CORPORATION SIZE 20 SERIES LDA OF AMERICA INCREMENTAL MODULAR ENCODER 1-800-35-SUMTAK www.sumtak.com FEATURES • 2.0" O.D., modular designed • Self-aligning, -centering, -gapping • 200 KHz frequency response • Up to 2500 P/R • Factory pre-assembled feature U.S. patent no. 4556792 • Applications: Computer Printer, Phototypesetter, Semiconductor Processing, Tapetransport, Digital Plotter, Medical Diagnostic Equipment OUTLINE DIMENSIONS SPECIFICATIONS Electrical Pulse per Revolution Up to 2500 Supply Voltage 5Vdc, 12Vdc, 15Vdc Output Format Dual Square Wave in Quadature with index Output Option TTL & HTL TTL Line Driver Output [26LS31] Open Collector Current Requirements TTL: 80mA Max. No Load HTL: 120mA Max. No Load TTL Line Driver: 140mA Max. No Load Open collector: 80mA Max. No Load Frequency Response 200 KHz [A, B and Index] Electrical Connections 3.3 ft. Shielded Cable OUTPUT WAVE FORMS Mechanical Shaft Diameter .2500"/.2494", .3750"/.3744", .5000"/.4993", 8.000 mm/7.985 mm, 10.000 mm/9.985 mm Shaft Length .70"/.90" Shaft Runout .004" TIR Max. Perpendicularity .0012" TIR Max. Shaft to Mounting Surface Shaft Axial Movement Various, depending on PPR Rated Speed 6,000 RPM Acceleration Speed 1 x 104 rad/sec2 Moment of Inertia 2.7 x 10-4 oz.-in.-sec2 [up to 999 PPR] ELECTRICAL CONNECTIONS 4.5 X 10-4 oz. -in.-sec2 [1000 to 1800 PPR] Standard Line Driver, Wire color Square Wave Complementary Weight 6 oz. Max. With 3.3 Ft. Cable Output Output White Vcc Vcc Environmental Black OV OV Temperature Operating: 0 °C to +70 °C [TTL L/D] Red A A -10 °C to +70 °C Pink OV A [Other Outputs] Green B B Storage: -20 °C to +80 °C Blue OV B Housing Drip-Proof Yellow Z Z Orange OV Z Vibration 10 to 200Hz. @5G's Shield (use ground) (use ground) Shock 100G's for 6 ms 3 Times Each X, Y, Z Note: By-pass capacity is connected between OV and encoder body. Directions 21 CORPORATION Installation Instructions Model LDA OF AMERICA 1-800-35-SUMTAK www.sumtak.com GENERAL INFORMATION The LDA encoder is designed for installation directly on the motor shaft. 4. Alternately fasten the two set screws provided on the side of the hub with 1.5mm It provides a factory pre-assembled feature that eliminates the need for hex key wrench to the motor shaft. TIGHTEN any adjustment of disc gap, disc alignment, symmetry and phasing while WITH 5.2 in./lb. installing it on the motor shaft. Be careful not to cut or pinch electrical circuits and not to put grease or dirt on circuit board while tightening screws. SPECIAL CARE FOR INSTALLATION The encoder must be handled with care to avoid exposure to dust, dirt and grease, resulting in malfunction. Extreme care is required for removing "MEMORY PLATE", since the 5. Loosen the two phillips screws above the encoder is preadjusted and pre-set with "MEMORY PLATE". plastic ring first, then remove the outside of the two phillips screws. Necessary steps shown in assembly procedure must be taken before removing "MEMORY PLATE". MOTOR MOUNTING REQUIREMENTS Shaft Tolerance: Squarewave 1/4", 3/8" ....................+0, -.0006" 6. Remove the "MEMORY PLATE" with the 1/2".............................+0, -.0007" plastic ring. 8mm, 10mmm............+0, -.015mm [Save the "MEMORY PLATE" for future removal and reinstallation of the encoder]. Sinewave 1/4", 3/8" ....................+0, -.0003" 1/2".............................+0, -.0004" 8mm, 10mmm............+0, -.009mm Shaft Length .70"/.90" Mount Holes #4-40 x .25" deep 2 holes 180 ° apart on 1.811" dia. ±.004" B.C. 7. Place O-ring in the groove of the encoder Shaft Runout .004" TIR Max. flange. Perpendicularity .0012" TIR Max. [Shaft to Mounting surface] Shaft End Play 1-200 PPR ..................0216" [Max.] 201-300 PPR ..............0177" 301-400 PPR ..............0137" 401-600 PPR ..............0078" 601-800 PPR ..............0059" 8. Apply silicon grease to the inside of the cover 801-900 PPR ..............0043" around the cut-end. 901-1200 PPR ............0039" Place the cover so that the open-cut is placed 1201-1600 PPR ..........0020" over the lead cables. 1601-1800 PPR ..........0015" 1801-2048 PPR ..........0012" 2500 PPR ...................0004" [Each Direction] ASSEMBLY PROCEDURE 9. Attach the cover with the two flat head machine screws provided. Tie-lock is to be applied. 1. Apply tie-lock to two hex socket set screws TIGHTEN WITH 3.5 in./lb. placed on the side of hub. Be sure that the two set screws are loosened. REMOVAL PROCEDURE 2. Place the encoder body over the shaft by 1. Rotate the hub so that the two set screws will position to loosen and holding the plastic ring underneath the tighten from the encoder side. Please note that you cannot loosen and 'MEMORY PLATE", and press it into the tighten the two set screws from the encoder side if stop position of the mounting surface. Do not use force when hub is off 180°. you have difficulty in insertion. Forcing the 2. Align the two threaded holes of the hub with the two threaded holes of insertion destroys all pre-adjustment precisely made by the factory. Check to see the housing. if the two set screws are loosened enough. 3. Place the "MEMORY PLATE" over the housing and the hub. 4. Fasten the "MEMORY PLATE" with the four screws provided until the ring is snugly placed over the hub end. 5. Loosen the two set screws located on the side of the hub. You are now 3. Apply tie-lock to the tip of #4-40 x 1 pan head screws provided, and fasten the encoder ready to remove the encoder. body to the mounting surface. FASTEN It is not recommended that the encoder be removed and reinstalled SCREWS ALTERNATELY. TIGHTEN WITH unless absolutely necessary. The frequent removal and reinstallation may 5.2 in/lb. affect the electrical alignment. 22 How to order: SIZE 20 INCREMENTAL MODULAR RESOLUTION FUNCTION CODE TERMINATION (cycles per round) VOLTAGE OUTPUT –– – – LDA STD.: STD.: STD.: 100 250 0=Shieled Cable 047=Differential Line Driver 360 500 5VDC, with Index Ungated 1000 1024 OPTION: 1/4" Hub I.D., Shielded Cable 1200 Consult Factory 051=Differential Line Driver 5VDC, with Index Ungated OPTION*: 3/8" Hub I.D., Shielded Cable 1800 2000 048=Differential Line Driver 2048 2500 STD.: 5VDC, with Index Ungated L=Line Driver 1/2" Hub I.D., Shielded Cable STD.: 126=Differential Line Driver OPTION: 05=5VDC 5VDC, with Index Ungated E=TTL or HTL 6mmHub I.D., Shielded Cable (5V) (12/15V) OPTION: 052=Differential Line Driver C=Open Collector 12=12VDC 5VDC, with Index Ungated 15=15VDC 10mmHub I.D., Shielded Cable * LDA — 502 (1/4”) — 1800~2500 5V. Line driver OPTION: LDA — 503 (1/2”) — 1800~2500 5V. Line driver XXX=Depending upon your specs., LDA — 504 (3/8”) — 1800~2500 5V. Line driver we will assign 3 digits function code. LDA — 505 (6mm) — 1800~2500 5V. Line driver LDA — 501 (8mm) — 1800~2500 5V. Line driver Available Resolution: 20, 50, 100, 120, 125, 200, 250, 254, 256, 300, 360, 400, 500, 512, 600, 635, 660, 720, 762, 800, 900 — Metal 960, 1000, 1024, 1200, 1250, 1270, 1500, 1600, 1800, 1920, 2000, 2048, 2500, 2540 — Glass • Standard model has the following specifications. OUTPUT FORMAT: Dual square wave in quadrature with index (A, B, Z) Channel A leads B CCW rotation as viewed from encoder. INDEX: There is no specified alignment between index and channels. CABLE: 3.3 ft. pigtail shielded cable • NOTE: The factory will assist you in construction of the model no. including special specifications. Please contact us. 1-800-35-SUMTAK • Specifications subject to change without notice. 23