METSO A413152: 8‑Channel Digital Input Module (BIU‑8)
The METSO A413152 is a binary input module (BIU‑8) designed for seamless integration into Metso Damatic XD and Valmet DNA automation platforms. It provides eight optically isolated 24V DC input channels for monitoring limit switches, pushbuttons, proximity sensors, relay contacts, and other digital field devices. Each channel features individual status indication, common‑side or sinking/sourcing field wiring compatibility, and comprehensive protection against surge, reverse polarity, and transient events. With a wide operating temperature range (-20°C to +60°C), conformal‑coated PCB for humidity and chemical resistance, and a compact DIN‑rail mountable housing, the A413152 delivers long‑term reliability in pulp & paper, power generation, chemical, mining, and water treatment applications. Its plug‑gable terminal blocks and hot‑swap capability in supported chassis minimize process downtime during maintenance.
Platform Compatibility
The A413152 is a direct I/O module for Metso Damatic XD and Valmet DNA systems. It is typically installed in distributed I/O racks or remote I/O enclosures, communicating with the controller via the system backplane. The module is also available as an individual field‑mount unit with IP65 enclosure for extreme environments.
Key Features and Functional Capabilities
8 High‑Speed Digital Inputs: Eight independent channels, each accepting 24V DC nominal signals (IEC 61131‑2 type 1/2 compliant). Sampling rate ≤1 ms per channel, suitable for fast logic and interlocking applications.
Optical Isolation & Noise Immunity: Channel‑to‑channel and channel‑to‑backplane isolation ≥1500V AC (1 minute). Built‑in input filters (0.5 ms / 3 ms selectable) suppress contact bounce and electrical fast transients (EFT).
Flexible Field Wiring: Compatible with both sinking (NPN) and sourcing (PNP) sensor outputs. Each channel includes a common terminal for group wiring, simplifying cabinet cabling.
Per‑Channel LED Indication: Green LED illuminates when input is active. Red LED indicates channel fault (wire break / out‑of‑range for configurable channels).
Comprehensive Protection: Reverse polarity protection on field supply, transient overvoltage suppression (35V DC clamp), and continuous short‑circuit protection.
Hot‑Swap Capability (Rack Version): Module can be inserted or removed while the backplane is powered without affecting adjacent I/O modules.
Conformal Coating: Standard IPC‑CC‑830B conformal coating protects against humidity, condensation, and airborne chemicals (optional for field‑mount variant).
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Binary Input Module (BIU‑8) |
| Part Number | A413152 (variants: A413152‑01, A413152‑02, A413152‑IP65) |
| Input Channels | 8 channels, common‑group isolated |
| Input Voltage (Rated) | 24V DC ±20% (19.2 – 30V DC) |
| Input Current | Typ. 6 mA at 24V DC (IEC 61131‑2 type 1/2) |
| ON‑State Threshold | ≥15V DC (≥5 mA) |
| OFF‑State Threshold | ≤5V DC (≤1 mA) |
| Input Delay | 0.5 ms / 3 ms (software selectable) |
| Isolation | 1500V AC channel‑to‑backplane; 500V AC channel‑to‑channel (continuous) |
| Field Supply Voltage | 24V DC ±20% (sourced externally or via backplane) |
| Field Supply Current | Max. 100 mA (total for all channels) – current limiting provided |
| Diagnostics | Per‑channel LED: green (input ON), red (wire break / sensor fault). Module status LED: POWER, RUN, FAULT. |
| Operating Temperature | -20°C to +60°C (standard), -30°C to +70°C (IP65 extended variant) |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% – 95% non‑condensing (IEC 60068‑2‑30) |
| Vibration / Shock | IEC 60068‑2‑6 (10 – 500 Hz, 5g) / IEC 60068‑2‑27 (30g, 11ms) |
| EMC Immunity | IEC 61000‑6‑2 (industrial environment), EN 61000‑4‑2/3/4/5/6 |
| Protection Rating | IP20 (rack version), IP65 (field‑mount variant) |
| Mounting | 35 mm DIN rail (EN 60715) or direct chassis mount (IP65) |
| Connectors | Removable screw‑terminal blocks (0.2 – 2.5 mm²), spring‑clamp optional |
| Dimensions (W×H×D) | 100 × 60 × 30 mm (rack module) / 150 × 120 × 50 mm (IP65) |
| Weight | Approx. 0.45 kg (rack) / 0.85 kg (IP65) |
| Certifications | CE, UL 61010‑1, UL 61010‑2‑201, CSA C22.2, ATEX/IECEx (optional) |
| MTBF | >1,200,000 hours at 40°C (Telcordia SR‑332) |
Industrial Applications and System Integration
The METSO A413152 is a foundational component for digital field signal acquisition in continuous and batch process industries:
Pulp & Paper: Monitoring limit switches on chipper conveyors, refiner plate gap sensors, broke conveyor position, and emergency pull‑cords.
Power Generation: Reading valve limit feedback, breaker auxiliary contacts, turbine lube oil low‑pressure switches, and generator hydrogen detector alarms.
Chemical & Petrochemical: Interfacing with pushbutton stations, flow switch status, tank high‑high level switches, and solenoid feedback.
Mining & Minerals: Conveyor belt rip detection, crusher bearing temperature switch inputs, pump seal water flow confirmation.
Water & Wastewater: Pump run/stop status, filter backwash initiation pushbuttons, tank level switch alarms.
OEM Machine Control: Integrated into Metso DNA compact controllers for packaging lines, material handling, and specialized machinery.
When paired with the A413150 binary output module, the A413152 forms a complete digital control solution for machine and process applications requiring reliable, galvanically isolated field interface.
Operational Benefits and Lifecycle Value
Reduced Downtime: Per‑channel diagnostics immediately identify faulty sensors or wiring. The hot‑swap capability allows module replacement without shutting down the I/O rack.
Simplified Engineering: Pre‑defined I/O mapping and faceplate graphics in Valmet DNA Workbench reduce configuration effort. The module is fully characterized in the system database.
Lower Spare Parts Inventory: One A413152 covers 8 inputs, eliminating the need for multiple single‑channel isolators or relay interfaces. Its broad application range minimizes unique part numbers.
Enhanced Safety: Reliable isolation and surge protection prevent ground loops and protect expensive controller electronics. Certified for use in SIL‑capable loops (when configured appropriately).
Long‑Term Support: As part of Valmet’s installed base commitment, the A413152 is guaranteed to be available and supported for the life of Damatic XD and DNA systems – often exceeding 20 years.
