Rockwell-automation 845P Incremental Encoder User Manual download pdf

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Installation Instructions

Size 15 Incremental Encoder, Bulletin 845P

IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.

Specifications

Electrical

Code Format Incremental, 2 channels with zero index

Quadrature 90° ±36°

Channel A leads B CCW

Symmetry 50% ±10%

Zero Index Channel 1/2 cycle, gated to channel B

Power

Requirements

5V DC ±5% @ 90mA maximum

Frequency

Response

100 kHz

Operating Speed

(Data)

(100 kHz x 60)/pulses per revolution = RPM or

5000 RPM, whichever is lower

Resolution 500 or 1000 PPR on code disk

Output Drive

Capability

Differential line driver = ±20 mA

Mechanical

Starting Torque

0.9inĆoz typical [0.006 NDm]

Running Torque

0.15inĆoz typical [0.001 NDm]

Slew Speed 5000 RPM

Shaft Loading Axial 2.5 lbs [11 N]

Radial 5.0 lbs [22 N]

Shaft Size 1/4in [6.4mm] diameter

Environmental

Housing NEMA Type 1

Temperature +32°F to +140°F (0°C to +60°C) Ċ operating

-13°F to +194°F (-25°C to +90°C) Ċ storage

Humidity 85%, noncondensing

Shock 50 G's (11ms duration)

Vibration 20 G's (5 to 2000 Hz)

Approximate

Shipping Weight

12oz (0.34 kg)

Accessories

Description Part Number

High Performance Flexible Coupling 845-FC-*-*

Servo Clamps 845-SC

Differential Encoder Buffer Board 845-BB

*See the Rockwell Automation/AllenĆBradley Sensor catalog for selection.

ATTENTION: The shielded cables, output devices,

and power supplies must be properly grounded. All

National Electric Code and applicable local codes

and ordinances must be observed when wiring the

system.

Selection

845P — S H C 1 4 — CN 3

DIFFER

Resolution

Code Description (PPR)

500CM

1000CN

Differential Line Drive Output

90 +/- 36°

Channel A

Channel B

Channel Z

1 Cycle

(CCW Rotation Shown)

Cable

Differential Line Driver Output

Wire Color

Function

White DC+ Input (5V DC)

Black DC Return

Red Channel A

Violet Channel A

Green Channel B

Blue Channel B

Yellow Channel Z

Orange Channel Z

Shield Floating

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Summary of Contents

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ObsoleteInstallation Instructions Size 15 Incremental Encoder, Bulletin 845PIMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.SpecificationsElectrical

Page 2

ObsoleteFlexible Shaft CouplingsAngleParallelOffĆSetATTENTION: Rigidly coupling the encoder shaftto the machine shaft will cause a failure in eitherth