5

Recommended Operating Conditions

Parameter

Symbol

Min.

Typ.

Max.

Units

Notes

Temperature

T

A

-40

100

°C

Supply Voltage

V

CC

4.5

5.0

5.5

Volts

Ripple < 100 mV

p-p

Load Capacitance

C

L

100

pF

2.7 k

Ω pull-up

Count Frequency

f

100

kHz

Velocity (rpm) x N/60

Shaft Perpendicularity

±0.25

mm

6.9 mm (0.27 in.) from

Plus Axial Play

(±0.010)

(in.)

mounting surface

Shaft Eccentricity Plus

0.04

mm (in.)

6.9 mm (0.27 in.) from

Radial Play

(0.0015)

TIR

mounting surface

Note: The module performance is guaranteed to 100 kHz but can operate at higher frequencies. For the HEDS-9040 #T00 for operation below 0°C

and greater than 50 kHz the maximum Pulse Width and Logic State Width errors are 60°e.

Encoding Characteristics

HEDS-9040 (except #T00), HEDS-9140 (except #B00)

Encoding Characteristics over Recommended Operating Range and Recommended Mounting Tolerances unless

otherwise specified. Values are for the worst error over the full rotation of HEDS-5140 and HEDS-6140 codewheels.

Parameter

Symbol

Min.

Max.

Units

Cycle Error

∆C

3

5.5

°e

Pulse Width Error

∆P

7

30

°e

Logic State Width Error

∆S

5

30

°e

Phase Error

∆φ

2

15

°e

Position Error

∆Θ

10

40

min. of arc

Index Pulse Width

P

O

60

90

120

°e

CH. I rise after

-25°C to +100°C

t

1

10

100

250

ns

CH. B or CH. A fall

-40°C to +100°C

t

1

-300

100

250

ns

CH. I fall after

-25°C to +100°C

t

2

70

150

300

ns

CH. A or CH. B rise

-40°C to +100°C

t

2

70

150

1000

ns

Note:

1. Module mounted on tolerance circle of ±0.13 mm (±0.005 in.) radius referenced from module Side A aligning recess centers. 2.7 k

Ω pull-up

resistors used on all encoder module outputs.