OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

HEDS-8907-001

P1-P3P4-P6P7-P9P10-P12
7
Electrical Interface
To insure reliable encodingperformance, the HEDS-5540/5640 and HEDM-5540 three channel encoders require 2.7 kΩ (±
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 conguration. The HEDS-5500, 5600, and HEDM-5500, 5600 two channel encoders do not normally require
pull-up resistors. However, 3.2 kΩ 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.
Figure 1. Pull-up Resistors on HEDS-5x40 and HEDM-5540 Encoder Outputs.
Mechanical Characteristics
Parameter Symbol Dimension Tolerance
[1]
Units
Codewheel Fits These Standard
Shaft Diameters
2 3 4
5 6 8
+0.000
-0.015
mm
5/32 1/8
3/16 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 specied 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).
8
Figure 2. Mounting Holes.
Figure 3. Optional Mounting Aids.
Figure 4. Mounting with External Ears.
Mounting Considerations
The HEDS-5540 and 5640 three channel encoders and the HEDM Series high resolution encoders must be aligned using
the aligning pins as specied in Figure 3, or using the HEDS-8910 Alignment Tool as shown in Encoder Mounting and
Assembly.
The use of aligning pins or alignment tool is recommended but not required to mount the HEDS-5500 and 5600. If these
two channel encoders are attached to a motor with the screw sizes and mounting tolerances specied in the mechanical
characteristics section without any additional mounting bosses, the encoder output errors will be within the maximums
specied in the encoding characteristics section. The HEDS-5500 and 5540 can be mounted to a motor using either the
two screw or three screw mounting option as shown in Figure 2. The optional aligning pins shown in Figure 3 can be
used with either mounting option. The HEDS-5600, 5640, and HEDM-5600 have external mounting ears which may be
used for mounting to larger motor base plates. Figure 4 shows the necessary mounting holes with optional aligning pins
and motor boss.
9
Encoder Mounting and Assembly
1a. For HEDS-5500 and 5600: Mount encoder base plate onto motor. Tighten screws. Go on to step 2.
1b. For HEDS-5540, 5640 and HEDM-5500, 5600, 5540 : Slip alignment tool onto motor shaft. With alignment tool in
place, mount encoder baseplate onto motor as shown above. Tighten screws. Remove alignment tool.
1c. It is recommended that adhesive* is applied to the screw-baseplate interface to prevent screw loosening due to
eect of high temperature on plastic
2. Snap encoder body onto base plate locking all 4 snaps.
3a. Push the hex wrench into the body of the encoder to ensure that it is properly seated into the code wheel hub set
screws. Then apply a downward force on the end of the hex wrench. This sets the code wheel gap by levering the
code wheel hub to its upper position.
3b. While continuing to apply a downward force, rotate the hex wrench in the clockwise direction until the hub set
screw is tight against the motor shaft (The recommended torque to tighten the setscrew is 15-18 ozf.inch). The hub
set screw attaches the code wheel to the motor’s shaft.
3c. Remove the hex wrench by pulling it straight out of the encoder body.
4. Use the center screwdriver slot, or either of the two side slots, to rotate the encoder cap dot clockwise from the one
dot position to the two dot position. Do not rotate the encoder cap counterclockwise beyond the one dot position.
The encoder is ready for use!
P1-P3P4-P6P7-P9P10-P12

HEDS-8907-001

Mfr. #:
Buy HEDS-8907-001
Manufacturer:
Broadcom / Avago
Description:
Encoders Klinkie Silicon Protector
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet