We developed a custom solution for the FGH6K-1200G-90G-NG-J/50P encoder, intended for heavy-duty shaft systems where direct hollow shaft mounting and stable incremental speed feedback must remain reliable under vibration, shaft movement, and industrial interference. This configuration provides 1200 ppr output, single terminal box structure, and integrates option J for reduced rotational frequency modulation, making it suitable for applications where signal smoothness is more important than increased pulse density. It is not a general-purpose encoder. It is a shaft-mounted speed feedback solution where installation quality and transmission stability determine whether the output remains usable. Typical production lead time: 15 working days.
Custom Solution Photos
Stable output depends on shaft fit, mounting rigidity, terminal integrity, and controlled signal routing.
System Limits
- Shaft eccentricity → unstable pulse output
- EMC interference → signal distortion over distance
- Weak mounting rigidity → frequency fluctuation
The FGH6 platform is built for harsh-duty speed feedback, with hollow shaft mounting preferred where coupling-based installation would reduce lifetime or signal quality. The encoder uses an optical measuring principle and supports 0°, 90°, reference pulse, and inverted signals. Option J reduces rotational frequency modulation through an optically adjusted pulse disk, which is useful when the control system requires smoother speed feedback with lower signal fluctuation.
Installation and Wiring Constraints
- Use direct hollow shaft mounting (Ø50 mm H7)
- Avoid coupling-based installation and shaft misalignment
- Keep signal wiring separate from power cables
- Use shielded cables in harsh EMC environments
- Consider FOC transmission for long-distance or interference-critical routing
Failure boundary:
- Poor mounting → unstable output
- Poor shielding → distorted signal
- Long cable without EMC control → degraded transmission quality
Replacement and Interface Mapping
- Suitable for heavy-duty speed feedback with low modulation requirement
- Applicable where 1200 ppr incremental signal and smooth output behavior are required
- Not suitable where installation precision or EMC control cannot be ensured
Key Data
- Model: FGH6K-1200G-90G-NG-J/50P
- Type: Heavy-duty hollow shaft incremental encoder
- Shaft: Ø50 mm H7
- Pulse: 1200 ppr
- Output: A, B, N + inverted
- Option J: reduced modulation
- Voltage: 12–30 VDC
- Speed: ≤4000 rpm
- Protection: IP66
- Temperature: -25 to +85 °C
FGH6K-2000G-90G-NG-J/50P Incremental Encoder
FGH6K-1024G-90G-NG-J/50P Industrial Encoder
FGH6K-5000G-90G-NG-V/50P High Frequency Encoder
FGH6K-2500G-90G-NG-J/50P Incremental Encoder Solution
