Rockwell Automation 842E User Manual
Installation Instructions
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
842E EtherNet/IP™ Encoders
High Resolution with DLR
Description
The 842E is an ultra-high resolution encoder with EtherNet/IP inter face. These encoders
provide 18-bit single-turn resolution and 30-bit multi-turn resolution. The EtherNet/IP
encoder is targeted for high performance and reliability in harsh industrial
environments. Encoder includes an embedded EtherNet/IP switch to connect additional
E/IP capable product in series and/or support a Device Level Ring (DLR) for ethernet
media redundancy.
Features
• EtherNet/IP
• Embedded switch
• Hardware/software IP address setting
• Resolution up to 30 bits
• Protection class up to IP67
• Simple and fast set up
• Device Level Ring (DLR)
•Revolution divisor
• Solid and blind hollow shaft options
Configurable Parameters Typical Applications
• Counting direction • Packing machines
• Counts per resolution • Robotics
• Counts of revolution • Printing machines
• Preset value • Rotary table positioning
• Velocity unit
• IP address
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Specifications
Certifications CE Marked for all applicable directives
Electrical
Bus Connection EtherNet/IP IEC 61784-1
Transmission Rate 10/100 MBit/s
Transmission Medium Cat-5e cable
Code Type Binary
Operating Voltage Range 10…30V
Power Con sumption 3.0 W
Resolution 262,144 (18 bit)
No. of Revolutions, max. 4,096 (12 bit)
Error Limits ±0.03°
Repeatability ±0.002°
Operating Current, max., no load;
10…30V supply
Mechanical
Moment of Inertia
Operating Speed 9,000 RPM (solid shaft ), max.
Shaft Loading Radial: 80 N max. (solid shaf t)
Permissible Shaft Movement Radial (static/dynamic): ± 0.3 / ± 0.05 mm [of drive element (blind
Bearing Lifetime
Angular Acceleration
Operating Torque 0.3 Ncm (solid shaft) @ 20 °C
Starting Torque 0.5 Ncm (solid shaft) at 20°C
Environmental
Housing Material Aluminum
Shaft Material Stainless steel
Operating Temperature [C (F)] -30… +85° (-22… +185°)
Storage Temperature [C (F)] -40… +100° (-40… +212°)
Relative Humidity 90%
Shock 100 g/6 ms
Vibrat ion 20 g/10…2000 Hz
Enclosure Type Rating IP67 (IEC 60529)
Weight 0.2 kg (0.44 lb)
Standards EN 61000-6-2 and EN 61000-6-3 EMC
Without packaging.
To condensation not permitted.
To DIN EN 60068-2-27.
To DIN EN 60068-2-6.
With mating connector inserted.
200 mA
2
(solid shaft) of the rotor
6.2 gcm
2
(blind hollow shaft) of the rotor
35 gcm
6,000 RPM (blind hollow shaft), max.
Axial: 40 N max. (solid sh aft)
hollow shaft)]
Axial (static/dynamic): ± 0.5 / ± 0.1 mm [of d rive element (blind
hollow shaft)]
9
3 x 10
revolutions
5
5 x 10
rad/s², max.
0.6 Ncm (blind hollow shaft) @ 20 °C
0.8 Ncm (blind hollow shaft) at 20°C
Publication #10000169360 Ver 02 — July 2012
Product Selection
Rigidly coupling the encoder shaft to
the machine shaft will cause a failure in
either the bearings of the encoder or
the bearings of the machine shaft.
842E —SIP10 B A
abcd
Accessories
Description Note
Flexible couplings
a
Number of Turns
Code Description
S Single-turn (1 turn)
M Multi-turn (4096 turns)
b
Mechanical Interface
Code Description
1Solid shaft 3/8 in.
2 Solid shaft 3/8 in. with flat
3Solid shaft 10 mm
4 Solid shaft 10 mm with flat
5 Hollow shaft 1/4 in.
6 Hollow shaft 8 mm
7 Hollow shaft 3/8 in.
8 Hollow shaft 10 mm
9 Hollow shaft 12 mm
10 Hollow shaft 1/2 in.
11 Hollow shaft 14 mm
12 Hollow shaft 15 mm
Mounting plates
Ethernet me dia
Cordset s & patchcor ds
Suggested Mating Cables
Description Cat. No.
4-wire cable spool, robotic TPE, 100 m
M12 D-code patchcord, male/male, 1 m
DC micro QD cordset, 4-pin, 2 m
DC micro QD patchcord, 4-pin, 2 m
Flexible Shaft Couplings
For information on these products, please refer to
www.ab.com/en/epub/catalogs
1585-C4TB-S100
1585D-M4TBJM-2
889D-F4AC-2
889D-F4ACDM-2
Angle
Parallel
Oset
c
Connector
Code Description
B M12 connector
d
Resolution
Code Description
A 262,144 (18 bit) steps per revolution
ATTENTION
Publication #10000169360 Ver 02 — July 2012
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