MicroE Systems Mercury 1000 User Manual download pdf (Page 6)

SmartPrecision

Electronics Module

The Mercury 3000 encoder system includes a SmartPrecision

electronics module. This compact, fully-featured signal processing

system performs the following functions:

• Interpolation - up to 1024X with 28.8 million quadrature states / sec.

• Programmable interpolation level and output bandwidth

• Accuracy optimization - sensor signals are automatically optimized

to improve system accuracy and maximize repeatability

• Signal strength indication - red / yellow / green LEDs assist during

setup and provide diagnostics at a glance

• Index centering - centers the bi-directional index output pulse for

repeatability to +/-1LSB

• Low Signal/Over Speed alarm

• Power-indicating LED

• Computer interface - for programming and data acquisition using

SmartPrecision software

• Superior EMI / RFI immunity - CE compliant

• Mounting options - all electronics are within the EMI-shielded

connector housing and can be screwed directly into a mating

connector that is bulkhead mounted, or the module may be mounted

to the frame of your motion system and connected using an

extension cable

Programmable Interpolation

The electronics module has programmable interpolation that is

selectable over the range x4 to x1024 in integer steps, providing

output resolutions that can be matched to your application

requirements. This feature provides linear resolutions from 5µm to

0.020µm in convenient increments (e.g. x200 interpolation = 0.1µm)

and rotary resolutions from 6,600 CPR to 16.8M CPR. Specify the

interpolation value at the time of ordering or select the interpolation at

your site using SmartPrecision Software.

Programmable Maximum Output Frequency

For encoder applications combining high resolution and high speed,

the SmartPrecision electronics module supports up to 28.8 million

quadrature state changes per second**. By specifying the maximum

output frequency to match your controller's capability - ranging from

900,000 up to 28.8 million quadrature state changes per second - the

Mercury encoder system will never produce encoder counts faster than

your controller can read them. Specify the encoder’s maximum output

frequency at the time of ordering or select the setting at your site

using MicroE's SmartPrecision Software.

* The electronics module’s serial computer programming interface can be translated to be RS-232

compatible using the MicroE SmartPrecision Computer Interface Adapter or a voltage translation

circuit of your own design.

** “Quadrature state changes per second" is the reciprocal of "dwell time" or "edge separation". For

example, 28.8 million states per second = 0.035µsec dwell time.

Mercury 3000 Outputs:

15-pin high density Male D-sub connector

PIN FUNCTION

1 Reserved - Do not connect

2 Serial programming interface -transmit*

3 Serial programming interface -receive*

4 A- quadrature

5 A+ quadrature

6 Reserved - Do not connect

7 Reserved - Do not connect

8 Reserved - Do not connect

9 B- quadrature

10 B+ quadrature

11 Alarm

12 +5VDC

13 Ground

14 I+ index

15 I- index

Page 6 of 10

All Specifications are subject to change. All data is accurate to the best of our knowledge.

MicroE Systems is not responsible for errors.

Note: Contact MicroE for pin assignments and software

protocols for the high speed serial output version.

SmartPrecision module enclosure provides “Best-in-Class”

noise immunity for high noise environments.

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MicroE Systems Mercury 1000 User Manual Page 6

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