4
Recommended Operating Conditions
Parameter
Temperature
Supply Voltage
Load Capacitance
Count Frequency
Shaft Perpendicularity
Plus Axial Play
Shaft Eccentricity Plus
Radial Play
Symbol
T
A
V
CC
C
L
f
Min.
-40
4.5
5.0
Typ.
Max.
100
5.5
100
100
±
0.25
(± 0.010)
0.04
(0.0015)
Units
°C
Volts
pF
kHz
mm
(in.)
mm (in.)
TIR
Ripple < 100 mV
p-p
2.7 kΩ pull-up
Velocity (rpm) x N/60
6.9 mm (0.27 in.) from
mounting surface
6.9 mm (0.27 in.) from
mounting surface
Notes
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
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
Cycle Error
Pulse Width Error
Logic State Width Error
Phase Error
Position Error
Index Pulse Width
CH. I rise after
CH. B or CH. A fall
CH. I fall after
CH. A or CH. B rise
-25°C to +100°C
-40°C to +100°C
-25°C to +100°C
-40°C to +100°C
Symbol
∆C
∆P
∆S
∆φ
∆Θ
P
O
t
1
t
1
t
2
t
2
60
10
-300
70
70
Min.
Typ.
[1]
3
7
5
2
10
90
100
100
150
150
Max.
5.5
30
30
15
40
120
250
250
300
1000
Units
°e
°e
°e
°e
min. of arc
°e
ns
ns
ns
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 kΩ
pull-up resistors used on all encoder module outputs.
HP [ AGILENT(HEWLETT-PACKARD) ]
