EncoderWorks develops a custom compatible replacement solution for 801736-01 XHI 861 focused on maintaining 1024 PPR incremental feedback, HC-HTL output characteristics, complementary S00/S00⁻, S90/S90⁻, and Sref/Sref⁻ signal structure, Ø16 mm blind hollow-shaft installation, and heavy-duty mechanical reliability without ADS Classic diagnostic functions. The replacement boundary is not only pulse compatibility, but also signal assignment, controller input matching, shield grounding, mechanical load capability, and field installation consistency. Typical production lead time: 15 working days.
801736-01 XHI 861 is configured for heavy-duty industrial feedback applications requiring stable incremental speed and position signals under vibration, shock, and high mechanical loading conditions. The compatible replacement focuses on preserving the primary encoder feedback path while removing the ADS Classic diagnostic interface. The machine controller should continue receiving the required HC-HTL incremental signals without depending on additional diagnostic communication functions.


System Limits
The first system boundary is the HC-HTL incremental signal path. The controller depends on correct S00/S00⁻, S90/S90⁻, and Sref/Sref⁻ signal interpretation, stable output-current capability, correct phase relationship, and reliable reference pulse processing. A replacement can appear electrically connected while still failing if the complementary channels, reference pulse behavior, or output level do not match the original control system.
The second boundary is the removal of ADS-related functions while preserving the main feedback interface. The original configuration includes additional diagnostic-related connections, including alarm and communication lines. For a no-ADS replacement, these functions should not be required by the machine control system. The primary incremental output channels, supply reference, shielding, and mechanical installation must remain correctly matched.
The Ø16 mm blind hollow shaft and 86-flange structure create an additional mechanical boundary. Shaft alignment, torque bracket orientation, coupling condition, and radial load must remain controlled to prevent vibration, bearing stress, or unstable feedback.
Wiring & Installation
Before replacement, confirm the complete installed configuration including 1024 PPR requirement, HC-HTL output type, S00/S00⁻, S90/S90⁻, Sref/Sref⁻ channel assignment, supply voltage, cable connection, shield termination, Ø16 mm hollow shaft dimensions, flange mounting, and torque bracket position.
For the no-ADS version, verify that the machine controller only requires the incremental feedback channels and does not depend on alarm or diagnostic communication wiring. Unused diagnostic-related conductors should be handled according to the machine electrical design.
During installation, maintain a continuous low-resistance shield connection and separate encoder wiring from motor, brake, inverter, and high-current cables. The hollow shaft should be installed concentrically without introducing additional radial force or coupling stress.
Custom Compatible Solution
- Match 1024 PPR HC-HTL incremental feedback with complementary S00/S90/Sref signals
- Preserve controller-side signal interpretation while removing ADS Classic diagnostic dependency
- Adapt Ø16 mm blind hollow shaft, 86-flange mounting, cable gland connection, and torque bracket orientation
- Validate phase accuracy, reference pulse behavior, grounding, EMC conditions, and commissioning parameters before shipment
Key Data
| Item | Data |
|---|---|
| Model | 801736-01 XHI 861 |
| Replacement type | HC-HTL incremental encoder without ADS function |
| Resolution | 1024 PPR |
| Output signal | High Current HTL |
| Channels | S00/S00⁻, S90/S90⁻, Sref/Sref⁻ |
| Supply voltage | 9–30 VDC |
| Shaft type | Ø16 mm blind hollow shaft |
| Flange | 86-flange |
| Connection | Cable gland |
| Protection rating | IP67 (IP66 at shaft inlet) |
| Max speed | 6000 rpm |
| Shaft load | 100 N axial / 300 N radial |
| Output frequency | 200 kHz max |
| Torque bracket | 120° orientation |
| Removed function | ADS Classic diagnostic system |
| Main replacement focus | Incremental feedback, wiring compatibility, mechanical fit, EMC |

