56mm Diameter Optical Encoder Modular
The HKT56 series are high performance two and three channel optical incremental encoders. These encoders emphasize high reliability, high resolution, and easy assembly. Each encoders contains a LED source (emitter), an integrated circuit with detectors and output circuitry, and a code-wheel which rotates between the emitter and detector integrated circuit. This index is an active high pulse that occurs once every full rotation of the code-wheel. Resolutions up to 2048 counts per revolution are available in the two and three channel versions.
Features:
Two or three channel quadrature output with optional index pulse, TTL compatible single ended outputs on HKT56 series, 100 C operating temperature, easy assembly, no signal adjustment necessary, resolutions up to 2048 counts per revolution, maximum shaft diameter of 20mm.
Applications:
The HKT56 series provide motion detection to a very high resolution and accept a variety of shaft sizes up to a maximum of 20mm.
Output Waveform
90 Output phase difference, CW rotation
(CW rotation as seen from fit surface)
Square-wave accuracy: X1 + X2 = 1/2T 1/12T, X3 + X4 = 1/2T 1/12T
Pitch error of period: 0.01T
Pitch error of phase position: 1/18T
Z Phase: Tz=1/4T (1T,1/2T,1/4T…)
Period of pulses: T=360 /N (N: output pulses)
Signal accuracy: Xn=1/4T 1/12T (n=1,2,3,4)
A leads B clockwise when viewing the encoder shaft end.
The position of Z shaft against A,B phase is not specified.
Technical Specifications
| Electrical specifications | |
|---|---|
| Output wave | Square wave |
| Output signals | A,B, phase or A,B,Z phase |
| Current consumption | 40mA |
| Output current | 0~5mA |
| Response frequency | 0~100KHz |
| Output phase difference | 90 45 |
| Supply voltage | 5V DC |
| Signal level | VH 85% Vcc, VL 0.3V |
| Number of pulses | 1000,1024,2000,2048 (other number of pulse available on request) |
| Output circuit | Voltage, Line driver |
| Mechanical Specifications | |
| Rotor inertiaof code-wheel | Appr. 6.0×10-8 Kgm2 |
| Hollow shaft diameter | 20mm |
| Shock resistance | 980m/s2, 6ms, 2 hours each on XYZ |
| Vibration proof | 50m/s2, 10~200Hz, 2 hours each on XYZ |
| Working life | MTBF 50000h (+25 C, 2000rpm) |
| Weight | Appr. 25g (with 0.5 meter cable) |
| Environmental Specifications | |
| Working humidity | 30~85% (no condensation) |
| Storage temperature | -40 C~100 C |
| Working temperature | -25 C~100 C |
| Weld temperature | 260 C |
| Protection class | IP54 |
Terminal Assignment
| Color code | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| Cable Color | Black | Red | Green | Brown | Grey | White | Yellow | Orange |
| Line driver output | 0V | Vcc | SIG A | SIG A | SIG B | SIG B | SIG Z | SIG Z |
| Cable code | 1 | 2 | 3 | 4 | 5 | – | – | – |
| Cable color | Black | Yellow | Green | Red | White | – | – | – |
| Voltage output | 0V | SIG Z | SIG A | Vcc | SIG B | – | – | – |
Ordering Code
| HKT56 | 08 | WZ | 001 | G | 500 | BZ | 5 | E |
|---|---|---|---|---|---|---|---|---|
| Series | Hollow shaft diameter | Encoder module | Sequence number | Connection | Number of pulese | Output signals | Supply voltage | Output circuit |
Dimensions
Motors described above are typical and can be customized upon request.
