Encoders                                                                 

RGH20 series
Readhead series for 20µm pitch RESR rings

The RGH20 readhead has been designed to work with all 20µm pitch RESR rotary rings. The compact body contains interpolation electronics to output a range of resolutions. Easy installation is achieved with the use of the set-up LED.

Encoder Cables
Extension cables for encoder systems

RGH20 readheads
Readhead for 20µm pitch RESR rings

RESR rings
'A' section profile

RESR low inertia rings
'B' section profile

Encoder cables
Extension cables for encoder systems

All readheads are available with a range of connectors to choose from. Extension cable can be purchased as required from Renishaw.

Permitted maximum cable length by readhead type :

1Vpp - 100m, 12µA - 30m, Digital - 20m+ (depending on exact model)

14 core - double screened extension cable - additional sensing cores enable the voltage monitoring at the readhead to ensure voltage drop over long distances can be compensated for. Suitable for all readheads.

8 core - double screened readhead cable - used with RGH24/25 series readheads.

12 core - double screened readhead cable - used with RGH22/41 series readheads.

RGH20 readheads
Readhead for 20µm pitch RESR rings

The RGH20 readhead is available in a range of industry standard digital and analogue outputs. The large range of readhead resolutions and RESR ring sizes allow for compatibility with industry standard encoders.

RESR rings
'A' section profile

The 'A' section profile RESR has the following features and benifits:-

• Angular resolution up to 0.01 arc seconds.
• Wide range of ring diameters
• Resolutions to provide compatibility with industry standard controllers - pulses per revolution, degrees / arc second and 2ⁿ
• Rugged one-piece construction
• High speed
• UHV compatible

RESR low inertia rings
'B' section profile

The 'B' section profile RESR has the following features and benifits:-

• Low mass, large internal diameter
• Ring diameters 100, 150 and 200mm
• Rugged one-piece construction
• High speed
• UHV compatible

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