Instruction Manual

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1980 Rotating Cam Limit Switches

Ordering Guide & Technical Information

Summary of content (20 pages)

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980 Rotating Cam Limit Switches Ordering Guide & Technical Information
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Features For OSHA Standards • Precision Cam adjustment at any angular position of the Camshaft • Speeds from 0 to 500 RPM in either direction • No special Cams required for any contact setting from 4° to 356° • No tools required to adjust Cam setting • Accurate repeatability • GEMCO rugged duty precision snap action switches • U.L.
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Easy Set-Up Procedure Mounting of Unit READ CAM SETTING HERE FRONT SIDE ALWAYS VIEW CAMSHAFT ROTATION FROM RIGHT SIDE One Turn of Adjusting Dial Moves Cam 10° (Adjusting Tool #P-346-B Inside Cover of Each Unit) SWITCH SIDE Mount the assembly and couple input shaft to the driving member with the shaft keyway up and in line with the positioning arrow on the bearing end plate. The machine should be in the start cycle position.
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Description Technical Data Precision, rugged duty snap action switches, extremely accurate cam adjustments with a heavy duty shaft, rugged case and lifetime sealed ball bearings, have been combined by GEMCO to provide the most versatile and dependable Rotating Cam Limit Switch available. • The maximum temperature with full electrical load is 185°F. The minimum operating temperature is 50°F minimum cam adjusting temperature is -10°F.
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Electrical Switches Description The GEMCO Precision Snap Switches are designed for industrial duty applications where compact size, complete reliability and millions of trouble free operations are required. The switches are individually mounted and can be readily replaced without the need of adjustment or alignment. All switches have binder head terminal screws which are accessible for wiring with either stripped or wire lug connections.
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1980 1 04 – R – SP — X c.w. NUMBER OF CAMS ENCLOSURE TYPE c.w. RIGHT Side RIGHT Side 1980 Standard 1980R Built-In Resolver SEE PAGE 10 FOR CATALOG NUMBER HORIZONTAL Mtg. NOTE: Timing dial always mounted at right hand and as shown, takes one circuit space, as viewed from right side. { { HORIZ. Mtg. VERT. Mtg. X TD1 TD2 TD3 TD4 TIMING DIAL* NO TIMING DIAL C.W. ROTATION C.C.W. ROTATION C.W. ROTATION C.W. ROTATION * NOTE: If window is required for timing dial, replace D with W in Catalog Number (i.e.
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R R S M 1.5 TYPE OF GEAR REDUCER RIGHT ANGLE STRAIGHT DRIVE MULTIPLIER DRIVE ** For straight drive gear reducers with 1970 Drive Chek, refer to section 1970 for shaft extension location. RATIO 1 1.2 1.25 1.33 1.5 1.6 2 2.2 2.5 3 4 4.75 5 6 7 7.5 8 8.5 10 12 12.5 14 15 16 17 18 20 24 25 28 30 32 35 36 40 48 50 60 64 72 80 96 100 200 400 500 600 2 3 4 5 *6 *7 *8 R1 GEAR REDUCER Straight Right Drive Angle 1.1 1.2:1 1.25:1 1.25:1 1.33:1 1.33:1 1.5:1 1.5:1 1.6:1 1.6:1 2:1 2:1 2.2:1 2.5:1 2.
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Number of Circuits NEMA 1 NEMA 4 & 5 NEMA 7 NEMA 12 NEMA 1 NEMA 4 & 5 NEMA 7 NEMA 12 Catalog Number Cat. No. w/Resolver Catalog Number Cat. No. w/Resolver Catalog Number Cat. No. w/Resolver Catalog Number Cat. No.
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Shaft Extension The GEMCO Rotating Cam Limit Switch can be supplied with the desired shaft extension. The standard shaft extension can be speciﬁed in the catalog numbering system on page 8. To determine the shaft extension symbol, the Rotating Cam Limit Switch must be viewed from the Switch Type The GEMCO Precision Snap Switches are speciﬁcally designed for industrial duty applications where reliability, ease of wiring and millions of trouble free cycles are required.
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DETERMINING DIRECTION OF CAMSHAFT — TIMING DIAL ROTATION RIGHT ANGLE GEAR REDUCER ROTATION Rotation Input Shaft Versus Camshaft GEAR REDUCER POSITION R1 or L1 R2 or L2 R3 or L3 R4 or L4 R5 or L5 R6 or L6 R7 or L7 R8 or L8 GEAR REDUCER INPUT SHAFT ROTATION CAMSHAFT TIMING DIAL ROTATION CW CCW CW CCW CW CCW CW CCW CW CCW CW CCW CW CCW CW CCW CW CCW CCW CW CW CCW CCW CW CW CCW CCW CW CW CCW CCW CW View Camshaft from Right End CW = Clockwise CCW = Counter Clockwise STRAIGHT DRIVE GEAR REDUCER Input Shaft
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Replacement Cam Assemblies Standard Cam Assembly Part No. SD-1178-C (includes two cams Part Nos. P-356-B and P-357-B) Blank Cam Assembly Part No. SD-1140-C (includes two blank cams Part No. P-271-B) Special Cams A Blank Cam Assembly (Part No. SD-1140-C) can be supplied in place of the Standard Cam Assembly, (Part No. SD-1178-C) at no additional charge, when speciﬁed. Advise number required and location. A drawing of the Cam shape must be given with the order. Generally, two cams are required per circuit.
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NEMA 1 Dimensions NOTE: ASSEMBLY SHOWN IS STANDARD. SHAFT EXTENSIONS CAN BE PLACED AT EITHER END OR BOTH ENDS. L #606 WOODRUFF KEY 1.50 .75 CONDUIT SIZE (2) HOLES, PLUGGED AT SHAFT END .7490 Dia. .7475 7.94 MIN. VERTICAL CLEARANCE TO REMOVE COVER 4.05 2.07 .34 Dia. (4 MTG HOLES) .12 3.18 B A No. of Circuits A A-S A-R B C D E L Wt. Approx. Gross 2 to 4 9.28 12.12 9.38 4.42 6.50 5.00 3.12 .75 12 lb. 5 to 6 11.72 14.56 11.82 6.86 6.50 5.00 3.12 1.25 14 lb.
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NEMA 1 with Straight Drive Gear Reducer NOTE: ASSEMBLY SHOWN IS STANDARD. REDUCER CAN BE PLACED ON EITHER END. SHAFT EXTENSION ON END OPPOSITE OF REDUCER IS OPTIONAL. 1.50 .50 .7490 Dia. .7475 7.94 L #404 WOODRUFF KEY MIN. VERTICAL CLEARANCE TO REMOVE COVER CONDUIT SIZE (2) HOLES, PLUGGED AT REDUCER END .4995 Dia. .4975 2.07 REF. 4.86 4.05 Y .34 Dia. 3.18 REF. 6.02 B GROOVES TO ACCEPT GEMCO ADJ. COUPLING A-S 1.88 .75 E X D C (4 MTG HOLES) NEMA 1 with Right Angle Gear Reducer 2.
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Nema 4 & 5 Dimensions H 3.00 NOTE: ASSEMBLY SHOWN IS STANDARD. SHAFT EXTENSIONS CAN BE PLACED AT EITHER END OR BOTH ENDS. TO REMOVE ACCESS PLATE #606 WOODRUFF KEY FITTING ON END L CONDUIT OPPOSITE SHAFT EXTENSION 1.50 .75 .7490 Dia. .7475 6.00 R 4.75 2.45 F .25 .38 Dia. G (4 MTG HOLES) 2.66 B A 1.75 .38 3.25 E D C GROOVES TO ACCEPT GEMCO ADJ. COUPLING No. of Circuits A A-S A-R B C D E F G H L Wt. Approx. Gross 2 to 4 9.69 12.53 9.78 5.45 10.12 5.00 9.38 2.06 1.
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Nema 4 & 5 with Straight Drive Gear Reducer NOTE: ASSEMBLY SHOWN IS STANDARD. REDUCER CAN BE PLACED ON EITHER END. SHAFT EXTENSION ON END OPPOSITE OF REDUCER IS OPTIONAL. H 1.50 .75 1.50 FITTING ON END L CONDUIT OPPOSITE GEAR REDUCER .50 #606 WOODRUFF KEY MIN. COVER CLEARANCE #404 WOODRUFF KEY .7490 .7475 Dia. .4995 .4975 Dia. 6.00 Y F .38 Dia. 2.66 REF G .25 (4 MTG HOLES) B A-S 3.25 E X D C GROOVES TO ACCEPT GEMCO ADJ. COUPLING 2.45 1.75 .
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NEMA 7 Dimensions R9.84 TO OPEN COVER NOTE: ASSEMBLY SHOWN IS STANDARD. SHAFT EXTENSIONS CAN BE PLACED AT EITHER END OR BOTH ENDS. 1.50 .75 #606 WOODRUFF KEY .7490 Dia. .7475 1-1/4 NPT CONDUIT HOLE 7.25 4.00 3.00 2.25 .44 Dia. 6.81 .50 (4 MTG HOLES) .52 .50 TYP. GROOVES TO ACCEPT GEMCO ADJ. COUPLING B A 4.31 .94 8.62 13.09 ******* Need Numbers Below ****** No. of Circuits A A-S A-R B C D E F G L Wt. Approx. Gross 2 to 4 9.69 12.53 9.78 5.45 10.12 9.38 3.69 2.06 1.
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NEMA 7 with Straight Drive Gear Reducer NOTE: ASSEMBLY SHOWN IS STANDARD. REDUCER CAN BE PLACED ON EITHER END. SHAFT EXTENSION ON END OPPOSITE OF REDUCER IS OPTIONAL. 1.50 .75 R9.84 TO OPEN COVER 1.50 #606 WOODRUFF KEY .50 #404 WOODRUFF KEY .7490 Dia. .7475 .4995 7.25 .4975 Dia. 1-1/4 NPT CONDUIT HOLE 4.00 Y 2.25 .44 Dia. 6.81 .50 (4 MTG HOLES) GROOVES TO ACCEPT GEMCO ADJ. COUPLING B A-S .52 .50 TYP. .94 X 8.62 13.09 NEMA 7 with Right Angle Gear Reducer R9.84 1.50 .
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NEMA 12 Dimensions .50 TYP. NOTE: ASSEMBLY SHOWN IS STANDARD. SHAFT EXTENSIONS CAN BE PLACED AT EITHER END OR BOTH ENDS. 10.38 CONDUIT FITTING #606 WOODRUFF KEY L ON END OPPOSITE 1.50 .75 .7490 Dia. .7475 5.44 MIN. VERTICAL CLEARANCE TO REMOVE COVER SHAFT EXTENSION 2.45 F .25 .38 Dia. (4 MTG HOLES) G 2.66 B A .38 No. of Circuits A A-S A-R B C D E L Wt. Approx. Gross 2 to 4 9.28 12.12 9.38 4.42 6.50 5.00 3.12 .75 12 lb. 5 to 6 11.72 14.56 11.82 6.86 6.50 5.00 3.
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NEMA 12 with Straight Drive Gear Reducer 1.50 .75 .50 TYP NOTE: ASSEMBLY SHOWN IS STANDARD. REDUCER CAN BE PLACED ON EITHER END. SHAFT EXTENSION ON END OPPOSITE OF REDUCER IS OPTIONAL. 10.38 CONDUIT FITTING L ON END OPPOSITE 1.50 .50 #606 WOODRUFF KEY #404 WOODRUFF KEY .7490 .7475 Dia. MIN. VERTICAL CLEARANCE TO REMOVE COVER SHAFT EXTENSION .4995 .4975 Dia. 5.44 2.45 Y F .38 Dia. 2.66 REF G .25 (4 MTG HOLES) B A-S 3.25 E X D C GROOVES TO ACCEPT GEMCO ADJ. COUPLING .
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AMETEK APT Products Copyright 2005 by AMETEK AUTOMATION & PROCESS TECHNOLOGIES. All Rights Reserved. Made in the USA. 6380 Brockway Road, Peck, MI 48017 Phone: 810.378.5511 Toll Free: 800.325.8074 Fax: 810.378.5516 www.AMETEKAPT.com 1980.C3R 5/05.