OCM-DPC1B-0016-W12W-HFZ Profibus Single-Turn Encoder, 12 mm Solid Shaft

We developed a custom solution for model OCM-DPC1B-0016-W12W-HFZ. Selected when single-turn absolute feedback is required via Profibus in Zone 1 & 21 mining environments, using a 78 mm ATEX through-hole flange with 12 mm solid shaft. Typical production lead time: 15 working days. The referenced configuration uses Profibus DPV0 / DPV1 / DPV2 Class 2, optical sensing, 16-bit single-turn resolution, 10–30 VDC supply, CE + ATEX Zone 1 & 21 mining approval, and a stainless-steel construction package.

Key Specifications

• Interface: Profibus DPV0 / DPV1 / DPV2 Class 2
• Resolution: 16-bit single-turn
• Code: Binary
• Supply: 10–30 VDC
• Protection: IP66/IP67
• Structure: 78 mm ATEX through-hole flange, 12 mm solid shaft, 20 mm shaft length
• Housing: stainless steel V4A / 316L
• Speed: up to 3000 rpm
• Approval: CE + ATEX Zone 1 & 21 (Mining)

Decision Snapshot

• Best for: hazardous-area Profibus single-turn positioning in mining applications
• Key fit: 12 mm solid shaft, 78 mm ATEX flange, stainless 316L construction
• Avoid if: the system only needs incremental feedback or does not require Profibus / mining hazardous-area compliance; that follows from the listed bus interface, approval, and explosion-proof mechanical package.

Custom Solution Photos

Encoder structure reference: 78 mm ATEX through-hole flange, 12 mm solid shaft, stainless housing, radial sealed connection 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 and bus continuity before startup, especially on explosion-protected installations where rework is slower and more restrictive. The recommendation is based on the listed address/termination hardware and Profibus connection method.

Mechanical & Installation Focus

• Housing: stainless steel V4A / 316L
• Flange: 78 mm ATEX through-hole, stainless steel V4A / 316L
• Shaft: 12 mm solid, single-flat, 20 mm length
• Load capability: axial 50 N, radial 50 N
• Speed capability: 3000 rpm

Primary mechanical value: stainless construction with mining-grade Zone 1 & 21 approval. Primary mechanical constraint: coupling quality still matters, because shaft load allowance is finite and the encoder package is significantly heavier than standard non-ATEX versions. This makes installation support and alignment more important than on lighter standard housings. The weight and load values support that engineering judgment.

Wiring & Bus Topology

• Connection: radial, 2 sealed outlets
• Signals: Bus line A / B, power supply, GND for bus in and bus out

Primary commissioning issue: bus-side setup, not sensing stability. Check sequence: address → termination → bus continuity → power. That sequence follows directly from the published connection method and Profibus line assignment.

Integration & Compatibility

• Designed for Profibus absolute encoder systems in Zone 1 & 21 mining environments
• Matches 78 mm ATEX through-hole installations with 12 mm solid shaft
• Suitable for single-turn positioning where stainless construction and hazardous-area approval are both required
• Not suitable for incremental-only systems or non-Profibus architectures; this is a selection conclusion based on the listed interface, approval, and wiring structure.

Lead Time

Typical production lead time: 15 working days. Custom adaptation can be developed around shaft fit, sealed connection layout, hazardous-area installation, and bus commissioning requirements.

Key Technical Data