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SCA41

Product catalog summary

Mechanical Specifications:
The SCA41 encoder features an aluminum housing and electroplated steel or aluminum cap, with a stainless steel shaft. It weighs approximately 50 grams, with an additional 50 grams per meter for the cable. 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 20 N.

Electrical Specifications:
The encoder operates on a supply voltage between 4.5 Vdc and 30 Vdc, with a maximum current of 35 mA without load. It provides incremental output with resolutions from 1 to 7500 pulses per revolution (ppr). The output format includes two-channel quadrature with an index and optional complementary outputs. It supports a frequency response up to 200 kHz and is protected against reverse polarity and output short circuits. The device is compliant with EN61000-6-2:2005 and EN61000-6-3:2007 for EMC.

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

Connection Options:
The encoder offers various cable options, including 8-lead differential and 5-lead standard cables, as well as a 10-lead flat cable with an IDC connector. The standard cable lengths are 0.5 m, 1 m, or 2 m.

Output Waveform and Resolutions:
The encoder supports multiple disk resolutions ranging from 1 to 7500 ppr, with specific tolerances for channel and phase differences.

Ordering Code:
The ordering code for the SCA41 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: 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: ~ 50 gr (1,76 oz) Cable: 50 gr / meter (1,76 oz / meter) > 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 Noise Immunity: Bearing Life: Gated with Channels A and B high Electrical Protection: Mechanical Specifications Electrical Specifications Shaft Encoder - 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 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) Environmental Specifications Operating Temp.: Storage Temp.: Enclosure Rating: IP 64 / Nema 4 (approx.) IP 50 / Nema 5 (approx.) - flat cable Connection Options Cable: 8 leads (0,05 mm2, 30 AWG) - Differential 5 leads (0,14 mm2, 26 AWG) - Standard 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 SCA41 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

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Industrial Encoders Flat Ribbon Cable with IDC connector

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Type SCA41 Output Terminations Flat Cable w/ IDC Connector Standard Cable Standard Output Channel A AB BZ ZVsup GND Differential Output Differential Output * Wire Color Green NC Yellow NC Gray NC Brown White Pink Gray Green Yellow White Brown Red Blue * Hewlett Packard (HP) compatible IP 50 rating CE mark not available 0,5 m, 1 m, or 2 m cable length only Standard Output mm (inches) mm (inches) mm (inches) Differential Output

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Type SCA41 Ordering Code ** Designed specifically for Wind Power applications. See SCA24 COC under Industries – Wind Power – SCA24 for additional conformity standards testing. TSM = Transient Suppression Module Available only as Standard output Shaft Length Cable Length Cable Takeout See table IP 64 IP 50 Standard Standard – Open Collector NPN Standard – Open Collector PNP Differential 26C31 Line Driver 5V only OL 7272 Line Driver Standard - with built-in TSM ** Standard Cable Standard is 1 meter Specify length Flat Cable w/ IDC 0,5 meter 1,0 meter 2,0 meters * = Only Flat Cable 6.0 mm 6.0 mm...

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