PRODUCT SPOTLIGHT
Newall Adds Innovative Feature for Turning Applications

Newall Adds Innovative Feature for Turning Applications

Building on the feedback from our customers, Newall has added an innovative new feature to the DP700 DRO. Tool Datum Memory enhances the way tool offsets are used during turning operations when ...


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APPLICATION STORY
Newall Helps ESCO Achieve High Accuracy Under Harsh Conditions

Newall Measurement Systems Ltd has been supplying Esco (Switzerland), specialist manufacturer of automatic turning lathes, with their MHG-TT inductive linear encoders for over five years....


Absolute Encoders for Feedback for CNC/PLC: SHG-AB, SHG-AG, SHG-AS Linear Encoders

SHG-AB, SHG-AG and SHG-AS Linear Encoder

SSI (Synchronous Serial Interface) is a patented absolute encoder protocol invented by Max Stegmann GmbH. The transfer of position data is much faster than RS232 or RS485, making this protocol ideal for closed loop motion control. There are several variations of SSI currently available. Developed to meet a wide range of feedback applications, these absolute linear encoders provide 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-AB, SHG-AG, SHG-AS Linear Encoders Documents: SHG-AB and SHG-AG Protocol (pdf)
SHG-A2 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
Output Signal SHG-AB = SSI Binary - 24 data bits, no parity
SHG-AG = SSI Gray Code - 24 data bits, no parity
SHG-AS = SSI Gray Code - 24 data bits, even parity
Accuracy/Meter
±0.0004", ±0.0002", ±0.0001"(±10µm, ±5µm, ±3µm)
Resolutions
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)
Vibration (55-2000Hz)
30g (IEC 68-2-27)
Sample Period
50µs
Environmental Rating
IP67, fully submersible (IEC 529) - Exceeds NEMA 6
Operating Temperature
32° to 131°F (0° to 55°C)
Coefficient of Expansion
12 x 10-6K
Scale Material
316 stainless steel
Overall Scale Length
Scale travel length + 10.2" (258mm)
Standard Cable
15 core, 0.5m (20") non-armored 
Maximum Cable Length
65.6' (20m)
Standard Connector
15 pin "D" type
EMC Compliance
BS EN 61000-6-2 and BS EN 61000-6-4

 

 Options
Resolutions
Custom resolutions available
Armored Cable
Available on request
Connectors
• Honda PCR-E20FS (Fanuc)
• IP67 (NEMA 6)
• None (flying lead)
Cable Lengths
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.



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