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SCA34

Product catalog summary

Mechanical Specifications:
The SCA34 encoder features a housing made of aluminum and a cap of electroplated steel or aluminum for the flat cable option. The shaft is stainless steel, and the encoder weighs approximately 45 grams. It supports a shaft speed of up to 12,000 rpm and has a bearing life exceeding 1.9 x 10¹⁰ revolutions at rated load. The starting torque is less than 0.005 Nm at 25°C, and it can handle axial and radial shaft loads of up to 20 N.

Electrical Specifications:
The encoder operates on a supply voltage ranging from 4.5 Vdc to 30 Vdc, with a maximum output current of 25 mA per channel. It offers a resolution of 1 to 7500 pulses per revolution and a frequency response of up to 200 kHz. The output format includes two-channel quadrature with an index and optional complementary outputs. It is protected against reverse polarity and output short circuits and complies with EMC standards EN61000-6-2:2005 and EN61000-6-3:2007.

Environmental Specifications:
The operating and storage temperature range is -40°C to +85°C. The encoder can withstand shocks of 100 G for 11 ms and vibrations from 10-2000 Hz at 10 G. It has an enclosure rating of IP 64, with an option for IP 65, and IP 50 for the flat cable option.

Connection Options:
The encoder offers various cable options, including 8-lead differential and 5-lead standard cables, as well as flat cable options with M9 connectors. The standard cable length is 1 meter, with options for 0.5, 1.0, or 2.0 meters for flat cables.

Ordering Code:
The ordering code for the SCA34 encoder includes specifications for pulses per revolution, output type, shaft diameter and length, IP rating, cable length, and connector type. Options include standard, differential, and line driver outputs, with specific configurations for wind power applications.

Catalog excerpts

Automation / Mini Resolution: Supply Voltage: Output Voltage: Output Current: Frequency Response: Output Format: Phase Sense: Electrical Specifications Shaft Encoder - IP 64 (IP 65 option) (IP 50 for IDC connector option) Mechanical Specifications Incremental 1 to 7500 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 200 kHz max. Housing: Aluminum Cap: Electroplated Steel Aluminum (flat cable option) Shaft: Stainless Steel Encoder: ~ 45 gr (1,59 oz) Cable: 50 gr / meter (1,76 oz / meter) Bearing Life: > 1,9 x 1010 revolutions at rated load Shaft Speed: Starting Torque: Mass Moment of Inertia: Shaft Loads: 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 Environmental Specifications Operating Temp.: Gated with Channels A and B high Storage Temp.: ASIC Push pull and Differential OL7272 Push-pull and Differential Line Driver 26C31 Differential Line Driver 5V output (with 5V input) Reverse polarity and output short circuit protected Enclosure Rating: IP 64 / Nema 4 (approx.) IP 65 / Nema 4 (option) IP 50 / Nema 5 (approx.) - flat cable Electrical Protection: 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) - Differential 5 leads (0,14 mm2, 26 AWG) - Standard twisted pairs; shielded Flat Cable: 5-pin M9 - Standard 8-pin M9 - Differential 10 lead flat cable with IDC connector ** = It is recommended not to combine max. value for all 3 parameters.

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Type SCA34 Output waveform Disk Resolutions (pulses per revolution) Channel tolerance Phase difference tolerance Z channel tolerance Other options on request Pulses per revolution, min. 1 – max. 7.500 Mechanical Dimensions Toleances according to ISO 2768 f

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Industrial Encoders Flat Ribbon Cable with IDC connector

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Type SCA34 Output Terminations Flat Cable w/ IDC Connector Standard Cable Standard Output Channel A AB BZ ZVsup GND Differential Output Wire Color Green NC Yellow NC Gray NC Brown White Differential Output * Position Pink Gray Green Yellow White Brown Red Blue * Hewlett Packard (HP) compatible Standard Output Differential Output IP 50 rating CE mark not available 0,5 m, 1 m, or 2 m cable length only

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Type SCA34 Ordering Code Shaft Length Cable Length Cable Takeout Standard – Open Collector NPN Standard – Open Collector PNP *= Only Flat Cable Differential 26C31 Line Driver OL 7272 Line Driver Standard - with built-in TSM ** Standard Cable Standard is 1 meter Specify length Flat Cable w/ IDC 0,5 meter Side (radial) Back (axial) Flat cable w/ IDC connector Other options on request: Please contact Scancon A/S ** Designed specifically for Wind Power applications. See SCA24 COC under Industries – Wind Power – SCA24 for additional conformity standards

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