Datasheet

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 kΩ 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 specied. Values are for the worst error over the full rotation of HEDS-5140 and HEDS-6140 codewheels.
Parameter Symbol Min. Typ.
[1]
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 kΩ pull-up
resistors used on all encoder module outputs.