We developed a custom solution for the UCD-DPC1B-1216-HUY0-H72 encoder, intended for industrial systems where Profibus absolute feedback must remain stable under vibration, moisture, long service operation, and fieldbus communication load. This configuration uses a blind hollow Ø15.9 mm shaft, Ø58 mm blind-hollow flange, magnetic sensing, and a Profibus DP interface with 3 × M12 radial connectors. It is not a pulse encoder. It is a fieldbus-integrated absolute feedback solution where node addressing, terminal resistance, bus wiring, and hollow-shaft alignment determine whether the position data remains usable. Typical production lead time: 15 working days.
Custom Solution Photos


Stable operation depends on hollow-shaft fit, radial M12 connection layout, bus topology, and correct Profibus configuration.
System Limits
- Wrong node address or terminal resistor setting → Profibus communication becomes unstable
- Incorrect preset, scaling, or counting direction → position logic becomes invalid
- Excess shaft misalignment → shortened service life and unstable feedback
This model uses Profibus DP with DPV0, DPV1, and DPV2 Class 2, not SSI, PROFINET, analog, or parallel output. The real system bottleneck is bus configuration rather than sensor resolution. It provides 16-bit singleturn and 12-bit multiturn absolute feedback, with self-powered magnetic pulse counting for multiturn operation without battery or gear train. If the node number, bus termination, scaling, preset, or teach-in logic is wrong, the PLC receives unusable position data even when the encoder is mechanically normal.
Installation and Wiring Constraints
- Wire Power Supply / GND / Bus line A / Bus line B correctly
- Use Bus out and Bus in M12 connectors according to topology
- Set the address selector 0–99 before commissioning
- Match the terminal resistor DIP switch to the real Profibus segment
- Respect static misalignment ±0.3 mm axial / ±0.5 mm radial
- Respect dynamic misalignment ±0.1 mm axial / ±0.2 mm radial
Failure boundary:
- Address conflict → no stable Profibus communication
- Wrong termination → intermittent bus faults
- Wrong scaling or preset → incorrect absolute position
- Excess misalignment → reduced mechanical reliability
Replacement and Interface Mapping
- Suitable for Profibus absolute positioning systems
- Applicable where blind hollow Ø15.9 mm shaft, M12 bus connection, and battery-free multiturn feedback are required
- Not suitable where SSI, PROFINET, analog, CANopen, or parallel output is expected
- Best used where Profibus topology, node addressing, and shaft alignment can be controlled
Key Data
- Model: UCD-DPC1B-1216-HUY0-H72
- Type: Absolute encoder, Profibus DP
- Interface: Profibus DP
- Profile: DPV0, DPV1, DPV2 Class 2
- Transmission rate: ≤12 Mbaud
- Interface cycle time: ≥1 ms
- Singleturn resolution: 16 bit
- Multiturn resolution: 12 bit
- Code: Binary
- Sensor technology: Magnetic
- Supply voltage: 10–30 VDC
- Power consumption: ≤2.5 W
- Start-up time: <1 s
- Shaft: Blind hollow Ø15.9 mm, depth 28 mm
- Flange: Blind hollow, Ø58 mm
- Connection: 3 × M12 radial connectors
- Protection: IP65 shaft / IP66-IP67 housing
- Temperature: -40 °C to +85 °C
- Max speed: ≤12000 rpm
- Weight: 510 g

