When replacing CVS78E-011K2A0BN-0012, the EncoderWorks custom compatible replacement should first control CANopen baud-rate agreement, 12-bit singleturn mapping, and Ø10 mm axial clamping-flange alignment. This model should not be treated like the 16-bit versions. The lower resolution, K2 cable length, axial exit direction, and aluminum housing execution create a different replacement boundary.
The CVS78E-011K2A0BN-0012 is a CANopen singleturn absolute encoder configuration with binary output code, 12-bit singleturn resolution, 10–30 VDC supply, explosion-proof IP66 construction, aluminum housing execution, Ø10 mm solid shaft, clamping flange, and K2 axial 2 m cable connection. It is a singleturn device, so the controller should expect a 12-bit angular position value, not a multiturn frame.
The first failure boundary is CANopen baud-rate and node setup. Node address, baud rate, CAN high / CAN low wiring, CAN ground, and the 121 Ω termination state must match the original bus. If the baud-rate switch is wrong, the address is duplicated, or termination is placed incorrectly, the encoder may power up but fail to exchange valid position data.
This replacement fails when the device is visible electrically, but the PLC reads no valid or correct angle because CANopen address, baud rate, CAN H/L wiring, termination, or DS406 profile settings do not match the original encoder. That is a network-configuration failure, not a sensing failure.
The second boundary is 12-bit parameter agreement. Resolution per revolution, preset value, counting direction, operating mode, limit switches, and cam functions can change the angle delivered to the controller. A 12-bit replacement can communicate normally and still be wrong if the PLC project expects 16-bit scaling.
Mechanically, the Ø10 mm solid clamping shaft must be aligned with a suitable coupling. Axial cable exit needs rear clearance, and the 2 m cable route should preserve shielding and avoid tension or sharp bending.
The replacement decision should first confirm explosion-proof requirement, aluminum housing execution, Ø10 mm clamping-flange geometry, K2 axial cable routing, CANopen DS301 / DS406 compatibility, 12-bit singleturn mapping, node address, baud rate, 121 Ω termination, CAN H/L wiring, preset value, counting direction, shield grounding, cable clearance, and coupling load. EncoderWorks treats CVS78E-011K2A0BN-0012 as an industrial encoder custom compatible solution where CANopen baud-rate agreement and axial clamping-shaft mechanics decide field reliability.
Typical production lead time: 15 working days.
Key Data
| Item | Data |
|---|---|
| Model | CVS78E-011K2A0BN-0012 |
| Encoder type | Singleturn absolute encoder |
| Interface | CANopen |
| Communication profile | DS301 |
| Device profile | DS406 / DS417 programmable class 2 |
| Resolution | 12-bit singleturn |
| Code | Binary |
| Supply voltage | 10–30 VDC |
| Housing execution | Aluminum |
| Shaft / flange | Ø10 mm solid shaft, clamping flange |
| Connection | K2 axial cable, 2 m |
| Protection class | Explosion-proof, IP66 |
| Main engineering anchor | CANopen baud rate and axial clamping shaft |
| Main failure boundary | Wrong baud rate, address conflict, termination error, 12-bit scaling mismatch |
