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Scancon
Type SCA787

Type SCA787

Product catalog summary

Mechanical Specifications
The SCA787 encoder features a housing made of aluminum or brass, with a cap of aluminum and a shaft of stainless steel or brass. It weighs approximately 15 grams, with the cable adding 50 grams per meter. The bearing life exceeds 1.9 x 10¹⁰ revolutions at rated load, and the maximum shaft speed is 12,000 rpm. The starting torque is less than 0.005 Nm at 25°C, and the shaft can handle axial and radial loads up to 10 N.

Electrical Specifications
This incremental encoder offers resolutions from 100 to 5,000 pulses per revolution (ppr). It operates on a supply voltage between 4.5 Vdc and 30 Vdc, with a maximum current of 35 mA without load. The output format includes two-channel quadrature with an index and optional complementary outputs. The encoder is protected against reverse polarity and output short circuits, and it meets EMC standards for industrial and residential environments.

Environmental Specifications
The operating temperature range is -20°C to +70°C, with a storage range up to +85°C. It can withstand shocks of 100 G for 11 ms and vibrations from 10-2000 Hz at 10 G. The enclosure has an IP 50 rating, suitable for environments without condensation.

Connection Options
The encoder can be connected via an 8-lead shielded cable or a 10-lead flat cable with an IDC connector. The standard cable length options are 0.5 m, 1 m, or 2 m.

Ordering Code
The ordering code for the SCA787 includes specifications for pulses per revolution, output type, shaft diameter, IP rating, cable length, and connector type. Custom options are available upon request.

Catalog excerpts

Automation / Micro Resolution: Supply Voltage: Output Voltage: Output Current: Frequency Response: Output Format: Phase Sense: Electrical Specifications Shaft Encoder - Mechanical Specifications Incremental 100 to 5.000 ppr (pulses per revolution) 4,5 Vdc min. to 30 Vdc max. (35 mA max. - no load) Low: 500 mV max. at 10 mA High: (Vin – 0,6) at -10 mA (Vin – 1,3) at -25 mA 25 mA max. load per output channel Housing: Aluminum / Brass Cap: Aluminum Shaft: Stainless Steel / Brass Encoder: ~ 15 gr (0,53 oz) Cable: 50 gr / meter (1,76 oz / meter) 200 kHz max. Two channel (A, B) quadrature with Index (Z) and optional complementary (A-, B-, Z-) outputs A leads B clockwise (CW) from the mounting end of the encoder Bearing Life: > 1,9 x 1010 revolutions at rated load Shaft Speed: Starting Torque: Mass Moment of Inertia: Shaft Loads: Environmental Specifications Operating Temp.: Gated with Channels A and B high Storage Temp.: Electrical Protection: Reverse polarity and output short circuit protected Enclosure Rating: IP 50 / Nema 5 (approx.) - flat cable Noise Immunity: Tested to EN61000-6-2 : 2005 (industrial environments) Electromagnetic compatibility (EMC) and EN 61000-6-3 : 2007 (residential, commercial, and lightindustrial environments) for Electromagnetic compatibility (EMC) Connection Options Cable: 8 leads (0,05 mm2, 30 AWG) twisted pairs; shielded Flat Cable: 10 lead flat cable with IDC connector = It is recommended, not to combine max. Value for all 3 parameters

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Type SCA787 Output waveform Disk Resolutions (pulses per revolution) Other options on request Pulses per revolution, min. 1 – max. 5.000 Channel tolerance Phase difference tolerance Z channel tolerance Mechanical Dimensions

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Output Terminations Standard Cable Flat Cable w/ IDC Connector Differential Output* Differential Output Inverted Output** Wire Color Pink Gray Green Yellow White Brown Red Blue * Hewlett Packard (HP) compatible ** ID # required for ordering IP 50 rating CE mark not available 0,5 m, 1 m, or 2 m cable length only

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Type SCA787 Ordering Code Shaft Length Cable Length Cable Takeout Differential Inverted (Flat cable option only Standard Cable Standard is 1 meter Specify length Flat Cable w/ IDC 0,5 meter 1,0 meter 2,0 meters Side (radial) Back (axial) Flat cable w/ IDC connector IDC on flat cable No Connector Other options on request: Please contact Scancon A/S See Accessories for drawings

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Type SCA787

Type SCA787

Catalog excerpts

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