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Rockwell Automation 844C Incremental Encoder User Manual

Rockwell Automation Equipment

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Installation Instructions

Bulletin 844C Hollow ThroughĆShaft Incremental Encoders

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

Selection

844C — Z3

05D

02500

a

b

c

a

Shaft Options

Code

Description

06

6mm

08

8mm

10

10mm

12

12mm

Z3

3/8I

Z4

1/2I

b

Power Supply & Output

Ê

Code

Description

05D

4 to 6V DC in,

DLD RS422 Output

10D

10 to 30V DC in,

5V DC DLD RS422 Output

10P

10 to 30V DC in,

10-30V DC PĆP Output

Ê

DLD = Differential Line Driver
P–P = Push-Pull Single Ended Driver

c

Resolution

Code

Description

00100

100

00250

250

00360

360

00500

500

01000

1000

01024

1024

01250

1250

02000

2000

02048

2048

02500

2500

03600

3600

04096

4096

05000

5000

07200

7200 Л

08192

8192 Л

10000

10000 Л

Л

Available with 4–6V power supply and
output only.

Specifications

Electrical

Code Format 2 channels with zero index

Quadrature 90_

±

22_ channel A leads B CW

Symmetry 40% to 60%

Operating Voltage 4ć6V DC, 10ć30V DC w/RS422 Output

10ć30V DC w/PushĆPull Output

Power Requirements 100mA @ 5V DC (no load)

120mA @24V DC (no load)

Max Output Frequency 300kHz (RS422)

200kHz (PushĆPull)

Resolution Up to 10,000 pulses per revolution

Integral Cable 1.5m (5ft)

Output Drivers RS422 Line driverĊ3487

10-30V DC Line driverĊ7272

Mechanical

Angular Acceleration 50,000 radians/sec

2

maximum

Moment of Inertia 45gcm

2

(0.25ozĆin

2

) maximum

Maximum Operating Speed 6000rpm at max shaft loading

Maximum Torque 0.2Ncm (0.28oz in) Operating

0.4Ncm (0.57oz in) Starting

Permissible Shaft Movement Radial 0.05mm (0.002in)

Axial

±

0.2mm

〈±

0.008in)

Maximum Shaft Loading Axial 0.45kg (1lb)

Radial 1.36kg (3lb)

Environmental

Housing Aluminum

Temperature -20_C to 70_C working

-20_C to 85_C operating

-20_C to 85_C storage

Humidity 90% noncondensing

Protection IP65 (IEC529)

Shock 30Gs/11msec

Vibration 20Gs/10-150Hz

Approximate Weight 0.3kg (11oz)