We developed a custom solution for the OCM-S101B-0013-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 mining installation requirements. This configuration uses a blind hollow Ø14 mm shaft, Ø78 mm ATEX blind-hollow flange, 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, preset logic, hazardous-area installation quality, and hollow-shaft alignment determine whether the position data remains usable. Typical production lead time: 15 working days.
Custom Solution Photos
Stable operation depends on hollow-shaft fit, radial blind-plug connection layout, sealing integrity, and correct SSI signal integration.
System Limits
- Clock outside 100 kHz to 2 MHz → SSI transmission becomes invalid
- Wrong preset or DIR logic → position reference becomes incorrect
- Excess shaft misalignment → lifetime and feedback stability drop
This model uses SSI with Preset, RS422 output driver, optical sensing, 13-bit singleturn absolute feedback, and binary code. The main bottleneck is not resolution but SSI timing and control-side interpretation. If clocking, preset handling, or direction logic is wrong, the controller receives unusable position data even when the encoder is mechanically normal.
Installation and Wiring Constraints
- Wire GND / Power Supply / DIR / Preset / Clock+ / Clock- / Data- / Data+ correctly
- Keep clock speed within 100 kHz–2 MHz
- Maintain sealing for CE + ATEX Zone 1 & 21 mining service
- Respect static misalignment ±0.3 mm axial / ±0.5 mm radial
- Respect dynamic misalignment ±0.1 mm axial / ±0.2 mm radial
- Do not exceed 60 N axial / 80 N radial shaft load
Failure boundary:
- Wrong clocking → unstable SSI data
- Wrong preset → position offset error
- Wrong DIR → reversed count direction
- Excess misalignment → shortened service life
Replacement and Interface Mapping
- Suitable for SSI hazardous-area absolute positioning systems
- Applicable where blind hollow Ø14 mm shaft, stainless housing, and Zone 1 / 21 approval are required
- Not suitable where SSI timing, shaft alignment, or hazardous-area sealing cannot be controlled
Key Data
- Model: OCM-S101B-0013-E14W-HFZ
- Type: Absolute encoder, SSI with Preset
- Interface cycle time: ≥25 µs
- Singleturn resolution: 13 bit
- Code: Binary
- Output driver: RS422
- Supply voltage: 4.5–30 VDC
- Power consumption: ≤1.5 W
- Start-up time: <1 s
- Sensor technology: Optical
- Shaft: Blind hollow, Ø14 mm, depth 30 mm
- Flange: Blind Hollow, Ø78 mm ATEX
- Protection: IP66 / IP67
- Temperature: -40 °C to +70 °C
- Approval: CE + ATEX Zone 1 & 21 Mining
