Data Sheet
NEW
Harsh- Duty Optical Encoder - DrawWorks
DESCRIPTION
The DWD38 Harsh-Duty Optical Encoder is an Indus-
trial Hollow Shaft design that operates reliably from
–40 to +100°C. Its Hard Anodized finish exceeds
IP66/IP67 and NEMA 6 enclosure requirements.
The DWD38 is a preferred choice as a DrawWorks
encoder by the Oil Field industry and is also commonly
used in high shock and vibration environments such as
Food Processing, Material Handling and Packaging
Equipment applications.
Extremely robust, the DWD38 encoder is also available
in Stainless Steel to meet NEMA 4x and 6P require-
ments. A unique labyrinth double-sealed housing
allows operation when regulatory washdown and high
pressure steam or caustic chemicals are required.
It is also available in an Intrinsically Safe version,
certified to ATEX EEx ia IIB T4, when used with the
appropriate IS Barrier.
Series DWD38
• Single or Dual output - NAMUR available
• Well suited for DrawWorks/oil field application
• ATEX Certfication available for Intrinsically Safe
application
• High Resolution Unbreakable Disk
• Industrial Duty Connector
• NEMA 4X / IP67 Rated
• Nickel or Stainless Steel Housing available
• Two Year Warranty
APPLICATIONS:
The DWD38 Harsh-Duty Optical Encoder is ideal for
DrawWorks application and corrosive environments
that demand heavy washdown protection. This
compact, special-duty encoder is designed to excede
IP66/IP67 and NEMA 6 enclosure requirements with a
PPR range through 5000. ATEX certification is also
available for intrinsically safe applications.
• DrawWorks and other Oilfield
• Converting Machinery
• Material Handling
• Packaging Equipment
• Pickling Equipment
• Processing Equipment
INDUSTRIES
Chemical, Food & Beverage, Oil & Gas, Paper, Steel
and any other where a precise encoder is needed to
operate in very harsh environments.
FEATURES/BENEFITS
Mechanical and Environmental
• Unbreakable code disk
• Flexible mounting
• Heavy duty shaft seals
• Sealed connector
Electrical
• Cast housing maximizes noise immunity and
durability
• NAMUR outputs and ATEX certification available
Encoders
Harsh-Duty Optical Encoder - DrawWorks
Series DWD38
Encoders
Harsh-Duty Optical Encoder... Ideal for DrawWorks Application
SPECIFICATIONS*
STANDARD OPERATING CHARACTERISTICS
Code: Incremental
Resolution: 1 to 5000 PPR (pulses/revolution)
Format: Two channel quadrature (AB) with
optional Index (Z), and complementary outputs
Phase Sense: A leads B for CCW shaft rotation
viewing the shaft clamp end of the encoder
Quadrature Phasing: For resolutions to
1200 PPR: 90° ± 15° electrical; For resolutions
over 1250 PPR: 90° ± 30° electrical
Symmetry:
For resolutions to 1024PPR: 180° ±18° electrical
For resolutions over 1024PPR: 180° ±25° electrical
Waveforms: Squarewave with rise and fall times
less than 1 microsecond into a load capacitance
of 1000 pf
ELECTRICAL
Input Power: 5-26VDC; 50 mA max., not
including output loads. ATEX: 5VDC, 5-26VDC
Outputs: 2N2222, ET7272, ET7273
Frequency Response: 125 kHz (data & index)
Termination: 6, 7, or 10 pin MS Connector; 18”
cable exit w/seal
Mating Connector:
6 pin, style MS3106A-14S-6S (MCN-N4);
7 pin, style MS3106A-16S-1S (MCN-N5);
10 pin, style MS3106A-18-1S (MCN-N6)
DATA AND INDEX
Not all complements shown.
A shown for reference
o
(1 8 0 E LEC)
Data A
Data A
Data B
Index
A Leads B CCW
o
(90 E LEC)
MECHANICAL
Shaft Material: 300 series stainless steel
Bore loading: Up to 20 lbs axial and radial
Bore runout: 0.0005 TIR at midpoint
Starting/Running torque: 4.5/4.0 in-oz. maximum
(at 25°C)
Bearings: 61806-ZZ
Bearing life: 5 x 108 revs at rated shaft Loading,
5 x 1011 revs at 10% of rated shaft
loading.(manufacturers’ specs)
Housing and cover: Hard Anodized Aluminum.
Also available in Electroless Nickel finish and
Stainless Steel.
Disc material: Metal or mylar
Weight: 35 ounces, typical
ENVIRONMENTAL
Operating Temperature: -40 to 100°C
Operating Temperature ATEX: -40 to 80°C
Storage temperature: -40 to 100°C
Shock: 50G’s for 11msec duration
Vibration: 5 to 2000Hz @ 20 G’s
Humidity: 100%
Enclosure Rating: NEMA 4X, NEMA 6, IP66,
IP67. NEMA 6P upon request
Note: “MS” type mating connectors and
prebuilt cables are rated NEMA 12.
* Specifications are for base models with standard
features only unless otherwise noted. Specifications subject to change without notice in
accordance with our DBS policy of continuous
improvement. All product and brand names are
trademarks of their respective owners. All rights
reserved.
ELECTRICAL CONNECTIONS
6, 7 & 10 Pin MS Connectors and Cables
Connector & mate/accessory cable assembly pin numbers and wire color information is provided here for
reference. Models with direct cable exit carry the color coding as shown in the right hand column.
Encoder Cable # 108594- Cable # 108595- Cable # 108596- Cable # 1400635- Cable Exit
Function 6 Pin Single Ended 7 Pin Single Ended 7 Pin Dif Line Drv w/o Idx 10 Pin Dif Line Drv w/ Idx with Seal
Sig. A E BRN A BRN A BRN A BRN GREEN
Sig. B D ORG B ORG B ORG B ORG BLUE
Sig. Z C YEL C YEL — — C YEL ORANGE
Power +V B RED D RED D RED D RED RED
Com A BLK F BLK F BLK F BLK BLACK
Case — — G GRN G GRN G GRN WHITE
N/C F—E— —— E— —
Sig.
A — — — — C BRN/WHT H BRN/WHT VIOLET
Sig.
B — — — — E ORG/WHT I ORG/WHT BROWN
Z ———— —— J YEL/WHT YELLOW
Sig.
Note: “MS” type mating connectors and prebuilt cables are rated NEMA 12.
Pin Wire Color Pin Wire Color Pin Wire Color Pin Wire Color Wire Color
Harsh-Duty Optical Encoder - DrawWorks
3.75
Ø
2.25
Ø
4.58
2.78
3X
10-32 UNF x .38 DEEP
ON 3.000 BOLT CIRCL
Ø
Series DWD38
Harsh-Duty Optical Encoder... Ideal for DrawWorks Application
DIMENSIONS
inches [mm]
3X
10-32 UNF x .38 DEEP
ON A 3.00 0 BOLT CIRCLE
Ø
2.70
4.58
5/8-18 UNF
MALE THREAD
1"-14 UNS FEMALE
INTERNAL THREAD
O-RING SEALED
1"-14 UNS MALE THREAD
REMOVEABLE HOLLOW
SHAFT EXTENSION
INCLUDED WITH ENCODER
1"-14 UNS FEMALE
INTERNAL THREAD
O-RING S EALED
Encoders
1.00
1.11
Ø
2.25Ø
3.75
Ø
With Convertable Shaft
ORDERING INFORMATION
Code 1: Model
Code 2: PPR Code 3: Shaft
DWD38
Size 38
Harsh-Duty Optical
Encoder - DrawWorks
1 Unidirectional
2 Bidirectional
3 Bidirectional with
Index
0015
0032
0050
0060
0100
0200
0240
0250
0500
0512
0600
1000
1024
1200
2000
2048
4000
4096
5000
1.25
0 1”-14
UNS
x 5/8” - 18
UNF
Threaded
Shaft
1 1”-14
UNS
Threaded
Shaft
2
1”-14 UNS
x 5/8” - 18
UNF Field
Replaceable
Threaded
Shaft
.12
.08
.75
1.70
1"-14 UNS MALE
THREADS
.69
1.12
.12
1.70
.08
With Non-Convertable Shaft Redundant Version
Code 4: Electrical
Code 5: Termination
Code 6: Options
Ordering Information
0 5-26V in, 5-26V
Open Collector out
(7273)
2 5-26V in, 5-26V
Push-Pull out
F 5-26V in, 5-26V
Open Collector out
(2222)
G 5-26V in, 5-26V
Open Collector out
with 2.2 kΩ Pullups
(2222)
available when: Code 2
is 0015
N NAMUR 15 mA
Maximum
available when: Code 1
is 1,2 and Code 5 is 3
through Z, or Code 1
is 3 and Code 5 is 5
through Z:
3 5-26V in, 5-26V
Differential Line
Driver out (7272)
4 5-26V in, 5V
Differential Line
Driver out (7272)
1 6 Pin Connector
3 7 Pin Connector
5 10 Pin Connector
D 18" Sealed Cable
E 3’ Sealed Cable
F 6’ Sealed Cable
G 10’ Sealed Cable
H 15’ Sealed Cable
Z 30m Sealed Cable
0 No Options
1 Nickel Finish Housing
2 Stainless Steel Housing
3 Redundant Outputs (Dual Connector
Housing). See † NOTE
4 Nickel Finish Housing with Redundant
Outputs. See † NOTE
5 Stainless Steel Housing with
Redundant Outputs. See † NOTE
A Same as "0" w/ ATEX Type 1
B Same as "1" w/ ATEX Type 1
C Same as "2" w/ ATEX Type 1
D
Same as "3" w/ ATEX Type 1.
E
Same as "4" w/ ATEX Type 1.
F
Same as "5" w/ ATEX Type 1.
See †NOTE
See †NOTE
See †NOTE
Available when Code 4 is 0-3, F or G
G Same as "0" w/ ATEX Type 2
H Same as "1" w/ ATEX Type 2
I Same as "2" w/ ATEX Type 2
J
Same as "3" w/ ATEX Type 2.
K
Same as "4" w/ ATEX Type 2.
L
Same as "5" w/ ATEX Type 2.
See †NOTE
See †NOTE
See †NOTE
Available when Code 4 is 4
M Same as "0" w/ ATEX Type 3
N Same as "1" w/ ATEX Type 3
O Same as "2" w/ ATEX Type 3
P
Same as "3" w/ ATEX Type 3.
Q
Same as "4" w/ ATEX Type 3.
R
Same as "5" w/ ATEX Type 3.
See †NOTE
See †NOTE
See †NOTE
Factory Automation Worldwide Brands: Dynapar
*Note: Available ATEX Certified Options
ATEX Type 1: ATEX Certified; 5V in, 5V out only
ATEX Type 2: ATEX Certified; 7-26V in, 7-26V out
ATEX Type 3: ATEX Certified; 7-26V in, 5V out
† NOTE: Simultaneous use of
redundant outputs may void
ATEX certification. Consult
factory for details.
NOTE: When selecting ATEX models, ATEX voltages
replace those shown in Code 4.
Customer Service +1 800.873.8731 • Technical Support +1 800.234.8731
www.dynapar.com
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