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SHG-AF Linear Encoder
This protocol is proprietary to Fanuc and available on all of their control systems. The controller makes a request for positional data and the encoder has to respond correctly with data within a strictly controlled time state. Developed to meet a wide range of feedback applications, the
SHG-AF absolute linear encoder provides a true absolute position immediately upon power-up. The encoder does not use batteries or static memory to retain the positional data. True position can be reacquired once power is applied, regardless of duration or power-off movements.
Click here to learn more about Newall's Inductive Encoder Technology
Download SHG-AF Linear Encoder Documents: SHG-AF Protocol (pdf)SHG-A_ Installation Manual (pdf)
Newall Linear Encoder Catalog (pdf)
SHG-AF Dimensional Drawing Under 100" (2540mm) (SHG-AF Dimensional Drawing Under 100" (2540mm))
SHG-AF Dimensional Drawing Over 100" (2540mm) (SHG-AF Dimensional Drawing Over 100" (2540mm))
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Specifications
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| Output Signal | Fanuc serial absolute |
|---|---|
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Accuracy/Meter
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±0.0004", ±0.0002", ±0.0001"(±10µm, ±5µm, ±3µm)
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Resolutions
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10µm, 5µm, 1µm or 0.5µm
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Scale Travels
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4" to 137.8" (102mm to 3.5m)
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Scale Diameter
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0.601" (15.25mm)
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Reader Head Dimensions
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2.05"H x 5.16"L x 1.10"D (52mm x 131mm x 28mm)
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Reference Marker
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n/a
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Maximum Traverse Rate
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n/a
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Power Supply
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5VDC ±5%, <350mA
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Shock (11ms)
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100g (IEC 69-2-6)
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Vibration (55-2000Hz)
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30g (IEC 68-2-27)
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Sample Period
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50µs
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Environmental Rating
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IP67, fully submersible (IEC 529) - Exceeds NEMA 6
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Operating Temperature
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32° to 131°F (0° to 55°C)
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Coefficient of Expansion
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12 x 10-6K
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Scale Material
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316 stainless steel
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Overall Scale Length
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Scale travel length + 10.2" (258mm)
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Standard Cable
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15 core, 11.5' (3.5m) armored
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Maximum Cable Length
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65.6' (20m)
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Standard Connector
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15 pin "D" type
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EMC Compliance
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BS EN 61000-6-2 and BS EN 61000-6-4
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Options
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|---|
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Resolutions
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Custom resolutions available
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|---|---|
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Non-Armored Cable
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PUR (polyurethane)
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Connectors
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• Honda PCR-E20FS (Fanuc)
• IP67 (NEMA 6) • None (flying lead) |
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Cable Lengths
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22' (7m) or 19.68" (0.5m)
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Quick and Easy Installation
The design of these linear encoders allow installment in almost any position, unlike glass-scale linear encoders, which usually need to be installed with the lip seal facing downwards to prevent contamination. Self-aligning fixing brackets allow virtually effortless scale mounting, needing only a single hole for each set of brackets.