Optical Shaft Encoder
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Incremental Rotary Shaft |
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S5 |
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Features
Additional Documentation
Description
3D Model
Mechanical Drawings
Mechanical Specifications
Phase Relationship
Single-ended Electrical Specifications
Differential Electrical Specifications
Pin-outs
Compatible Cables / Connectors
Pricing & Ordering Information
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Features:
Additional Documentation:
View the PDF version of this data sheet.
Encoder FAQ
Description:
The S5 series optical shaft encoder is a non-contacting rotary to digital converter. Useful for position feedback or manual interface, the encoder converts real-time shaft angle, speed, and direction into TTL-compatible quadrature outputs with or without index. The encoder utilizes an unbreakable mylar disk, metal shaft and bushing, LED light source, and monolithic electronics. It operates from a single +5VDC supply.
Three shaft torque versions are available. The standard torque version and M6-option have a sleeve bushing lubricated with a viscous motion control gel to provide torque and a feel that is ideal for front panel human interface applications.
The NT-option (no torque added) has a sleeve bushing and a low viscosity lubricant (that does not intentionally add torque) for low RPM applications where a small amount of torque is acceptable.
The B-option and BM6-option have a ball bearing rather than a sleeve bushing for high speed, free spinning, and zero torque applications. The ball bearing options are recommended when a pulley, gear, or friction wheel drives the shaft. This eliminates the wear that would otherwise result from the side load even at slow speeds.
A secure connection to the S5 series encoder is made through a 5-pin (single-ended version) or 10-pin (differential version) finger-latching connector (sold separately). The mating connectors are available from US Digital with several cable options and lengths.
For differential version: the internal differential line driver (26C31) can source and sink 20mA at TTL levels. The recommended receiver is industry standard 26C32. Maximum noise immunity is achieved when the differential receiver is terminated with a 110 ohm resistor in series with a .0047f capacitor placed across each differential pair. The capacitor simply conserves power; otherwise power consumption would increase by approximately 20mA per pair, or 60mA for 3 pairs.
US Digital warrants its products against defects in materials and workmanship for two years. See complete warranty for details.
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Mechanical Drawing - Single-ended (S5S):
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Mechanical Drawing - Differential (S5D):
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Mechanical Specifications:
| Parameter | Sleeve Bushing (Standard or M6-option) |
Ball Bearing (B-option or BM6-option) |
| Acceleration | 250,000 rad/sec² | 250,000 rad/sec² |
| Vibration | 20 g. 5 to 2KHz | 20 g. 5 to 2KHz |
| Shaft Speed | 100 RPM max. continuous | 10,000 RPM max. continuous |
| Shaft Rotation | Continuous and reversible | - |
| Shaft Torque | 0.5 0.2 in. oz. 0.3 in. oz. max. (NT-option) |
0.05 in. oz. max. |
| Shaft Loading | 2 lbs. max. dynamic 20 lbs. max. static |
1 lb. max. |
| Bearing Life | - | (40/P)³ = life in millions of revs. where P = radial load in pounds |
| Weight Single-ended (S5S) Differential (S5D) |
1.01 oz. 1.28 oz. |
1.15 oz. 1.42 oz. |
| Shaft Runout | 0.0015 T.I.R. max. | 0.0015 T.I.R. max. |
Phase Relationship:
B leads A for clockwise shaft rotation, and A leads B for counterclockwise rotation viewed from the shaft side of the encoder (see the EM1 / HEDS page).
Single-ended Electrical Specifications:
For complete details see the EM1 / HEDS page.
Differential Electrical Specifications:
| Parameter | Min. | Typ. | Max. | Units | Notes |
| Supply | 4.5 | 5.0 | 5.5 | Volts | |
| Current Consumption - Index: 32 CPR | - | 28 | 53 | mA | No load |
| Current Consumption - Index: 720, 900, 1000, 1250 CPR | - | 56 | 59 | mA | No load |
| Current Consumption - Index: All Other Resolutions | - | 58 | 88 | mA | No load |
| Current Consumption - Non-index: <2000 CPR | - | 18 | 43 | mA | No load |
| Current Consumption - Non-index: >=2000 | - | 58 | 88 | mA | No load |
| Output Voltage - Sourcing to +5 | 2.4 | 3.4 | - | Volts | @ -20mA |
| Output Voltage - Sinking to Ground | - | 0.2 | 0.4 | Volts | @ 20mA |
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Pin-outs:
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Attention: For wire descriptions see the 5-pin Finger-latching or 10-pin Finger-latching Cables / Connectors page.
Compatible Cables / Connectors:
| Finger-latching | ||
| 5-pin | 10-pin | Description |
| CON-FC5-22* | CON-FC10 | Connector |
| CA-3133-1FT | - | Connector on one end with 4 12" wires |
| CA-3132-1FT | - | Connector on one end with 5 12" wires |
| CA-3131-6FT | CA-4217-6FT | Connector on one end of a 6' shielded round cable |
| - | CA-4174-6FT** | Same as CA-4217, but for L-option only (Avago compatible) |
| CA-3620-6FT | CA-3619-6FT | Connector on both ends of a 6' shielded round cable |
| - | CA-3807-6FT** | Same as CA-3619, but for L-option only (Avago compatible) |
| * 22 AWG is standard. 24, 26 and 28 AWG are also available. |
Attention:
Connectors page for more information.
Ordering Information:
*** Only available with differential version (S5D). **** Not available with NT-option (no torque added).
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