HD25 Features
- NEMA size 25 package
- Anodized black aluminum housing
- 64 to 10,000 cycles per revolution (CPR)
- 256 to 40,000 pulses per revolution (PPR)
- 2-channel quadrature output with optional index
- Single-ended or differential outputs
- Sealed IP65 option
HD25 Product Description
The HD25 is a rugged optical incremental shaft encoder designed for heavy-duty industrial applications. The housing, machined from a solid billet aluminum block and finished with black anodizing, conforms to the industrial standard size 25 package. Size 25 encoders are widely used and considered the backbone of feedback devices found in factory automation and industrial applications. The HD25 will drop directly into existing applications to provide a superior solution at a competitive cost.
Mechanical Drawings
Specifications
ENVIRONMENTAL
| Parameter | Value |
|---|---|
|
Operating Temperature |
-40C to 100C -40C to 85C -25C to 100C -25C to 85C |
| Humidity Non-sealed Sealed |
98% non-condensing 100% condensing (NEMA IP65) |
| Vibration (10 to 2kHz, sinusoidal) | 20G |
| Shock (6 milliseconds, half-sine) | 75G |
| Electrostatic Discharge Single-ended (-S version), IEC 61000-4-2 Differential (-D version), Human Body Model |
± 4 kV ± 2 kV |
MECHANICAL
| Parameter | Value |
|---|---|
| Size | NEMA size 25 |
| Housing and Cover Material | Anodized aluminum |
| Shaft Material | Stainless steel |
| Weight | 17 oz. |
| Shaft Diameter | 0.3748 in. (+0.0000 in. -0.0003 in.) |
| Shaft Optional Flat Size | .08 in. long x .03 in. deep |
| Max. Acceleration | 100000 rad / sec² |
| Max. Shaft Speed (1) Non-sealed (mechanical) Sealed (mechanical) |
15000 rpm 6000 rpm |
| Shaft Torque Non-sealed Sealed |
< 0.5 in-oz 3.5 in-oz typical |
| Max. Shaft Load Axial Radial |
40 lb. 35 lb. |
| Max. Shaft Runout | 0.0003 in. T.I.R. |
| Bearing Life @ 4 Pound Load | 2.3 x 10^9 revolutions |
| Moment of Inertia | 2.8 x 10^-4 oz-in-sec² |
| Technical Bulletin TB1001 - Shaft and Bore Tolerances | Download |
(1) The maximum speed due to electrical considerations is dependent on the CPR. See the EM1 and EM2 product pages.
PHASE RELATIONSHIP
B leads A for clockwise shaft rotation, and A leads B for counterclockwise rotation viewed from the shaft side of the encoder.
ELECTRICAL
- Specifications apply over the entire operating temperature range.
- Typical values are specified at 25°C.
- Output driver IC: ET7272B
- For complete details, see the EM1 and EM2 product pages.
| PARAMETER | MIN. | TYP. | MAX. | UNITS | CONDITIONS |
|---|---|---|---|---|---|
| Supply Voltage (Vs) Low Voltage Version High Voltage Version |
4.5 9.5 |
5.0 |
5.5 30 |
V |
|
| Supply Current | 138 | mA | |||
| Low-level Output | 0.4 | 0.5 | V | IOL = 20mA | |
| High-level Output | Vs - 2.0 | V | IOH = -20mA | ||
| Output Rise/Fall Time | 700 | 980 | nS |
7-PIN CONNECTOR PIN-OUT
| PIN | DESCRIPTION |
|---|---|
| A | A channel |
| B | B channel |
| C | Index |
| D | +VDC |
| E | Case ground |
| F | Common |
| G | NC |
10-PIN CONNECTOR PIN-OUT
| PIN | DESCRIPTION |
|---|---|
| A | A+ channel |
| B | B+ channel |
| C | Index+ |
| D | +VDC |
| E | NC |
| F | Common |
| G | Case ground |
| H | A- channel |
| I | B- channel |
| J | Index- |
Notes
- Cables and connectors are not included and must be ordered separately.
- US Digital® warrants its products against defects in materials and workmanship for two years. See complete warranty for details.
Configuration Options |
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| HD25 | - | CPR (Cycles Per Revolution) 64 100 200 400 500 512 1000 1024 1800 2000 2048 2500 3600 4000 4096 5000 7200 8000 8192 10000 | - | Shaft Type N (Shaft without Flat) F (Shaft with Flat) | - | Shaft Seal N (Non-Sealed) S (Sealed) | - | Voltage L (Low Voltage) H (High Voltage) | - | Index IE (Index) NE (Non-Index) | - | Output S (Single-Ended) D (Differential) | ||||||||||||||||||||||||||||||
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PLEASE NOTE: This chart is for informational use only. Certain product configuration combinations are not available. Visit the HD25 product page for pricing and additional information. |
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