiometer terminals. (See Figure 3 for terminal identification.) If the potentiometer housing does not have wires with terminal lugs, cut and strip the wires and solder the wire end to the appropriate potentiometer terminal.

40060-303-01 Ver (06) Printed in U.S.A