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Design Features:
- Mount compatible with HEDS encoders
- Bearing design simplifies
encoder attachment
- Resolutions up to 20,000 lines per revolution
- 4, 6 or
8 pole commutation
- Differential line drivers
- Protective enclosure
- Multiple Bolt Circle mounting
- Through shaft sizes up
to 0.375” (10mm) Diameter
- High Noise Immunity
- Cost Competitive with Modular Encoders
- 500 kHz Frequency
Response
- RoHS Construction
- No Centering Tools Required For Easy
Assembly
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Description:
Encoder Model HR12 provides an improved feedback solution in applications
typically using modular encoders. The HR12 provides feedback
capabilities where the others leave off – high line count
resolution, high temperature operation, rugged bearing construction,
large tolerance to radial and axial shaft play, commutation for
brushless motor control, with a strain relieved cable. Quadrature
output with index pulse and three-phase commutation provided
with industrial 26C31 differential drivers. A flexible member
allows for much greater tail shaft run out and TIR than can be
tolerated by modular encoder designs, plus it provides 30 degrees
of rotation for commutation timing.
Ordering Information
Sample: HR12-1000-4-A-B-L-C-A
| Model |
PPR |
Poles |
Electrical |
Hub Configuration |
Hub Size |
Mounting |
Index |
| HR12 |
24*
256
360
500
512
1000
1024
1250
2000
|
2048
2500
4000
4096
5000
8192
10000
16384
20000 |
0=0
4=4
6=6
8=8 |
A=RS422 (TTL)
B=oc UVW |
| H= |
HEDS Compatible Configuration |
|
C=5mm
D=6mm
E=8mm
F=10mm
L=.25"
M=.3125"
N=.375" |
H= HEDS |
A=Gated to AB, 90deg |
Consult Factory For Configurations Not Shown, * 24PPR only available
0 poles.
Electrical Specifications
| Input Voltage |
5 VDC ± 5% |
| Input Current Requirements |
65mA Typ., 100mA Max Plus Interface Loads |
| Input Ripple |
2% Peak to Peak @ 5 VDC |
| Output Circuits |
(A) 26C31 RS 422A Line Driver (TTL Compatible)
(B) ABZ Line Driver, UVW Open Collector (No U’ V’ W’) |
| Incremental Output Format |
Quadrature with A leading B for CW rotation.
Index Pulse true over A and B High. |
| Frequency Response |
500 kHz |
| Symmetry |
180 Degrees ± 10% Typical |
| Minimum Edge Separation |
<4000PPR = 54 electrical degrees
≥4000PPR = 45 electrical degrees |
| Commutation Format |
Three Phase 4, 6 or 8 poles |
| Commutation Accuracy |
± 1° mechanical |
Environmental Specifications
| Storage Temperature |
-40 to 125° C |
| Operating Temperature |
-20 to 115° C |
| IP Rating |
52 |
| Humidity |
90% Non-Condensing |
| Vibration |
20 g's @ 50 to 500 CPS |
| Shock |
50 g's @ 11mS Duration |
Mechanical Specifications
| Through Shaft Diameter |
0.250", 0.3125", 0.375", 5mm
6mm ,8mm, 10mm
Tolerance: -0.0000, + 0.0006” |
| Recommended Shaft Engagement |
.50” Minimum |
| Radial Shaft Movement Max. |
0.007" TIR (Shaft eccentricity
plus radial play) |
| Axial Shaft Movement |
± 0.030" |
| Maximum Shaft Speed |
8000 RPM |
| Interface Connector |
Connector: JAE P/N F1-W15P-HFE |
| Mounting |
HEDS Compatible:
0-80 screw 3 places on .823” circle
2-56 screw 2 places on .750” circle |
| Moment of Inertia |
9.1 x 10-5 oz-in-S2 |
| Acceleration |
1x105 Radians/S2 |
| Accuracy |
Instrument Error 1.5 arc min. max |
ENCODER INSTALLTION INSTRUCTIONS
- Mount Encoder Base Plate to motor face with either 0-80 screw
3 places on .823” circle or 2-56 screw 2 places on .750” circle.
- Using two fingers slide encoder onto motor shaft (do not force).
Encoder height proper when top of connector body as same elevation
as top of Base Plate screw stems. Tighten encoder hub set screws
using .050” hex wrench.
- Install #4-40 x 3/16 hex pan
head through stainless steel flex mount into Base Plate.
- Install
cable assembly into encoder. 5. Secure encoder cover
For brushless motors requiring commutation timing:
- Prior to step 2: Rotate hub to zero index position shown in
Output Waveform section, if required for initial commutation
positioning. Power appropriate motor windings to lock motor shaft
location to matching U transition.
- Prior to step 5: Flex mount
screw can be loosened to allow final commutation timing adjustment.
Rotate encoder to match commutation signals to back driven EMF
motor windings. Retighten flex mount screw.
Additional installation and handling instruction available at:
www.quantumdev.com/pdf/EncoderMountingInstr.pdf
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