UCD-STB1B-1412-HTS0-CRW is not replaced safely by matching only the SSI interface; EncoderWorks treats it as a custom compatible absolute encoder solution where SSI word format, 12/14-bit scaling, 2048 PPR incremental RS422 track, preset wiring, and ø12.7 mm blind-hollow-shaft fit must be confirmed together. This replacement fails when the controller reads SSI position data but the incremental A/B/Z feedback, preset behavior, direction input, clock timing, or shaft reference does not reproduce the original encoder behavior.
The UCD-STB1B-1412-HTS0-CRW is a multiturn absolute encoder configuration with SSI with preset plus incremental RS422 interface, magnetic sensing technology, 12-bit singleturn resolution, 14-bit multiturn range, binary code, 2048 incremental pulses, 4.75–30 VDC supply, blind hollow ø58 mm flange, ø12.7 mm blind hollow shaft with 28 mm depth, radial 1 m PVC cable connection, and IP66/IP67 housing protection. The controller should continue reading 4096 steps per revolution across 16384 turns while also receiving the 2048 PPR incremental track.
The first failure boundary is SSI and incremental-track alignment. Data+/Data-, Clock+/Clock-, DIR, Preset, A, /A, B, /B, Z, /Z, and /Error must be wired by function. If the SSI frame is correct but the incremental track is scaled or phased incorrectly, the machine may show the right absolute position while the drive loses speed feedback, direction confidence, or index repeatability.
This replacement fails when SSI communication is present, but the controller reads the wrong position or unstable motion feedback because SSI word format, clock frequency, 12/14-bit scaling, preset logic, incremental RS422 channel mapping, 2048 PPR scaling, or cable assignment does not match the original encoder.
The second boundary is blind-hollow-shaft installation. The ø12.7 mm blind shaft, insertion depth, flange reference, radial cable route, shield grounding, cable bend radius, and static/dynamic misalignment limits must be checked together. Shaft fit and cable strain should not be used to compensate for coupling or mounting error.
The replacement decision should first confirm SSI with preset compatibility, 12-bit singleturn and 14-bit multiturn scaling, 2048 PPR incremental RS422 output, Data/Clock differential pairs, DIR and Preset wiring, 4.75–30 VDC supply, ø12.7 mm blind-hollow-shaft fit, 28 mm depth, radial 1 m cable assignment, IP65 shaft protection, IP66/IP67 housing protection, shield grounding, and cable strain limits. EncoderWorks treats UCD-STB1B-1412-HTS0-CRW as an industrial encoder custom compatible solution where SSI position accuracy and incremental-track integration decide field reliability.
Typical production lead time: 15 working days.
Key Data
| Item | Data |
|---|---|
| Model | UCD-STB1B-1412-HTS0-CRW |
| Encoder type | Multiturn absolute encoder with incremental track |
| Interface | SSI with Preset + Incremental RS422 |
| Resolution | 12-bit singleturn + 14-bit multiturn |
| Incremental output | 2048 PPR, A/B/Z with inverted channels |
| Supply voltage | 4.75–30 VDC |
| Shaft type | Blind hollow shaft |
| Shaft size | ø12.7 mm / 1/2", depth 28 mm |
| Connection | Radial PVC cable, 1 m |
| Protection class | Shaft IP65, housing IP66/IP67 |
| Main failure boundary | Wrong SSI scaling, incremental mapping, preset wiring, or shaft fit |
