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參數(shù)資料
| 型號(hào)： | HEDS-8905 |
| 英文描述： | Alignment Tool For 3-channel Zipper1 (HEDS-9140 Series) Module With 28mm Codewheel |
| 中文描述： | 對(duì)齊工具3通道Zipper1具有28mm（HEDS - 9140系列）模塊編碼輪 |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大小： | 259K |
| 代理商： | HEDS-8905 |
2-96
Electrical Interface
To insure reliable encoding
performance, the HEDS-5540 and
5640 three channel encoders
require 2.7 k
(
±
10%) pull-up
resistors on output pins 2, 3, and
5 (Channels I, A, and B) as shown
in Figure 1. These pull-up
resistors should be located as
close to the encoder as possible
(within 4 feet). Each of the three
encoder outputs can drive a single
TTL load in this configuration.
The HEDS-5500, 5600, and
HEDM-5500, 5600 two channel
encoders do not normally require
pull-up resistors. However, 3.2 k
pull-up resistors on output pins 3
and 5 (Channels A and B) are
recommended to improve rise
times, especially when operating
above 100 kHz frequencies.
Mechanical Characteristics
Parameter
Symbol
Dimension
Tolerance
[1]
Units
Codewheel Fits These
Standard Shaft Diameters
2
5
3
6
4
8
+0.000
-0.015
mm
5/32
3/16
1/8
1/4
+0.0000
-0.0007
in
Moment of Inertia
J
0.6 (8.0 x 10
-6
)
g-cm
2
(oz-in-s
2
)
Required Shaft Length
[2]
14.0 (0.55)
±
0.5
(
±
0.02)
mm
(in.)
Bolt Circle
[3]
2 screw
mounting
19.05
(0.750)
±
0.13
(
±
0.005)
mm
(in.)
3 screw
mounting
20.90
(0.823)
±
0.13
(
±
0.005)
mm
(in.)
external
mounting ears
46.0
(1.811)
±
0.13
(
±
0.005)
mm
(in.)
Mounting Screw Size
[4]
2 screw
mounting
M 2.5 or (2-56)
mm (in.)
3 screw
mounting
M 1.6 or (0-80)
mm (in.)
external
mounting ears
M 2.5 or (2-56)
mm (in.)
Encoder Base Plate
Thickness
0.33 (0.130)
mm (in.)
Hub Set Screw
(2-56)
(in.)
Notes:
1. These are tolerances required of the user.
2. The HEDS-55X5 and 56X5, HEDM-5505, 5605 provide an 8.9 mm (0.35 inch) diameter hole through the housing for longer motor
shafts. See Ordering Information.
3. The HEDS-5540 and 5640 must be aligned using the aligning pins as specified in Figure 3, or using the alignment tool as shown in
“Encoder Mounting and Assembly”. See also “Mounting Considerations.”
4. The recommended mounting screw torque for 2 screw and external ear mounting is 1.0 kg-cm (0.88 in-lbs). The recommended
mounting screw torque for 3 screw mounting is 0.50 kg-cm (0.43 in-lbs).
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