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Mercury TM 1500P PCB-Mount Digital Encoders
Factory Set Resolution to 0.50m
Reflective Linear and Rotary Encoders
Resolution Factory Set:
Sensor the size of a Dime x4, x8, x20, or x40 Linear: 5m, 2.5m, 1.0m, or 0.50m Rotary: 6,600 to 655,000 CPR
Accuracy
Linear: 1m available 3m to 5m standard Rotary: Up to 2.1 arc-sec
Output
A-quad-B and Digital Index Window
The Mercury 1500P encoder is a digital output system. Designed for PC board mounting, it is available with linear or rotary scales. Mercury's space-saving, integrated configuration gives OEM system designers a breakthrough in performance.
Imagine what you can do with this!
OEMs can now use encoders for closed loop control where it was previously not possible or cost effective. Engineers can achieve dramatic improvements in system speed, throughput, and reliability, while reducing cost, size and weight. The Mercury 1500P series kit encoders make it all possible. The digital output sensors mount directly on your printed circuit board within an EMI shielded module. The low Z height of the sensor, only 5.6mm, opens up exciting design possibilities.
Table of Contents
System & Sensor pg . 2 Specifications pg 3 -4 Scales pg . 5 - 6 Ordering Information pg. 6
Standard Features
* Small PCB mount sensor * Sensor is 5.6mm (H) x 12.7mm (W) x 15.2mm (L) and weighs 2.6g * Resolution: Linear 5, 2.5, 1.0, 0.5m; Rotary 6,600 to 655,000 CPR * Digital Differential Outputs: A-quad-B and Index window * Bi-directional Index window signal * Index mark at the center or end of the glass scale (linear)
Optional features
* Glass scale length or diameter: Linear lengths from 5mm to 2m Rotary diameters from 12mm to 108mm
Broader Alignment Tolerances, Increased Standoff Clearance, Smallest Sensor and More
Why Mercury Encoders Make It Easier To Design High Performance Into Your Equipment Eliminate the Frustration of Touchy Encoder Alignment Mercury Solves this Problem for Good
Fussy alignment is no longer a concern. With Mercury's patented PurePrecisionTM optics, advanced SmartPrecisionTM electronics and LED alignment indicators, you can push the sensor against your reference surface, tighten the screws and you're finished. Try that with brand X or Y. This performance is possible thanks to relaxed alignment tolerances, particularly in the theta Z axis. Mercury offers a 2 sweet spot- that's a 300% improvement over the best competitive encoder. And that will result in dramatic savings in manufacturing costs. No other commercially available encoder is easier to align, easier to use, or easier to integrate into your designs.
Theta Z Alignment Tolerance
2
0.5
0.006
Mercury
Brand Y
Brand X
Alignment Tolerance Comparison**
Z Standoff Y theta X theta Y theta Z Mercury* 0.15mm 0.20mm for linear _ 0.10mm for rotary > 19mm dia. 1.0 2.0 2.0 Brand X 0.1mm 0.1mm unspecified 0.1 0.006 Brand Y 0.1mm unspecified 1.0 1.0 0.5 Mercury vs. Best Competitor Mercury is 50% better Mercury is 100% better
Mercury is 100% better Mercury is 300% better
*Measured at a constant temperature for one axis at a time with all other axes at their ideal positions. **Based on published specifications
Mercury Can Reduce System Size and Cost
Mercury's sensor height is 44% shorter than competitive encoders, making it easy to fit into your design. This reduction can also cut total system weight and cost by allowing the use of smaller motors and stages. Safe system operation is also enhanced thanks to Mercury's generous standoff clearance- 200% greater than other encoders. And it's standoff tolerance is 50% greater than the best alternative. This significantly relaxes mechanical system tolerances, while reducing system costs.
Standoff Clearance
Mercury
2.4mm* 0.15mm
Brand Y
Mechanical Dimension Comparison**
Sensor Z height Standoff clearance Standoff tolerance System height Mercury Brand X Brand Y Mercury vs. Best Competitor 8.4mm 23mm 15mm 44% better 2.4mm 0.5mm 0.8mm 200% better 0.15mm 0.1mm 0.1mm 50% better 11.7mm 28.5mm 15.8mm 26% better
Brand X
0.8mm 0.1mm
**Based on published specifications
0.5mm 0.1mm
* Dimensions shown illustrate encoder system standoff clearance; see Mercury Encoder Interface Drawings for correct design reference surfaces.
Note: Mercury 1500P is even smaller at 5.6mm sensor height
Page 2 of 5
System Specifications
Resolution and Maximum Speed
Mercury 1500P systems have factory set interpolation: x4, x8, x20, x40. Below is the table of available resolutions.
Linear - 20m grating pitch
Interpolation Resolution Maximum Speed
x4 x8 x20 x40
5.000m/count 2.500m/count 1.000m/count 0.500m/count
7200mm/s 7200mm/s 7200mm/s 7200mm/s
Rotary - 20m grating pitch
Rotary Glass Scale Diameter Fundamental Resolution Interpolation Below is a table of the available resolutions.
0.472" [12.00mm]
1650 CPR interpolated resolution (CPR) interpolated resolution (arc-sec/count)* interpolated resolution (rad/count)* maximum speed (RPM)
x4 6,600 196.4 952 13090 x4 10,000 129.6 628 8640 x4 16,384 79.1 383 5273 x4 32,768 39.6 191.7 2637
x8 13,200 98.2 476 13090 x8 20,000 64.8 314 8640 x8 32,768 39.6 191.7 5273 x8 65,536 19.78 95.8 2637 x8 131,072 9.89 47.9 1318
x20 33,000 39.2 190.3 13090 x20 50,000 25.9 125.6 8640 x20 81,920 15.82 76.6 5273 x20 163,840 7.92 38.3 2637 x20 327,680 3.96 19.16 1318
x40 66,000 19.64 95.2 13090 x40 100,000 12.96 62.8 8640 x40 163,840 7.91 38.3 5273 x40 327,680 3.96 19.17 2637 x40 655,360 1.978 9.58 1318
0.750" [19.05mm]
2500 CPR interpolated resolution (CPR) interpolated resolution (arc-sec/count)* interpolated resolution (rad/count)* maximum speed (RPM)
1.250" [31.75mm]
4096 CPR interpolated resolution (CPR) interpolated resolution (arc-sec/count)* interpolated resolution (rad/count)* maximum speed (RPM)
2.250" [57.15mm]
8192 CPR interpolated resolution (CPR) interpolated resolution (arc-sec/count)* interpolated resolution (rad/count)* maximum speed (RPM)
4.250" [107.95mm] 16384 CPR
x4 interpolated resolution (CPR) 65,536 interpolated resolution (arc-sec/count)* 19.78 interpolated resolution (rad/count)* 95.8 maximum speed (RPM) 1318
* Resolution values shown are approximate. To calculate exact resolution values, convert from CPR (Counts Per Revolution) to the desired units. Note: Specifications assume XOR function which is available in all standard controllers. All Specifications are subject to change. All data is accurate to the best of our knowledge. MicroE Systems is not responsible for errors.
Page 3 of 6
System Specifications
System
Grating Period 20m System Resolution 5m, 2.5m, 1.00m, or 0.50m (linear) Linear Accuracy* Better than 1m** available; contact MicroE Better than 3m** up to 130mm, 5m from 155mm to 1m, 5m per meter from 1m to 2m
*Maximum peak to peak error over the specified movement when compared to a NIST-traceable laser interferometer standard, used at room temperature and with MicroE interpolation electronics. **Or +/- one quadrature count, whichever error value is greater.
Mercury 1500P Outputs
10-pin interface
PIN 1 2 3 4 5 6 7 8 9 10 FUNCTION BB+ Sin + * Cos + * + 5 V DC Index Window + Index Window A+ AGround
Rotary Accuracy* Scale O.D. 12.00mm 19.05mm 31.75mm 57.15mm 107.95mm
Microradians** 100 63 38 19 10
Arc-Seconds** 21 13 7.8 3.9 2.1
*Based on ideal scale mounting concentricity **Or +/- one quadrature count, whichever error value is greater.
* Analog outputs are for sensor alignment only.
Output Signals**
Sensor Size
W: L: H: 12.70mm 15.24mm 5.59mm 0.500" 0.600" 0.220"
Pins 8 & 9 Pins 2 & 1 A B
Quadrature TTL
Operating and Electrical Specifications
Power Supply Temperature Operating: Storage: Humidity: Shock: Sensor Weight: 5VDC 5% @ 33mA1
Resolution
0 to 70C -20 to 70C 10 - 90% RH non-condensing 1500G 0.5 ms half sine (Sensor) 2.6g
Index Window
20m Typical
Pins 6 & 7
5VDC
** Inverse signals not shown for clarity.
1 Note: a voltage regulator on the customer's printed circuit board, such as Analog Devices' ADP 3334 or equivalent, is recommended at the 5V input to the encoder for maximum reliability.
Alignment Signals
20m
Pins 3 & 4
800mVp-p 25% on a 1.7V DC offset.
Mechanical Information - Sensor
.126 3.21 PI N 1 .050 1.28 PIN SP ACING PI N 5
90
.600 15.24 .069 1.75 2X 0-80UNC-2B THRU. .295 7.49 .344 8.75 .500 12.70 .148 3.76
.162 4.11 .220 5.59
.330 8.38 PI N 10 .183 4.65 PI N 6
.096 2.44
4X R.047 1.19 .348 8.85
All Specifications are subject to change. All data is accurate to the best of our knowledge. MicroE Systems is not responsible for errors.
Page 4 of 6
Scale Specifications
Standard and Customized Scales
MicroE Systems offers a wide array of chrome on glass scales for the highest accuracy and best thermal stability. Easy to install, standard linear and rotary scales meet most application requirements. Customized linear, rotary, and rotary segment scales are available where needed. All scales include an optical index. Mercury's glass scales save time by eliminating motion system calibrations or linearity corrections required by other encoders, and provide better thermal stability than metal tape scales. Options include: * Standard linear: 18mm - 2m * Standard rotary: 12mm - 107.95mm diameter, with or without hubs * Custom linear*: special lengths, widths, thickness, index mark locations and special low CTE materials * Custom rotary*: special ID's, OD's (up to 304.8mm), index mark outside the main track and special low CTE materials * Mounting of hubs for rotary scales: MicroE Systems can mount and align standard, custom, or customer-supplied hubs * Rotary segments*: any angle range; wide range of radius values *Custom scales or rotary segments are available in OEM quantities. Contact your local MicroE Systems sales office.
Standard Short Linear Scales
130mm and Shorter
Key: inches[mm]
0.036 [0.9] Scale Length Measured Length is always 5 mm less then total length 0.250 [6.35] End Index Center Index
Model Scale Length Measured Length
L18 0.709 [18] 0.512 [13]
L30 1.181 [30] 0.984 [25]
L55 2.165 [55] 1.969 [50]
3m standard 1m available Material Soda lime glass Typical CTE 8ppm/C Index Center or End L80 L105 L130 3.150 [80] 4.134 [105] 5.118 [130] 2.953 [75] 3.937 [100] 4.921 [125]
Specifications Accuracy
Custom scales available
Standard Long Linear Scales
155mm and Longer
Key: inches[mm]
0.098 [2.5] Scale Length Measured Length is always 5 mm less then total length 0.787 [20.00] Center Index
Specifications Accuracy Material Typical CTE Index
End Index
5 m <1m 5 m/m >1m Soda lime glass 8ppm/C Center or End
Model Scale length Measured length
L155 6.102 [155] 5.906 [150]
L225 8.858 [225] 8.661 [220]
L325 12.795 [325] 12.598 [320]
L425 16.732 [425] 16.535 [420]
L525 20.669 [525] 20.472 [520]
L1025 L2025 40.354 [1025] 79.724 [2025] 40.157 [1020] 79.528 [2020]
Custom scales available
All Specifications are subject to change. All data is accurate to the best of our knowledge. MicroE Systems is not responsible for errors.
Page 5 of 6
Standard Rotary Scales
HUB THICKNESS SCALE PATTERN SCALE O.D.
HUB I.D. MOUNTING HOLES OPTICAL DIAMETER
Specifications Material Typical CTE
Soda lime glass 8ppm/C
Key: inches[mm]
Model No. Scale Outer Diameter Scale Inner Diameter Optical Diameter Hub Inner Diameter +.0005/-0.0000 Hub Thickness Fundamental CPR
R1206 R1910 R3213 R5725 R10851
0.472 [12.00] 0.750 [19.05] 1.250 [31.75] 2.250 [57.15] 4.250 [107.95]
0.250 [6.35] 0.375 [9.52] 0.500 [12.70] 1.000 [25.40] 2.000 [50.80]
0.413 [10.50] 0.627 [15.92] 1.027 [26.08] 2.053 [52.15] 4.106 [104.30]
0.1253 [3.18] 0.1253 [3.183] 0.2503 [6.358] 0.5003 [12.708] 1.0003 [25.408]
0.040 [1.02] 0.040 [1.02] 0.050 [1.27] 0.060 [1.52] 0.080 [2.03]
1650 2500 4096 8192 16384
Custom scales available
How to Order Mercury 1500P Encoder Systems
To specify your Mercury encoder with the desired scale, consult the chart below to create the correct part number for your order. Call MicroE Systems' Rapid Customer Response team for more information at [781] 266-5700. Example (linear): M1540P-L55-C1 (rotary): M1540P-R3213-HB M15xxP - Scale Model - Scale Mounting Lxxx or Rxxxx For Linear Scales: T = Tape Mounting C1 = 3 scale clamps* C2 = 10 scale clamps** Hubs for Rotary Scales: NH = No hub HE = for R1206 HA = for R1910 HB = for R3213 HC = for R5725 HD = for R10851
M1504P = 4x interpolation M1508P = 8x M1520P = 20x M1540P = 40x
* 3 clamps come standard with linear scales up to 130mm ** 10 clamps come standard with linear scales 155mm or longer
All Specifications are subject to change. All data is accurate to the best of our knowledge. MicroE Systems is not responsible for errors.
DS-M1500P Rev 1
(c) 2008 MicroE Systems
MicroE Systems - World Headquarters: 125 Middlesex Turnpike * Bedford * MA 01730 www.microesys.com * info@microesys.com * T. [781]-266-5700 * F. [781]-266-5112
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