HEDS-51X0/61X0 Series, HEDG-512X/612X Series HEDM-512X/61XX Series Two and Three Channel Codewheels for use with Avago Technologies Optical Encoder Modules Data Sheet Description Features: Codewheels Available in Glass, Film, and Metal Avago Technologies offers a wide variety of codewheels for use with Avago Technologies HEDS-9000, HEDS- Available in Two Standard Diameters 9100, HEDS-9040, and HEDS-9140 series Encoder Mod- Cost Effective ules. Designed for many environments, applications, Resolutions from 96 CPR to 2048 CPR and budgets, Avago Technologies codewheels are avail- able in Glass, Film, and Metal. These codewheels are For Use with HEDS-90XX/91XX Series Two and Three available in resolutions from 96 Counts Per Revolution Channel Encoders (CPR) to 1024 CPR on an 11 mm optical radius and 500 Lead Free to 2048 CPR on a 23.36 mm optical radius. Each of the three codewheel materials offers a certain advantage. Metal codewheels are the most versatile, with a temperature rating up to 100C, resolution to 512 CPR (28 mm diameter), as well as 2 and 3 channel outputs. Film codewheels offer higher resolution (up to 1024 CPR on a 28 mm diameter) with an operating tem- perature of 70C. Glass codewheels combine the best of film and metal, offer ing a temperature rating of 100C and resolutions to 1024 CPR on a 28 mm diameter. In addition, each material offers a specific reliability rat - ing. It is important to consider the specific application operating environment, long term operating condi- tions, and temperature ranges when choosing a code- wheel material. Also See: HEDS-9000/HEDS-9100 Encoder Module Data Sheet HEDS-9000/9100/9200 Extended Resolution Encoder Module Data Sheet HEDS-9040/9140 Three Channel Encoder Module Data Sheet HEDS-9700 Small Encoder Module Data SheetAbsolute Maximum Ratings It is important to consider the environment in which the codewheels will be used when selecting a codewheel material. In brief, metal codewheels are rugged, but do not offer higher resolution capabilities. Film codewheels allow higher resolution, but cannot endure the same temperatures and high humidity as metal. Glass code- wheels offer both high temperature and higher resolu - tion, but are also more expensive. Consider the follow- ing rating table when choosing a codewheel material. HEDS-XXXX HEDM-XXXX HEDG-XXXX Parameter Symbol Metal Codewheels Film Codewheels Glass Codewheels Storage T -40C to +100C -40C to +70C -40C to +100C S Temperature Operating T -40C to +100C -40C to +70C -40C to +100C A Temperature Humidity non condensing Velocity 30,000 RPM 30,000 RPM 12,000 RPM Shaft Axial Play 0.25 mm 0.175 mm 0.175 mm (0.010 in) (0.007 in) (0.007 in) Shaft Eccentricity 0.1 mm 0.04 mm 0.04 mm Plus Radial Play (0.004 in) TIR (0.0015 in) TIR (0.0015 in) TIR 2 2 2 Acceleration 250,000 Rad/Sec 250,000 Rad/Sec 100,000 Rad/Sec Recommended Operating Conditions HEDS-XXXX HEDM-XXXX HEDG-XXXX Parameter Metal Codewheels Film Codewheels Glass Codewheels Maximum Count Frequency 100 kHz 200 kHz* 200 kHz Shaft Perpendicularity 0.25 mm 0.175 mm 0.175 mm Plus Axial Play (0.010 in) (0.007 in) (0.007 in) Shaft Eccentricity Plus 0.1 mm 0.04 mm 0.04 mm Radial Play (0.004 in) TIR (0.0015 in) TIR (0.0015 in) TIR Note: Avago Technologies Encoder Modules are guaranteed to 100 kHz, but can operate at higher frequencies. See Encoder Module Data Sheet for specifications and output load recommendations. *HEDM-6140 is guaranteed to 100 kHz with the HEDS-9040 T00 module. 2