EncoderWorks can configure OCM-CAA1B-1212-E14W-HFE as a custom compatible replacement solution for absolute multiturn CANopen feedback where node address, baud rate, CAN termination, 24-bit position structure, ATEX mining installation boundary, and Ø14 mm blind-hollow 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 mining hazardous-area installation. A compatible replacement must preserve the 12-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 Ø14 mm blind-hollow mechanical interface.
System Limits
The first system boundary is the CANopen network configuration. OCM-CAA1B-1212-E14W-HFE 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 mining 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 Bit Parallel, Profinet, Profibus, EtherNet/IP, Analog Voltage, or incremental replacement, because the controller is reading a configured CANopen device rather than a discrete parallel word, Ethernet profile device, fieldbus node, voltage signal, or A/B/Z pulse train.
The blind-hollow installation must also be checked carefully. The Ø14 mm hollow shaft, 30 mm insertion depth, 78 mm ATEX flange interface, clamping condition, torque restraint, radial connection clearance, stainless housing boundary, static and dynamic misalignment, and grounding continuity can affect long-term stability. Poor clamping, excessive shaft offset, 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 mining requirement and certificate scope before shipment.
Custom Compatible Solution
- Match CANopen DS-406 device behavior, 12-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 Ø14 mm blind-hollow shaft, 30 mm depth, 78 mm ATEX flange class, stainless structure, and radial connection boundary
- Review DS-406 object compatibility, resolution, limit switches, CAMS, mining hazardous-area scope, and shaft misalignment before shipment
Key Data
| Item | Data |
|---|---|
| Model | OCM-CAA1B-1212-E14W-HFE |
| Encoder type | Absolute multiturn rotary encoder for Zone 1 & 21 mining installation |
| Interface | CANopen |
| Profile / class | DS-406 |
| Supply voltage | 10–30 VDC |
| Output driver | CAN transceiver, galvanically isolated by opto-couplers |
| Sensor technology | Optical |
| Singleturn resolution | 12 bit |
| Multiturn resolution | 12 bit |
| Total position structure | 24-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 | 3 × blind plug radial connection boundary |
| Connection orientation | Radial |
| Shaft / flange | Blind hollow, Ø14 mm shaft, 30 mm depth, 78 mm ATEX flange class |
| Housing material | Stainless steel |
| Protection class | IP66 / IP67 boundary requires confirmation against installed version |
| Hazardous-area boundary | Zone 1 & 21 mining 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, Ø14 mm blind-hollow fit, ATEX certificate scope |
