Datasheet

6
Encoding Characteristics
HEDS-9040 #T00
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 HEDM-614X Option TXX codewheel.
Parameter Symbol Min. Typ.
[1]
Max. Units
Cycle Error
∆C
3 7.5 °e
Pulse Width Error
∆P
7 50 °e
Logic State Width Error
∆S
5 50 °e
Phase Error
∆φ
2 15 °e
Position Error
∆Θ
2 20 min. of arc
Index Pulse Width P
O
40 90 140 °e
CH. I rise after CH. B or CH. A fall -40°C to +100°C t
1
10 450 1500 ns
CH. I fall after CH. A or CH. B rise -40°C to +100°C t
2
10 250 1500 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.
Encoding Characteristic
HEDS-9140 #B00
Encoding Characteristics over Recommended Operating Range and Recommended Mounting Tolerances unless oth-
erwise specied. Values are for the worst error over the full rotation of HEDM-504X Option BXX codewheel.
Parameter Symbol Min. Typ.
[1]
Max. Units
Cycle Error ∆C 6 12 °e
Pulse Width Error ∆P 10 45 °e
Logic State Width Error ∆S 10 45 °e
Phase Error ∆Φ 2 15 °e
Position Error ∆Θ 10 40 min. of arc
Index Pulse Width P
o
50 90 130 °e
CH. I Rise after CH B or CH A fall -40°C to +100° t
1
200 1000 1500 ns
CH. I fall after CH. A or CH.B rise -40°C to +100° t
2
0 300 1500 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.
Electrical Characteristics
Electrical Characteristics over Recommended Operating Range.
Parameter Symbol Min. Typ.
[1]
Max. Units Notes
Supply Current I
CC
30 57 85 mA
High Level Output Voltage V
OH
2.4 V I
OH
= -200 µA max.
Low Level Output Voltage V
OL
0.4 V I
OL
= 3.86 mA
Rise Time t
r
180
[2]
ns C
L
= 25 pF
R
L
= 2.7 kΩ pull-up
Fall Time t
f
49
[2]
ns
Notes:
1. Typical values specied at V
CC
= 5.0 V and 25°C.
2. t
r
and t
f
80 nsec for HEDS-9040 #T00.