Microe Mercury II 5000 Manuel d'utilisateur télécharger pdf (Page 20)

Appendix

Mercury II 5000 Series Encoders

Installation Manual and Reference Guide

6.0 Appendix

6.1 Specifications

System

Sensor Size

Scales:

 PurePrecision Laser Tape scale - available in

continuous lengths up to 30m.

 Linear glass scales for high accuracy.

 Rotary glass scales for rotary applications.

H: 11.03mm

W: 13.50mm

L: 38.50mm

Operating and Electrical Specifications

Grating Period

20µm

Agency Standards Conformance: In accordance with

Electromagnetic Compatibility Directive 2004/108/EC:

EN 55011:2007, EN 61000-4-2, -3, -6

Signal Period

20µm

SPI Interface Clock Speed: 25MHz - 50MHz

Max Sample Rate: 227,272 position reads/s - 50MHz clock

System

Resolution

5µm - 0.00122µm* in integer

interpolation steps (factory set or

user programmed using included

SmartPrecision II Software.

Power Supply: 5VDC ±5%

*Value rounded for readability. Use the formula

20µm/interpolation multiplier to calculate the

exact resolution in units of µm/count.

Note: MII5800Pa resolution is fixed at 1.2nm.

140mA (no outputs terminated)

180mA (A, B, I, and both limits

terminated)

172mA (all serial I/O connections

terminated)

Accuracy/Linearity

Cyclical Error

Tape

Scales:

Glass

Scales:

± 30nm typical over any 20µm

movement

± 20nm typical over any 20µm

movement

Temperature

Operating:

Storage:

0°C to 70°C

-20°C to 85°C

Tape Scale

Linearity:

± 5µm/m

Humidity:

10 - 90% RH non-condensing

Glass Scale Accuracy

EMI

CE Compliant

High Accuracy

Grade:

±1µm for scales up to 130mm

±2µm for scales from130mm to 1m

Shock:

300G 0.5 ms half sine (Sensor)

Vibration:

30G @ 17Hz

Sensor

Weight:

3g (Sensor without cable)

Standard

Accuracy

Grade:

 ±1.5µm for scales up to 130mm

 ±5µm for scales from 130mm to

Cable:

Double Shield

Maximum length: 10m (contact MicroE

Systems for applications >5m)

Diameter: 4.2mm

Flex Life: 20 x 10

cycles @ 20mm

bending radius

Note: Accuracy is the maximum error over the

specified movement when compared to a

NIST-traceable laser interferometer standard

used at room temperature. 

Rotary

Accuracy*

Scale O.D.

Micro

radians

Arc-

Seconds

Reliability Information

5 Year Expected Reliability: >99.8% under normal

operating conditions.

44.45mm

± 38

± 7.8

63.50mm

± 19

± 3.9

120.65mm

± 10

± 2.1

Note: *Based on ideal scale mounting concentricity.

Index: Built-in or stick-on; bi-directional, full speed.

Note: After power up, the index mark must be passed once at  1 m/s for proper operation.

Limits: Separate built-in or stick-on left and right limits.

Laser-written embedded index and limits available. Contact MicroE.

Note: Refer to the MII5000 Interface Drawings for additional dimensional details and important notes.

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Microe Mercury II 5000 Manuel d'utilisateur Page 20

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