We developed a custom solution for the OCM-S101B-0016-E14W-HFZ encoder, intended for hazardous-area systems where SSI absolute feedback must remain stable under vibration, moisture, and industrial noise while meeting Zone 1 and 21 installation requirements. This configuration uses a blind hollow shaft Ø14 mm, ATEX blind-hollow flange Ø78 mm, stainless steel V4A housing, and an SSI with Preset interface. It is not a general-purpose encoder. It is a serial absolute feedback solution where SSI timing, hazardous-area installation quality, and hollow-shaft alignment determine whether the system remains usable. Typical production lead time: 15 working days.

Custom Solution Photos

OCM-S101B-0016-E14W-HFZ SSI Absolute Encoder Solution-EncoderWorks
OCM-S101B-0016-E14W-HFZ SSI Absolute Encoder Solution-EncoderWorks

Stable operation depends on hollow-shaft fit, flange mounting quality, sealing integrity, and correct SSI signal integration.

System Limits

  • Clock outside 100 kHz to 2 MHz → SSI transmission becomes invalid
  • Wrong preset or direction logic → position reference becomes incorrect at system level
  • Excess misalignment or shaft overload → lifetime and feedback stability drop

This model is built around SSI with Preset, not around fieldbus or local pulse-only logic. The main bottleneck is therefore signal timing and serial integration rather than raw encoder mechanics. It provides 16-bit singleturn absolute feedback with binary code, uses an RS422 output driver, and accepts clock input via optocoupler. If controller clocking, preset handling, or direction logic is wrong, usable position data is lost before the encoder itself is mechanically overstressed.

Installation and Wiring Constraints

  • Use GND / Power Supply / DIR / Preset / Clock+ / Clock- / Data- / Data+ exactly as defined
  • Keep SSI timing within the specified 100 kHz to 2 MHz range
  • Maintain sealing and installation discipline required for CE + ATEX Zone 1 & 21 (Mining) service
  • Keep radial connection routing stable and isolated from avoidable mechanical stress
  • Respect the static misalignment limit of ±0.3 mm axial / ±0.5 mm radial and the dynamic misalignment limit of ±0.1 mm axial / ±0.2 mm radial
  • Do not exceed 60 N axial or 80 N radial shaft load.

Failure boundary:

  • Wrong clocking → unstable or unreadable SSI data
  • Wrong preset or DIR logic → incorrect absolute position in the control system
  • Excess shaft load or weak hollow-shaft installation → degraded mechanical reliability
  • Excessive misalignment → unstable operation and shortened service life.

Replacement and Interface Mapping

  • Suitable for SSI-based hazardous-area absolute positioning systems
  • Applicable where Zone 1 / 21 approval, blind hollow shaft, and absolute feedback are required
  • Not suitable where SSI timing, hazardous-area installation, or shaft load and misalignment control cannot be ensured
  • Designed for serial absolute integration, not for Profibus or PROFINET replacement.

Key Data

  • Model: OCM-S101B-0016-E14W-HFZ
  • Type: Absolute encoder, SSI with Preset
  • Interface: SSI with Preset
  • Interface cycle time: ≥ 25 µs
  • Singleturn resolution: 16 bit
  • Code: Binary
  • Output driver: RS422
  • Supply voltage: 4.5–30 VDC
  • Power consumption: ≤1.5 W
  • Start-up time: <1 s
  • Clock frequency: 100 kHz–2 MHz
  • Sensor technology: Optical
  • Flange: Blind Hollow, Ø78 mm ATEX
  • Shaft: Blind Hollow, Ø14 mm, depth 30 mm
  • Shaft load: 60 N axial / 80 N radial
  • Max speed: ≤3000 rpm
  • Protection: IP66 / IP67
  • Temperature: -40 °C to +70 °C
  • Approval: CE + ATEX Zone 1 & 21 (Mining).