Rockwell Automation 847H-F User Manual

Installation Instructions

847

F b

01204

B24 A B

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847H-F 2.5-inch Diameter Solid Shaft Incremental Encoders

with Bell Housing and Coupler

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

Selection Guide

Code Connector/Cable Exit

AAxial exit

Code Encoder Diameter/Type

H 2.5 in. diameter solid shaft

Code Mounting Configuration

F Bell housing and coupler

Code Shaft Size

B 1/4 in. diameter bore helical coupler (standard)

E 3/8 in. diameter bore helical coupler (standard)

F 1/4 in. diameter bore bellows coupler (high performance)

G 3/8 in. diameter bore bellows coupler (high performance)

Code Power Supply

14.5…5.5V DC

28…30V DC

Code Output Configuration

Signal Phasing A-leads-B clockwise rotation viewed from shaft end, Z gated A

4 4.5…5.5V line driver outputs (TTL)

5 4.5…5.5V open collector outputs 

6 8…30V line driver outputs (HTL) 

7 8…30V open collector outputs 

Signal Phasing B-leads-A clockwise rotation viewed from shaft end, Z gated BN

A 4.5…5.5V line driver outputs (TTL)

B 4.5…5.5V open collector outputs 

C 8…30V line driver outputs (HTL) 

D 8…30V open collector outputs 

Options 5 and B cannot be ordered with option 2 from table d.

Options 6, 7, C, and D cannot be ordered with option 1 from table d.





R Radial exit

Code Connector/Cable Type

A M12 connector, 8-pin with mating connector

B M12 connector, 8-pin

C MS connector, 6-pin with mating connector

D MS connector, 6-pin

E MS connector, 7-pin with mating connector

F MS connector, 7-pin

G MS connector, 10-pin with mating connector

H MS connector, 10-pin

P 1.5 m (4.9 ft) cable

Q 5 m (16.4 ft) cable

R 10 m (32.8 ft) cable

Code Resolution

1…65536 00001...65536 pulses/revolution

Accessories

Description Part Number

Pre-wired cables 845-CA-*-*

845-6P

Mating connectors

Differential encoder buffer board 845-BB*

M12 cable 889D-F8FB-*

* See Sensor Catalog for selection

845-7P 845-7P-RT 845-10P 845-10P-RT

Specifications

Electrical

Code format Incremental, 2 channels with zero

Signal options, clockwise rotation viewed from shaft end

Signal phase relation 90° ± 22°, channels

Symmetry 50% ± 10%

Zero index channel Gated 1/2 cycle

Supply current 50 mA

Frequency response 4.5…5.5V line driver output: 820 kHz

Resolution 1…65536 pulses/revolution

Load current 30 mA for all output types

Output drivers 4.5…5.5V line driver - IC HD2

Electrical protection Reverse polarity and short circuit for

index

A-leads-B, 180° marker gated with A or B-leads-A, 180° marker gated with BN

8…30V line driver output: 820 kHz Open collector: 150 kHz

8…30V line driver - IC HD2 Open collector - 7406

all output types

Environmental

Enclosure rating per IEC 60529

Tem pe ra tu re

Relative humidity 90% non-condensing

Shock 100 G/11 ms duration

Vibration 30 G/10…2,000 Hz

EMC EN 61000-6-2 and EN 61000-6-3

Housing material EN AC-47100 die-cast aluminium

Housing finish Powder coat paint, color RAL 9005,

Flange material 6061-T6 aluminium

Shaft material SAE 303 stainless steel

Certifications RoHS compliant

Shaft: IP 65 Housing, connector version with mating connector installed: IP67 Housing, cable version:: IP67

-30…80° C (-22...176° F) operating

-40…100° C (-40...212° F) storage

(M12 connector)

Pantone black C (jet black)

CE marked for all applicable directives UL listing valid only for encoders with cable and M12 connections.

Cable outer diameter 0.25 in (6.2 mm)

Cable type 300V, 105º C, 26 AWG, 9-conductor

Cable bend radius Minimum 5x outer diameter

Mechanical [mm (in.)]

Maximum operating speed 9,000 RPM

Angular acceleration 500,000 radians/s²

Moment of inertia 41 g•cm²

Startup torque at 20° C (68° F) 0.8 N•cm

Operating torque at 20° C (68° F) 0.6 N•cm

Approximate weight [kg (lb)] 0.40 (0.86 lb) with M12 connector

MTTFd (EN ISO 13849-1) 330 years

Angular shaft misalignment [mm (in.)]

Parallel shaft misalignment [mm (in.)]

Coupling axial compliance [mm (in.)]

with overall braided shield, UL AWM type 20327 for use in fixed (nonflexing) installations; RoHs compliant

5° standard coupler, 10° high performance coupler

0.25 (0.010) standard coupler,

0.51 (0.020) high performance coupler

± 0.76 (0.030) standard coupler, ± 1.52 (0.060) high performance coupler

Coupler bore size 9.52 (3/8) or 6.4 (1/4) diameter

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