4
Recommended Operating Conditions
Parameter
Symbol
Min.
Typ.
Max.
100
5.5
Units
°C
Notes
Temperature
TA
VCC
CL
f
-40
Supply Voltage
4.5
5.0
Volts
pF
Ripple < 100 mVp-p
2.7 kΩ pull-up
Load Capacitance
Count Frequency
100
100
kHz
Velocity (rpm) x N/60
Shaft Perpendicularity
Plus Axial Play
± 0.25
(± 0.010)
mm
(in.)
6.9 mm (0.27 in.) from
mounting surface
Shaft Eccentricity Plus
Radial Play
0.04
(0.0015)
mm (in.)
TIR
6.9 mm (0.27 in.) from
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
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
∆C
∆P
∆S
∆φ
∆Θ
PO
Min.
Typ.[1]
3
Max.
5.5
Units
Cycle Error
°e
Pulse Width Error
Logic State Width Error
Phase Error
7
30
°e
5
30
°e
2
15
°e
Position Error
10
40
min. of arc
Index Pulse Width
60
10
90
120
250
250
300
1000
°e
ns
ns
ns
ns
CH. I rise after
CH. B or CH. A fall
-25°C to +100°C
-40°C to +100°C
-25°C to +100°C
-40°C to +100°C
t1
100
100
150
150
t1
-300
70
CH. I fall after
t2
CH. A or CH. B rise
t2
70
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 [ HEWLETT-PACKARD ]
