EncoderWorks can configure OCE-CAA1B-1213-F12W-HFZ as a custom compatible replacement solution for absolute multiturn CANopen feedback where node address, baud rate, CAN termination, 25-bit position structure, ATEX oil-and-gas installation boundary, and Ø12 mm solid-shaft fit must remain aligned with the installed control system. The failure boundary is not only the 10–30 VDC supply, but also CAN High / CAN Low polarity, CAN-Identifier behavior, DS-406 object compatibility, preset behavior, transmission mode, stainless ATEX mounting, and hazardous-area approval scope. Typical production lead time: 15 working days.
This model is used where the control system reads absolute multiturn position over a CANopen network in a Zone 1 & 21 oil-and-gas hazardous-area installation. A compatible replacement must preserve the 13-bit singleturn and 12-bit multiturn position structure, Binary position handling inside the device, CANopen DS-406 behavior, node number, baud-rate setting, termination logic, radial bus wiring layout, and Ø12 mm single-flat solid-shaft mechanical interface.
System Limits
The first system boundary is the CANopen network configuration. OCE-CAA1B-1213-F12W-HFZ uses a CANopen interface with DS-406 device behavior, so the controller must see the same node address, baud rate, CAN-Identifier behavior, resolution setting, preset function, limit-switch handling, CAM behavior, bootloader availability, and transmission mode. If the replacement is installed with a wrong node number, wrong baud rate, changed object behavior, mismatched preset logic, or different cyclic / sync / polled transmission behavior, the bus may still communicate while the axis reports wrong position, missing events, unstable status, or incorrect multiturn value.
The second boundary is the CAN physical layer and hazardous-area connection structure. CAN High, CAN Low, CAN GND, supply reference, GND, shield handling, terminal resistor status, and outgoing-bus continuity must match the existing topology. A correct encoder can still fail if the termination is enabled at the wrong point, CAN H/L is reversed, CAN GND is omitted, shield continuity is poor, or the blind-plug and cable-entry arrangement compromises the ATEX sealing boundary.
Wiring & Installation
Before replacement, confirm the full installed model code, CANopen node address, baud rate, CAN-Identifier requirement, DS-406 object use, resolution setting, preset requirement, limit-switch use, CAM use, transmission mode, and terminal resistor position. Do not treat this as a Profinet, Profibus, EtherNet/IP, Bit Parallel, or incremental replacement, because the controller is reading a configured CANopen device rather than an Ethernet profile device, fieldbus node, discrete data word, or A/B/Z pulse train.
The solid-shaft installation must also be checked carefully. The Ø12 mm single-flat shaft, 20 mm shaft length, 78 mm ATEX clamp-flange interface, coupling type, shaft insertion depth, axial load, radial load, stainless housing boundary, and alignment accuracy can affect long-term stability. Poor coupling alignment, excessive side load, loose cable entries, shield discontinuity, or incorrect mounting preload can cause CAN bus dropouts, mechanical drift, intermittent diagnostics, or early bearing wear. Hazardous-area suitability must be confirmed against the installed Zone 1 & 21 oil-and-gas requirement and certificate scope before shipment.
Custom Compatible Solution
- Match CANopen DS-406 device behavior, 13-bit singleturn plus 12-bit multiturn feedback, node address range, baud rate, and CAN-Identifier expectations
- Preserve CAN High / CAN Low wiring, CAN GND reference, terminal resistor logic, shield continuity, supply wiring, preset behavior, and transmission mode
- Adapt the Ø12 mm solid shaft with single flat, 20 mm shaft length, 78 mm ATEX clamp-flange class, stainless structure, and radial connection boundary
- Review DS-406 object compatibility, resolution, limit switches, CAMS, hazardous-area scope, and shaft coupling alignment before shipment
Key Data
| Item | Data |
|---|---|
| Model | OCE-CAA1B-1213-F12W-HFZ |
| Encoder type | Absolute multiturn rotary encoder for Zone 1 & 21 oil-and-gas installation |
| Interface | CANopen |
| Profile / class | DS-406 |
| Supply voltage | 10–30 VDC |
| Output driver | CAN transceiver, opto-coupler isolated |
| Sensor technology | Optical |
| Singleturn resolution | 13 bit |
| Multiturn resolution | 12 bit |
| Total position structure | 25-bit absolute multiturn data |
| Code | Binary |
| Multiturn technology | Mechanical gearing, no battery |
| Transmission rate | 20 kBaud to 1 MBaud class boundary |
| Manual functions | Address selector 0–99 and terminal resistor via connection cap |
| Programming functions | Resolution, preset, 2 limit switches, 8 CAMS, baud rate, CAN-Identifier, bootloader, polled / cyclic / sync transmission modes |
| Connection | 2 × blind plug radial connection boundary |
| Connection orientation | Radial |
| Shaft / flange | Solid shaft, single flat, Ø12 mm × 20 mm, 78 mm ATEX clamp flange class |
| Housing material | Stainless steel |
| Protection class | IP66 / IP67 boundary requires confirmation against installed version |
| Hazardous-area boundary | Zone 1 & 21 oil-and-gas compliance requires confirmation against installed certificate scope |
| Key replacement checks | Node address, baud rate, CAN termination, CAN H/L mapping, CAN GND, DS-406 objects, preset, transmission mode, Ø12 mm solid-shaft coupling fit, ATEX certificate scope |
