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Related Manuals for Renishaw RGH20
Summary of Contents for Renishaw RGH20
- Page 1 Installation guide M-9561-0005-05-C RGH20 encoder system...
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Page 2: Section 1 - Rgh20 Direct Output Readheads Readhead Description
Ensure readhead is set up correctly with a green LED indication over the full rotation or axis length yaw with respect to the axis of readhead travel before the RGH20 is attached. This can be done and that the reference mark actuator is fitted correctly. - Page 3 20 mm bend radius. Incremental signals Blue the RGH20 readheads have been designed to the relevant eMc standards (BS en 61000 BS en 55011) but must be correctly integrated to achieve eMc compliance. In particular, attention to shielding and earthing arrangements is essential.
- Page 4 Standard RS422A line receiver circuitry. *Maximum extension cable length: Contact Renishaw for further details on receiver termination for 3-state output. RGH20B - 100 m, RGH20D, X, Z - 50 m RGH20W, Y, H, I, O - 20 m Analogue output - type RGH20B IMPoRtAnt: The outer shield should be connected to the machine earth (Field Ground).
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Page 5: Section 2 - Rgh20F/Ref System
SectIon 2 - RGH20F/ReF system Alarm output The REF interface asserts the alarm output (E) for the following conditions:- System description Incremental signal level below 20% The RGH20F encoder system consists of a common readhead in standard or UHV compatible form, Incremental signal level above 135% coupled to the interface, which gives accurate, industry standard outputs. -
Page 6: Reference Mark Phasing
Red Orange Blank Limit switch note: Reference mark flashes only occur up to 100 mm/s traverse speed. A limit switch signal is output when the readhead sensor passes over the magnetic actuator. For full output specification refer to RGH20 Data sheet (L-9517-9125). -
Page 7: General Operating Specifications
For analogue outputs further 20 mA will be drawn when White 2, 9 12, 13 terminated with 120 Ω. Renishaw encoder systems must be powered from a 5 V dc Incremental Green supply complying with the requirements for SELV of standard signals Yellow EN (IEC) 60950. -
Page 8: Electrical Connections
SectIon 2 - RGH20F/ReF system electrical connections (continued) Grounding and shielding customer ReF Installation drawing electronics Dimensions in mm Inner shield ReF interface RGH20F Extension cable (except UHV) Output signals 0 V power Outer shield Pin 15 note: Inner shield must be note: Maximum cable length of 5 m connected to 0V at betweeen RGH20F and REF... - Page 9 Arrow indicates forward direction of readhead relative to ring >4 * Mount limit switch actuator with dimple facing readhead 15.6 (for RGH20 variants D, X, Z, W, Y, H, I, O, B) 11.3 (for RGH20 variant F) 22.5 2 mounting holes 13.5...
- Page 10 M3 x 0.5 x 8 Readhead optical centreline * Minimum full thread depth 15.6 (for RGH20 variants D, X, Z, W, Y, H, I, O, B) 11.3 (for RGH20 variant F) 13.5 >R20 dynamic bend radius >R10 static bend radius 22.5...
- Page 11 2000 - 10 nm I - 20 nm 4000 - 5 nm O - 10 nm Interface series Readhead series * Binary interpolation factors from x4 to x4096 also available note: Not all combinations are valid. Check valid options online at www.renishaw.com/epc...
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Page 12: Emc Compliance
Further information Propan-2-ol For further information relating to the installation of RGH20 readheads, see also the RGH20 Data sheet (L-9517-9125), RESR Installation guide (M-9559-0675), RESR Data sheet (L-9517-9128) and RSLM Installation guide (M-9672-9030). These can be downloaded from our website www.renishaw. - Page 13 *M-9561-0005-05* RenISHAW ® and the probe emblem used in the RENISHAW logo are registered trademarks of Renishaw plc in the UK and other countries. apply innovation is a trademark of Renishaw plc. 2001-2008 Renishaw plc All rights reserved Issued 0808...
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