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.
