*RoHS compliant Absolute encoder gray code output Digital output Sturd

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*RoHS compliant Absolute encoder gray code output Digital output Sturd

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*RoHS compliant Absolute encoder gray code output Digital output Sturdy construction Bushing mount Available with board mounting bracket (optional)
Absolute Contacting Encoder (ACETM)
General Information
Until now, choice absolute encoder meant expensive, largersized product. Through combinatorial mathematics, gray-code pattern Bourns Absolute Contacting Encoder ACEis placed single track very economical, energy-efficient compact product. Bourns' ACEprovides absolute digital output that will also retain last position event power failure. intelligent alternative incremental encoders potentiometers, Bourns ACEis ideally suited many industrial, automotive, medical consumer product applications.
Recommended Control Diagram ACE-128
RESNET 4609X101-472
"common" either decoded "select" (active low) GND.
ACETAB: byte code conversion table (ROM)
Electrical Characteristics
Output .8-bit gray code with absolute states Closed Circuit Resistance ohms maximum Open Circuit Resistance .100 ohms minimum Contact Rating milliamp watt maximum Insulation Resistance (500 VDC) .1,000 megohms minimum Dielectric Withstanding Voltage (MIL-STD-202 Method 301) Level .1,000 minimum Electrical Travel .Continuous Contact Bounce RPM) .2.7 milliseconds maximum* (Operating) .120 maximum
Environmental Characteristics
Operating Temperature Range .-40 (-40 +185 Storage Temperature Range .-40 (-40 +185 Humidity.MIL-STD-202, Method 103B, Condition Vibration Contact Bounce .0.1 millisecond maximum Shock Contact Bounce .0.1 millisecond maximum Rotational Life .50,000 shaft revolutions minimum Rating
Mechanical Characteristics
Mechanical Angle .360 Continuous Running Torque.0.5 N-cm (0.75 2.50 oz-in.) Mounting Torque.79 N-cm lb.-in.) maximum Shaft Side Load (Static) .4.5 lbs.) minimum Weight .Approximately gms. (0.50 oz.) Terminals .Printed circuit board terminals Soldering Condition Manual Soldering .96.5Sn/3.0Ag/0.5Cu solid wire no-clean rosin cored wire (700 max. seconds Wave Soldering .96.5Sn/3.0Ag/0.5Cu solder with no-clean flux (500 max. seconds Wash processes .Not recommended Marking .Manufacturer's name trademark, part number, date code. Hardware .One lockwasher mounting shipped with each encoder, except where noted part number. Packaging pcs./tray *High probability missing gray codes with maximum bounce.
*RoHS Directive 2002/95/EC 2003 including Annex Specifications subject change without notice. Customers should verify actual device performance their specific applications.
Absolute Contacting Encoder (ACETM)
Output Code ACE-128
Bit/Pin correlation: binary denotes "open" switch binary denotes "closed" switch. Positions 0-127 seen clockwise rotation shaft.
Position
Decimal Output
Position
Decimal Output
Specifications subject change without notice. Customers should verify actual device performance their specific applications.
Absolute Contacting Encoder (ACETM)
Dimensional Drawings
Bushing Mounted: Housing with Rear Facing Terminals
23.88 (.940) 22.2 (.874 .010) 1.19 (.047)
6.32 +0.03/-0.08 (.249 +.001/-.003) 19.05 (.750 .015) 6.35 (.250) 12.7 (.500) 11.1 (.437) 27.94 (1.100 .010) (.063) 8.51 (.335 .010)
9.02 (.355 .006)
14.9 (.587 .020) DIA.
1.52 (.060)
2.79 (.110)
13.97 (.550)
1.19 (.047) 0.75-6g DIA. (.354)
5.08 (.200)
0.64 0.03 (.025 .001) PLCS.
2.54 (.100) PLCS.
Bushing Mounted: Housing with Forward Facing Terminals
23.88 (.940) 22.2 (.874 .010) 1.19 (.047)
9.02 (.355 .006)
19.05 (.750 .015) 6.35 (.250) 12.7 (.500) 11.1 (.437) 27.94 (1.100 .010) (.063)
8.51 (.335 .010)
6.32 +0.03/-0.08 (.249 +.001/-.003)
14.9 DIA. (.587 .020)
1.52 (.060) 1.19 (.047) 0.75-6g DIA. (.354) 0.64 0.03 (.025 .001) PLCS. 2.54 (.100) PLCS.
2.79 (.110)
13.97 (.550)
2.54 (.100 .010)
Bracket Mounted: Housing
23.88 (.940) 22.2 (.874 .010) 1.19 (.047) 9.02 (.355 .006)
6.32 +0.03/-0.08 (.249 +.001/-.003)
12.7 (.500) 11.1 (.437) 17.07 (.672 .010) 2.79 (.110) 27.94 (1.100 .010) 13.97 (.550) 1.19 (.047)
(.063)
1.02 (.040)
18.54 (.730 .015)
23.37 (.920 .010)
0.75-6g DIA. (.354)
0.76 TYP. PLCS. (.030) 5.08 (.200) 0.64 0.03 (.025 .001) PLCS. 2.54 (.100)
0.51 (.020)
9.02 (.355)
Specifications subject change without notice. Customers should verify actual device performance their specific applications.
Absolute Contacting Encoder (ACETM)
Dimensional Drawings
Shaft Style
6.32 0.03/- 0.06 DIA. (.249 .001/- .003)
Shaft Style
5.54 .076 (.218 .003)
Shaft Style
6.00 DIA. (.236)
(.063)
1.19 (.047)
6.32 0.03/- 0.06 DIA. (.249 .001/- .003)
(.063)
DIMENSION EXTENDS FROM SHAFT BUSHING FACE (SHAFT LENGTH, FMS) (BUSHING LENGTH)
Bushing Mounted: Housing with Rear Facing Terminals
Bushing Mounted: Housing with Forward Facing Terminals
Panel Hole Dimensions
Board Hole Pattern w/PCB Bracket
2.54 TYP. (.100)
Board Hole Pattern w/PCB Bracket
2.54 TYP. (.100) (.375)
(.375)
9.93 DIA. (.391) 25.4 (1.00)
3.17 DIA. (.125)
3.17 DIA. (.125)
9.93 DIA. (.391) 25.4 (1.00)
DIA. PLCS. (.047)
DIA. PLCS. (.047)
Bracket Mounted: Housing
Panel Hole Dimensions
Board Hole Pattern w/PCB Bracket
5.08 PLCS. (.200) 2.54 TYP. (.100)
(.375)
9.93 DIA. (.391) 15.24 (.600) 25.4 (1.00)
TOLERANCES EXCEPT WHERE NOTED: .127 .XXX (.005) (.02) DIMENSIONS: (IN)
3.17 DIA. (.125)
DIA. PLCS. (.047) 11.43 PLCS. (.450)
Specifications subject change without notice. Customers should verify actual device performance their specific applications.
Absolute Contacting Encoder (ACETM)
Order
PART NUMBERING SYSTEM
RoHS IDENTIFIER Code Description Compliant Code Rotational Life 50,000 Revolutions PERFORMANCE CODE Code Detents States/Rev. E0128
BUSHING CONFIGURATION Code Description Length. Threaded M9x0.75 Length. Threaded M9x0.75 (Use shaft only.)
DETENT CONFIGURATION Code Description Non-Detented
HOUSING TERMINAL CONFIGURATION indicates "Equipped With") Code Features Rear Mount Terminals Forward Facing Terminals Bracket Hardware Included
ANTI-ROTATION POSITION Code Description 9:00 Position None
SHAFT LENGTH (FMS) Available Code Description Shaft Styles (19.05 Length Metric Length
SHAFT STYLE (See Outline Drawing Details) Code Description Plain with Inserted Slot (1/4 Dia.) Single Flatted (1/4 Dia.) Plain with Inserted Slot Dia.)
sample part number demonstrates identification code Bourns contacting encoders. part number shown commonly used model, typically available from stock. *Consult factory concerning special inquiries.
REV. 08/06 Specifications subject change without notice. Customers should verify actual device performance their specific applications.

*RoHS compliant Absolute encoder gray code output Digital output Sturd

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