page
1
phone: 360.260.2468
l
sales: 800.736.0194
l
fax: 360.260.2469
email: sales@usdigital.com
l
website: www.usdigital.com
11100 ne 34th circle
l
vancouver, washington 98682 USA
E6M
Industrial Metal Optical Kit Encoder
US
Digital
C o r p o r a t i o n
TM
Mechanical Drawing:
For complete details see the EM1 or HEDS data sheet.
Electrical Characteristics:
A leads B for clockwise shaft rotation, and B leads A for
counterclockwise rotation viewed from the cover/label side of
the encoder. For complete details see our HEDS data sheet.
Phase Relationship:
Encoder Pin-out:
Pin
Description
1
Ground
2
Index
3
A channel
4
+5VDC power
5
B channel
Description:
The E6M offers twice the resolution of our E5M series, and fits shaft sizes up to 1". It is a robust rotary
encoder with a metal enclosure and a positive finger-latching connector. This shaft-mount optical
encoder is designed to easily install and dismount from an existing shaft to provide digital positional
feedback. The rugged aluminum construction and latching connector make the E6M ideal for
installations where the encoder may be exposed and vulnerable to impact.
The encoder module incorporates a lensed LED light source and a monolithic photo detector array
with signal shaping electronics to produce the two channel bounceless quadrature TTL outputs. Some
modules are also available with a 3rd channel (Index) that outputs one pulse per revolution.
The aluminum hub of the encoder wheel can be specified to install on shafts from .079" to 1" or 2mm
to 25.4mm in diameter. Standard diameters are stocked. A quick turn around is offered on most special
order diameters.
The base is constructed of anodized aluminum. It provides mounting holes for: 2 (2-56 or 4-40) screws
in a .750" bolt circle, 3 (0-80) screws in a .823" bolt circle, 2 (4-40) screws in a 1.280" bolt circle,
and 2 (4-40) screws in a 1.812" bolt circle. For shaft diameters less than or equal to .394", the base
comes with a .439" hole. For shaft sizes larger than .394", the hole diameter is 1.443" and only the
mounting holes in the 1.812" bolt circle remain.
The cover is constructed of machined aluminum for high impact resistance. Two 4-40 flat head screws
secure the cover to the base plate. The cover is anodized for corrosion resistance and is engraved
with the encoder modules pin-out.
The connector has 5 conductors, is polarized and latches into features on the encoders cover.
Depressing the latch tab allows the connector to be unplugged.
Features:
Quick, simple assembly and disassembly
Rugged screw-together aluminum housing
Positive finger-latching connector
Fits shaft diameters of .079" to 1" or 2mm to 25.4mm
Accepts .010" (.25mm) axial shaft play
Tracks from 0 to 100,000 cycles/sec
64 to 2048 cycles per revolution (CPR)
256 to 8192 pulses per revolution (PPR)
2 channel quadrature TTL squarewave outputs
Optional index (3rd channel)
-40 to +100C operating temperature
Rugged alternative to HP HEDS-6500
Single +5v supply
Pin-out is engraved on the cover
US Digital warrants its products against defects in
materials and workmanship for two years. See
complete warranty for details.
page
2
phone: 360.260.2468
l
sales: 800.736.0194
l
fax: 360.260.2469
email: sales@usdigital.com
l
website: www.usdigital.com
11100 ne 34th circle
l
vancouver, washington 98682 USA
E6M
Industrial Metal Optical Kit Encoder
US
Digital
C o r p o r a t i o n
TM
Centering Tool:
This reusable tool provides a simple method for accurately centering the E6M base
onto the shaft. It is recommended for the following situations:
When using mounting screws smaller than 4-40.
When the position of the mounting holes is in question.
When using the T-option transfer adhesive.
Instructions: When mounting encoder base, slide centering tool down shaft until
it slips into centering hole of encoder base. Tighten mounting screws, then remove
centering tool.
Accessories:
CTOOL -
Shaft Diameter:
079
118
125
156
157
187
197
237
250
312
315
375
394
Price
$5.00
CTOOL -
Shaft Diameter:
472
500
551
625
750
1000
Price
$10.00
Centering tool for shafts greater than .394":
Centering tool for shafts less than
or equal to .394":
M-option:
(For shaft sizes >.394")
(For shaft sizes <=.394")
These adapter plates are for mounting to a 3" diameter bolt circle. Use two 4-40 x 1/4"
screws (sold separately) to attach the E6M base to the plate. Plate comes attached
when ordered with encoder (see options below).
H-option:
The H-option adds a hole to the housing for the shaft to pass
through.
Shafts =<1/2", a .55 diameter hole is supplied.
Shafts >1/2", a 1.05" diameter hole is supplied.
Base Mounting Screws:
SCREW-176
Price: $0.25
(256 X 1/4")
Quantity: 2 or 3*
SCREW-290
Price: $0.25
(4-40 X 1/4")
Quantity: 2 or 3*
* Quantity required for encoder base mounting.
Hex Tools:
HEXD-3404
Price: $5.00
Hex driver, .050" flat-to-flat for 3-48 set screw.
HEXW-349
Price: $0.50
Hex wrench, .050" flat-to-flat for 3-48 set screw.
Spacer Tools:
SPACER-265
Price: $1.50
For shaft sizes < .472".
SPACER-260
Price: $3.00
For shaft sizes .472 or .500".
SPACER-555
Price: $3.00
For shaft sizes => .551".
page
3
phone: 360.260.2468
l
sales: 800.736.0194
l
fax: 360.260.2469
email: sales@usdigital.com
l
website: www.usdigital.com
11100 ne 34th circle
l
vancouver, washington 98682 USA
E6M
Industrial Metal Optical Kit Encoder
US
Digital
C o r p o r a t i o n
TM
Secure base to mounting surface using two
or three screws (sold separately). If a cen-
tering tool is used, slip it over the shaft and
into center hole of the base. Tighten mount-
ing screws, remove centering tool.
1. Base Mounting:
For shafts less than or equal to .394"
Place spacer tool around shaft, flat on
base.
2. Spacer Installation
Secure base to mounting surface using two
screws (sold separately). If a centering tool
is used, slip it over shaft and into center hole
of base. Tighten mounting screws, remove
centering tool.
1. Base Mounting:
Slip hub/disk assembly over shaft as
shown and press down until hub and
spacer tool bottoms out against base.
Make sure spacer tool clears base mount-
ing screws. Tighten set screw while
pressing down on hub/disk assembly (hex
wrench supplied). Remove spacer tool.
3. Hub/Disk Assembly
Installation
Position module with connector pins to-
wards the top. Tilt module so that module
loops clear base pedestal and disk fits into
slot of module. Slide module in direction of
arrow until module leads are centered over
pedestal. Press module over aligning pins on
base. Secure with two 4-40 1/2" pan head
screws (supplied).
4. Encoder Module
Installation
Place cover over assembly and secure with
two 4-40 5/8" flat head screws (supplied).
5. Cover Installation
Place cover over assembly and secure with
two 4-40 5/8" flat head screws (supplied).
5. Cover Installation
Position module with connector pins to-
wards top. Tilt module so that module loops
clear base pedestal and disk fits into slot of
module. Slide module in direction of arrow
until module leads are centered over pedes-
tal. Press module over aligning pins on base.
Secure with two 4-40 1/2" pan head
screws (supplied).
4. Encoder Module
Installation
Slip hub/disk assembly over shaft as shown
and press down until hub and spacer tool
bottoms out against base. Make sure spacer
tool clears base mounting screws. Tighten
both set screws while pressing down on hub/
disk assembly, hex wrench provided. Re-
move spacer tool.
3. Hub/Disk Assembly
Installation
Push spacer tool onto bottom section of hub/
disk assembly. Make sure spacer tool snaps
only on lower part of hub.
2. Spacer Installation
For shafts larger than .394"
page
4
phone: 360.260.2468
l
sales: 800.736.0194
l
fax: 360.260.2469
email: sales@usdigital.com
l
website: www.usdigital.com
11100 ne 34th circle
l
vancouver, washington 98682 USA
E6M
Industrial Metal Optical Kit Encoder
US
Digital
C o r p o r a t i o n
TM
Ordering Information:
Technical Data, Rev. 02.18.03, February 2003
All information subject to change without notice.
Index/HiRes*:
$82.88 / 1
$77.28 / 10
$72.80 / 50
$69.44 / 100
$66.08 / 500
$60.48 / 1K
Cost Modifiers:
Add $7 for M-option adapter plate.
Add $12 for shaft diameters = 12mm, 1/2", 14mm or 5/8".
Add $16 for shaft diameters = 3/4" or 1".
Add $3 for PKG1 option packaging.
Add $4 for PKG2 option packaging.
Add $10 for PKG3 option packaging for 10mm or less.
Add $13 for PKG3 option packaging for 12mm or more.
Price:
$74.00 / 1
$69.00 / 10
$65.00 / 50
$62.00 / 100
$59.00 / 500
$54.00 / 1K
E6M -
CPR:
64***
100
200
400**
500
512**
1000
1024
2000
2048
Packaging Options:
Blank (default) = Encoder components, one spacer
tool and one hex wrench per 100 encoders
packaged in bulk.
PKG1 = Each encoder packaged individually. One
spacer tool and one hex wrench per 100
encoders packaged in bulk.
PKG2 = One spacer tool and one hex wrench
individually packaged together with each encoder.
PKG3 = One spacer tool, one hex wrench, and one
centering tool individually packaged together with
each encoder.
If you would like individual mounting screws,
further instructions, or other custom kits please call.
Options:
(specify in order shown)
I = Index (3rd channel).
H = Adds hole in housing to allow shaft to
pass through. Hole diameter is shaft
diameter plus no more than .172".
M = Adds 4-hole mounting adapter plate.
Notes:
* Index / resolutions =>2000 CPR.
** Index option not available.
*** 64 CPR only available with index.
Shaft Diameter:
Code
Size
079
2mm
118
3mm
125
1/8"
156
5/32"
157
4mm
187
3/16"
197
5mm
237
6mm
250
1/4"
312
5/16"
315
8mm
375
3/8"
394
10mm
472
12mm
500
1/2"
551
14mm
625
5/8"
750
3/4"
1000
1"
Compatible Cables & Connectors:
Finger-latching:
10-pin
Description
CON-FC5-22*
Connector
CA-3133-1FT
Connector on one end with 4 12" wires
CA-3132-1FT
Connector on one end with 5 12" wires
CA-3131-6FT
Connector on one end of a 6' shielded round cable
CA-3620-6FT
Connectors on both ends of a 6' shielded round cable
* 22 AWG is standard. 24, 26 and 28 AWG are also readily available.
Attention:
Specify cable length when ordering.
Custom cable lengths are available. See the Cables & Connectors
data sheet for more information.
Disk
Standard
Index
64
1-32*
1-32*
100
S
S
200
C
C
400
E
-
500
A
F
512
A
-
1000
B
B
1024
J
J
2000
T
T
2048
U
T
Disk Optics:
Be sure to keep different diameters, resolutions and options separated. The
resolution of the optoelectronic modules and the code wheels must match. Index
and non-index parts cannot be mixed since the optical patterns are different.
An additional identifier is stamped on each optoelectronic module. The 2-channel
(non-index) version can be identified by a number 9000 or 9100. A 9040 or 9140
identifies the 3-channel (index) version. One letter stamped on each module
specifies the resolution as shown in the adjacent table.
* US Digital's EM1 optical encoder module. 1 stands for 1" disk, while the second
number set is the resolution. (64 CPR uses EM1-1-32 module).
Mechanical Specifications:
Parameter
Dimension
Units
Moment of Inertia
8.0 x 10
-6
oz-in-s
2
Hub Set Screw Size
3-48
in.
Hex Wrench Size
.050
in.
Encoder Base Plate Thickness
.135
in.
3 Mounting Screw Size
0-80
in.
3 Screw Bolt Circle Diameter
.823 .005**
in.
2 Mounting Screw Size
2-56 or 4-40
in.
2 Screw Bolt Circle Diameter
.750 .005**
in.
2 Screw Bolt Circle Diameter
1.280 .005
in.
2 Screw Bolt Circle Diameter
1.812 .005
in.
Required Shaft Length
.450 to .570*
in.
* Add .125" when using M-option.
** Only for shaft diameters less than or equal to .394".
Absolute Maximum Ratings:
Parameter
Max.
Units
Vibration (5 to 2kHz)
20
g
Shaft Axial Play
0.010
in.
Shaft Eccentricity plus radial play
0.004
in.
Acceleration
250,000
rad/sec
2
Torque Specifications:
Parameter
Torque
Hub Set Screw to Shaft
2-3 in.-lbs.
Cover (4-40 screws through cover into base)
2-3 in.-lbs.
Base to Mounting Surface
4-6 in.-lbs.
Base to Mounting Adapter Plate
4-6 in.-lbs.
Adapter Plate to Mounting Surface (4-40 screws) 4-6 in.-lbs.
Adapter Plate to Mounting Surface (6-32 screws) 6-8 in.-lbs.
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