Rockwell Automation 842E-CM User Manual [en, de, fr, it]

Installation Instructions

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

842E-CM Integrated Motion on EtherNet/IP™

EtherNet/IP™ Absolute Encoder (with 1588 Precision Clock Synchronization)

Description

The 842E-CM is an ultra-high resolution encoder with EtherNet/IP interface with time synchronization for motion control. These encoders provide 18-bit single-turn resolution and 30-bit multiturn 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 with IEEE 1588 Precision Clock Synchronization

• 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)

• Solid and blind hollow shaft options

Typical Applications

• Packing machines

• Robotics

• Printing machines

• Motion Control on EtherNet/IP

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Specifications

Certifications

Electrical

Bus Connection EtherNet/IP IEC 61784-1 CIP Sync IEEE 1588 (IEC 61588, precision clock synchronization) Transmission Rate 10/100 MBit/s Transmission Medium Cat-5e cable Code Type Binary Operating Voltage Range 10…30V Power Consumption 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

Shaft Loading

Permissible Shaft Movement

Bearing Lifetime Angular Acceleration

Operating Torque

Starting Torque

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 Vibrati on  20 g/10…2000 Hz Enclosure Rating Shaft IP65

Enclosure Rating Housing  IP67 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.

CE Marked for all applicable directives NRTL mark (cTUVus) for UL 508 CAN/CSA C22.2.14-10

200 mA

6.2 gcm2 (solid shaft) of the rotor 35 gcm2 (blind hollow shaft) of the rotor

9,000 RPM (solid shaft), max. 6,000 RPM (blind hollow shaft), max.

Radial: 80 N max. (solid shaft) Axial: 40 N max. (solid shaft)

Radial (static/dynamic): ± 0.3 / ± 0.05 mm [of drive element (blind hollow shaft)] Axial (static/dynamic): ± 0.5 / ± 0.1 mm [of drive element (blind hollow shaft)]

3 x 109 revolutions 5 x 105 rad/s², max.

0.3 Ncm (solid shaft) @ 20 °C

0.6 Ncm (blind hollow shaft) @ 20 °C

0.5 Ncm (solid shaft) at 20°C

0.8 Ncm (blind hollow shaft) at 20°C

Publication 10000481742 Ver 01 March 2013

Product Selection

Angle

Parallel Oset

ATTENTION

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-CM —SIP10 B A

abcd

Accessories

Description Note

Flexible couplings

Number of Turns

Code Description

S Single-turn (1 turn)

M Multi-turn (4096 turns)

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.

Mounting plates

Ethernet media

Cordsets & patchcords

Suggested Mating Cables

Description Cat. No.

M12 to RJ45 patchcord, 2 m

M12 D-code patchcord, male/ma le, 2 m

DC micro QD cordset, 4-pin, 2 m

Flexible Shaft Couplings

For information on these products, please refer to

www.ab.com/en/epub/catalogs

1585D-M4TBJM-2

1585D-M4TBDM-2

889D-F4AC-2

11 Hollow shaft 14 mm

12 Hollow shaft 15 mm

Connector

Code Description

B M12 connector

Resolution

Code Description

A 262,144 (18 bit) steps per revolution

2 — Publication 10000481742 Ver 02

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