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2. LINEAR SCALES
2.1.3 Renishaw make linear encoders (linear scales) (INC type)
Specifications Reference
Contact Renishaw for the specifications of these linear encoders (linear scales).
Renishaw Encoder Section: TEL. (03) 5332-6023
Item Specifications
Model RGH26P RGH26Q RGH26R
System Optical system
Effective measurement length Maximum length 70000mm
Resolution 5 m1m0.5m
Accuracy (20 ) 3 m/m (when compensation is made between two points)
Supply power voltage 5V 5%
Current consumption Max.230mA
Rated response speed (Note 1) 4.0m/s 3.2m/s 1.6m/s
Maximum response speed 5.0m/s 4.0m/s 2.0m/s
Operating temperature range 0 to 55 (non-freezing)
Operating humidity range 10 to 90%RH (non-condensing)
Storage temperature range 20 to 70 (non-freezing)
Dust tightness water tightness IP50
Vibration resistance 100m/s
2
(55 to 2000H
Z
)
Shock resistance 1000m/s
2
(1/2sin, 11ms)
Output signal
Serial communication compatibility
(Z phase data included, serial communication of reference mark data is also is made) (Note 3)
Output cable Renishaw make N-15 PIN Dtype Dtype plug (0.5m)
Connection cable Refer to the standard connection example in Chapter 3 and fabricate the cable.
Note 1. Use at the rated speed or less.
2. A limit switch signal cannot be imported directly to the servo amplifier. When using a limit switch, use a photocoupler for
isolation.
3. A home position return cannot be made if there is no encoder (scale) home position (reference mark). Always provide an
encoder (scale) home position (reference mark).
Linear encoder (linear scale) unit structure Reference
RENISHAW
RGH26
Increasing direction Decreasing direction
Note 1. Always set an encoder (scale) home position (reference mark).
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