UCD-DPC1B-1213-HRSS-H72 Profibus Multi-Turn Encoder, 6.35 mm Hollow Shaft

We developed a custom solution for model UCD-DPC1B-1213-HRSS-H72. Selected when multi-turn absolute feedback is required via Profibus, using a 58 mm blind hollow structure with a 6.35 mm (1/4") shaft, without battery-based turn counting. Typical production lead time: 15 working days. The referenced configuration uses Profibus DPV0 / DPV1 / DPV2 Class 2, magnetic sensing, 13-bit single-turn resolution, 12-bit multi-turn resolution, and a self-powered magnetic pulse counter without battery or gear train.

Key Specifications

• Interface: Profibus DPV0 / DPV1 / DPV2 Class 2
• Resolution: 13-bit single-turn + 12-bit multi-turn
• Code: Binary
• Multi-turn: self-powered magnetic counter, no battery, no gear train
• Supply: 10–30 VDC
• Protection: IP66/IP67
• Structure: 58 mm blind hollow, 6.35 mm shaft, 28 mm depth
• Speed: up to 3000 rpm

Decision Snapshot

• Best for: Profibus absolute positioning systems needing battery-free multi-turn retention
• Key fit: 6.35 mm hollow shaft, 58 mm blind hollow flange, 28 mm insertion depth
• Avoid if: the system only needs incremental feedback or is standardized on another motion-bus architecture; that follows from the listed Profibus-specific interface and bus-side wiring layout.

Custom Solution Photos

Encoder structure reference: 58 mm blind hollow flange, 6.35 mm shaft, radial M12 bus connector layout.

Bus Configuration & Communication

• Interface class: Profibus Class 2
• Transmission rate: up to 12 Mbaud
• Cycle time: ≥ 1 ms
• Functions: resolution, scaling, speed filter, preset, direction, limit switch, node number, teach mode, diagnostics

Primary integration risk: incorrect node addressing or termination-switch setup. Best practice: confirm address setting, termination status, and bus-in / bus-out continuity before power-up. That judgment is grounded in the listed address selection switch, termination DIP switch, and three-connector bus in/out layout.

Mechanical & Installation Focus

• Housing: steel with corrosion-protective coating
• Flange: aluminum, 58 mm blind hollow
• Shaft: 6.35 mm hollow, 28 mm depth
• Misalignment limits: static ±0.3 mm / ±0.5 mm, dynamic ±0.1 mm / ±0.2 mm

Primary mechanical constraint: blind hollow installation quality. Best practice: control shaft tolerance, insertion depth, and alignment stability together, not bore size alone. This matters even more on a small 1/4 inch shaft because the installation margin is narrower than on larger hollow-shaft versions. The recommendation is an engineering judgment supported by the listed misalignment limits and blind-hollow geometry.

Wiring & Bus Topology

• Connection: radial, 3 × M12 connectors
• Interface 1: M12 male, 4 pin, A-coded
• Interface 2: M12 female, 5 pin, B-coded
• Interface 3: M12 male, 5 pin, B-coded
• Signals: Power Supply, GND, Bus line A / B for bus in and bus out

Primary commissioning issue: bus topology errors. Check sequence: address → termination → bus continuity → power. This is the correct engineering check order for the published connector and signal arrangement.

Integration & Compatibility

• Designed for Profibus absolute encoder systems with configurable node and scaling functions
• Matches 58 mm blind hollow installations with 6.35 mm shaft
• Suitable for multi-turn feedback where battery-free retention is preferred
• Not suitable for incremental-only systems or non-Profibus architectures; this is a selection conclusion based on the listed interface and wiring structure.

Lead Time

Typical production lead time: 15 working days. Custom adaptation can be developed around shaft fit, connector layout, and bus commissioning requirements.

Key Technical Data