Celera Motion MicroE Mercury II MII6500 User manual

©2018 Celera Motion 125 Middlesex Turnpike | Bedford, MA 01730-1409 USA
IM-1004 | REV181127 Tel: [phone] | [email protected]
Sensor Installation Manu
Mercury II™6000
Series Encoders
Sensor Installation
Manual and
Reference Guide
>CELERAMOTION

Table of Contents
IM-1004 | REV181127 Page i ©2018 Celera Motion
Mercury II 6000 Series Encoders
Sensor Installation Manual and Reference Guide
Table of Contents
1.0Introduction ...................................................................................................................................... 1
1.1Overview ............................................................................................................................. 1
1.2Precautions ......................................................................................................................... 1
1.3Laser Safety Information.....................................................................................................1
1.4Standards Compliance........................................................................................................ 2
1.5Related Documentation ...................................................................................................... 2
1.6Manual Revisions................................................................................................................ 2
1.7Trademarks ......................................................................................................................... 2
2.0Before Installation ............................................................................................................................ 3
2.1Power Recommendations................................................................................................... 3
2.2Installation Considerations..................................................................................................3
2.3Items Required for Installation ............................................................................................ 3
3.0System Overview ............................................................................................................................. 4
3.1System View ....................................................................................................................... 4
3.2Expanded View ................................................................................................................... 4
3.3SmartPrecision Alignment Tool........................................................................................... 5
4.0Sensor Installation............................................................................................................................ 6
4.1Sensor Mounting Orientation and Tolerances .................................................................... 6
4.2Verify Sensor Mounting Surface Height.............................................................................. 6
4.3Install Sensor ...................................................................................................................... 6
5.0Sensor Alignment and Calibration ................................................................................................... 7
5.1Using the Cal. Pushbutton .................................................................................................. 8
5.1.1Sensor Alignment................................................................................................... 8
5.1.2Sensor Calibration ............................................................................................... 10
5.2Using the Software............................................................................................................ 13
5.2.1Connect the Alignment Tool and Encoder ........................................................... 13
5.2.2Use the FindMII Program to Locate the Encoder ................................................ 14
5.2.3Sensor Alignment and Calibration ....................................................................... 15
6.0Alignment Verification with Connector LEDs ................................................................................. 18
7.0Appendix ........................................................................................................................................ 19
7.1Specifications .................................................................................................................... 19
7.2Resolution and Maximum Speed Tables .......................................................................... 21
7.3Wiring Diagrams................................................................................................................ 24
7.4Customer Interface............................................................................................................ 26
7.5Serial Interface Specifications........................................................................................... 29
7.6Index Speed Considerations............................................................................................. 35
7.7RS-422 Compliance .......................................................................................................... 36
7.8Troubleshooting ................................................................................................................ 37
8.0Order Guide ................................................................................................................................... 38
9.0Contacting Celera Motion............................................................................................................... 42

Introduction
IM-1004 | REV181127 Page 1 ©2018 Celera Motion
Mercury II 6000 Series Encoders
Sensor Installation Manual and Reference Guide
1.0 Introduction
1.1 Overview
The instructions in this manual apply to the following Mercury II 6000 Series Encoders:
MII6500 MII6700 MII6800
MII6800Si MII6800Pa
Refer to the Mercury II 6000 Series Encoder data sheet for additional details on ordering parts.
1.2 Precautions
1. Follow standard ESD precautions. Turn power to off before connecting
the sensor.
2. Do not touch electrical pins without static protection such as a grounded
wrist strap.
1.3 Laser Safety Information
This product is sold solely for use as a component (or replacement) in an electronic product;
therefore, it is not required to, and does not comply with U.S. FDA 21 CFR 1040.10 and 1040.11
which pertain to complete laser products. The manufacturer of the complete system-level
electronic product is responsible for complying with 21 CFR.
MicroE Systems encoders contain an infrared laser diode or diodes. Emitted invisible laser
radiation levels have been measured to be within the CDRH Class 1 range, which is not
considered hazardous; however, to minimize exposure to the diverging beam, install the encoder
sensor in its operational configuration in close proximity to the encoder scale before
applying power.
Invisible laser radiation; wavelength: 850 nm.
Maximum power of 4.8 mW CW for Mercury II.
Caution: The use of optical instruments with this product will increase eye hazard. Do
not view directly with optical instruments (microscopes, eye loupes, or magnifiers).
All maintenance procedures such as cleaning must be performed with the MicroE encoder
turned off.
Do not insert any reflective surface into the beam path when the encoder is powered.
Do not attempt to service the MicroE encoder.

Introduction
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Mercury II 6000 Series Encoders
Sensor Installation Manual and Reference Guide
1.4 Standards Compliance
Mercury II models are CE and RoHS compliant.
1.5 Related Documentation
Mercury II 6000 Series Encoders Data Sheet
Mercury II 6000 Series Encoders Interface Drawings
Mercury II PurePrecision Tape and Glass Scale Installation Manual
1.6 Manual Revisions
V
ersion Date Notes
Rev. 1 11/21/2014 Initial Release. Combines coverage for entire series of Mercury II 6000
Encoders.
Rev. 1A 11/30/2015 Correction on page 30: changed A6 to A
6
for CRC Bits section. Updated
document to Celera Motion standards. Updated Manual Revisions table.
180131 01/31/2018 Correction to ordering code.
181127 11/27/2018 Changed Section 4.2 scale to sensor Z-height tolerance.
1.7 Trademarks
Mercury II™, PurePrecision™, and SmartPrecision™ are trademarks of MicroE Systems®.
1.8 Special Conventions Used
The following symbols may be used in this document.
Symbol Description
Warning or caution: potential damage to parts.
Instructions show correct method.
Instructions show example of incorrect method.
See Section 2.2 Single click with the mouse on these highlighted references
to jump to specified places in instructions.

Before Installation
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Mercury II 6000 Series Encoders
Sensor Installation Manual and Reference Guide
2.0 Before Installation
Review the items in this section prior to installing the encoder.
2.1 Power Recommendations
Mercury II encoders require a minimum of 4.75 VDC continuously.
When designing circuits and extension cables to use Mercury II encoders, be sure to
account for voltage loss over distance and tolerances from the nominal supply voltage so
that at least 4.75 VDC is available to the Mercury II encoder under all operating conditions.
The input voltage should not exceed 5.25 VDC.
2.2 Installation Considerations
The Mercury II encoder is a precision electronic instrument. It has been designed to function in a
wide range of applications and environments. To take full advantage of the Mercury II modular
system design, considerations should be made to allow easy access to the sensor (and
interpolator modules where applicable) for service and/or replacement. For optimal performance
and reliability:
DO follow standard ESD precautions while handling the sensor and interpolator.
DO allow proper clearance for sensor head alignment.
DO follow setup and calibration instructions for the encoder system.
DO, where possible, install the scales in an inverted or vertical position to minimize
accumulation of dust.
DO NOT store sensors in an uncontrolled environment.
DO NOT electrically overstress the sensor (power supply ripple/noise).
DO NOT intentionally “hot swap” the sensor if the device is energized.
DO NOT use in high contamination applications (dust, oil, excessive humidity, or other
airborne contaminants).
2.3 Items Required for Installation
In addition to the items identified in Section 3.0 System Overview, you will need the following
items available for installation:
Items Required for Installation
Item Tape Scale Glass Scale
Index and Limit Marker sheets  
Hex Wrench for Sensor Mounting Screws  
Finger Cots or talc-free gloves  
Acetone or isopropyl alcohol  
Lint-free cotton cloths or wipes  
Two-part epoxy (Tra-Bond 2116 or equivalent)  
Stick and disposable surface for stirring epoxy  
Shears 
Tape Applicator Tool* 
Silicone adhesive 
Note*:Not required for some installations.

System Overview
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Mercury II 6000 Series Encoders
Sensor Installation Manual and Reference Guide
3.0 System Overview
This section identifies parts for the sensor installation.
3.1 System View
3.2 Expanded View
Index Marker15-Pin Male
D-Sub Connector
Double-Shielded
Cable
Left Limit Marker
Scale Mounting Surface Reference Edge (Benching Surface)
Tape Scale: shown mounted on
a fixed (non-moving) substrate.
Sensor: shown mounted on
a linear bearing using a
mounting bracket.
Alignment Tool
Sensor Connector
Mounting Screws
Typical User-Supplied
Sensor Mounting Bracket
Sensor Mounting Holes
Sensor Benching Pins
Bracket Mounting Holes
Right Limit Marker
Alignment Tool Adapter

System Overview
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Mercury II 6000 Series Encoders
Sensor Installation Manual and Reference Guide
3.3 SmartPrecision Alignment Tool
The Mercury II ATMII5000 SmartPrecision Alignment Tool is required for aligning the Mercury II
6000 Series Encoders. The Alignment Tool includes the following:
Alignment Tool
SmartPrecision
II Software
USB Cable
Power Supply
For more details, see Sensor Installation Tools in Section 8.0 Order Guide for more details.
Mercury II 5000 Alignment Tool LEDs
LED Function
Power/Cal. Indicates power is on and when in
alignment mode
Red Signal Strength Indicates improper alignment
Yellow Signal Strength Indicates improved alignment
Green Signal Strength Indicates proper alignment
Left Limit Blinks in Alignment Mode and when
sensor is located over left limit
Right Limit Blinks in Alignment Mode and when
sensor is located over right limit

Power/Cal. LED
15 Pin D-Sub
Sensor Connector
Left Limit LED
Cal. Pushbutton
Ethernet Connector
Alignment Tool
Ada
p
te
r
Red Signal Strength LED
Yellow Signal Strength LED
Green Signal Strength LED
Right Limit LED
Alignment Tool
Power Supply
Connect

Sensor Installation
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Mercury II 6000 Series Encoders
Sensor Installation Manual and Reference Guide
4.0 Sensor Installation
This section contains instructions for installing the sensor.
4.1 Sensor Mounting Orientation and Tolerances
Refer to the following specifications when installing and aligning the sensor.
Orientation
Tolerances
Mercury II 6000
Sensor Alignment Tolerances
Axis Alignment Tolerance
X Direction of Motion
Y ± 0.20 mm
Z ± 0.15 mm
X ± 1.0°
Y ± 1.0°
Z ± 2.0°

4.2 Verify Sensor Mounting Surface Height
Step Action
1. Verify that the vertical distance between the reference surface of the sensor and the top of the
scale is as follows:
Tape scale/marker tape after blue protective film is removed: 3.09 mm +/-0.15
Linear or rotary glass scales: 2.93 mm +/-0.15
2. Check the height at a location on the scale where there are no index or limit markers.
4.3 Install Sensor
Step Action
1. Install the sensor on the mounting surface referencing the appropriate datum surface as
shown in the MII6000 Interface Drawings. Use two M-2 screws to loosely attach the sensor.
Note: Do not tighten the two M2 screws at this time.
2. Use benching pins to locate the sensor if the system's mechanical tolerances are adequate.
Refer to the MII6000 Interface Drawings for recommended locations and heights of pins.
Sensor Axes

Sensor Alignment and Calibration
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Mercury II 6000 Series Encoders
Sensor Installation Manual and Reference Guide
5.0 Sensor Alignment and Calibration
After installing the MII6000 encoder, use the SmartPrecision Alignment Tool ATMII5000 to align
and calibrate the sensor using one of the following methods:
Calibration (Cal.) Pushbutton: if you don’t have access to a computer or are very
experienced at performing encoder alignment and calibration.
SmartPrecision II Software: if you have access to a computer and either are new at
performing encoder alignment and calibration or want to take advantage of the graphic
interface.
Select a method:
Method Description
1.
Use the Calibration (Cal.) Pushbutton:
Align and calibrate the sensor head using the Calibration (Cal.) pushbutton and the LED
indicators on the Alignment Tool.
Continue to Section 5.1 Using the Cal. Pushbutton.
2.
Use the SmartPrecision II Software*:
Align and calibrate the sensor head using the Alignment Tool and the SmartPrecision II
Software.
Continue to Section 5.2 Using the Software.
Note*: The SmartPrecision II Software is built in to the Alignment Tool ATMII5000 for setup
and diagnostics; only a web browser is needed (use of software is optional). See
Sensor Installation Tools in Section 8.0 Order Guide for more details.
Access to Cal.
Pushbutton
Alignment Tool
LED Indicators
SmartPrecision II Screen

Sensor Alignment and Calibration
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Mercury II 6000 Series Encoders
Sensor Installation Manual and Reference Guide
5.1 Using the Cal. Pushbutton
Use the following instructions to perform sensor alignment and calibration by using the Cal.
Pushbutton located on the ATMII5000 Alignment Tool.
5.1.1 Sensor Alignment
Note: Make sure that the 5 VDC power input is disconnected. Encoder should never be
connected to an already energized alignment tool since equipment can be damaged.
Step Action
1. Connect the MII6000 encoder to the SmartPrecision Alignment Tool.
2. Insert the 5 VDC power connector to the Alignment Tool Adapter and apply power.
Result: The Power/Cal. LED illuminates a steady green. The sensor is initialized after an
approximate 10 second delay.
3. Enter the Alignment Mode by gently pressing and releasing the Cal. pushbutton quickly (within
a second) using a small screwdriver or similar tool.
Result: The two Limit LEDs will begin to blink in unison (slowly). Automatic Gain Control
(AGC) is now inactive. The AGC adjusts gain to maintain a steady signal level.
Alignment Tool
5 VDC Power
Alignment Tool Adapter
Encoder
Sensor Connector
Alignment Tool
Power/Cal. LED
Access to Cal.
Pushbutton
Limit LEDs
(
two
)
Screwdrive
r