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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)
Dimensional Drawing <100" travel (2540mm) (pdf)
Dimensional Drawing ≥100" travel (2540mm) (pdf)
Newall Linear Encoder Catalogue (4Mb pdf)
Specifications
|
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Output Signal | Fanuc serial absolute |
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Accuracy/Meter
|
±0.0004", ±0.0002", ±0.0001"(±10µm, ±5µm, ±3µm)
|
Resolutions
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10µm, 5µm, 1µm or 0.5µm
|
Scale Travels
|
4" to 137.8" (102mm to 3.5m)
|
Scale Diameter
|
0.601" (15.25mm)
|
Reader Head Dimensions
|
2.05"H x 5.16"L x 1.10"D (52mm x 131mm x 28mm)
|
Reference Marker
|
n/a
|
Maximum Traverse Rate
|
n/a
|
Power Supply
|
5VDC ±5%, <350mA
|
Shock (11ms)
|
100g (IEC 69-2-6)
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Vibration (55-2000Hz)
|
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
|
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, 0.5m (20") non-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
|
BS EN 61000-6-2 and BS EN 61000-6-4
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Options
|
---|
Resolutions
|
Custom resolutions available
|
---|---|
Armored Cable
|
Available on request
|
Connectors
|
• Honda PCR-E20FS (Fanuc)
• IP67 (NEMA 6) • None (flying lead) |
Cable Lengths
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3.5m (11.5') or 7m (22')
|
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.