Valmet A413171 DNA DCS System Terminal Interface Unit Board
A413171 is a Valmet DNA DCS system terminal interface unit board, belonging to the TIU series signal conversion module. A413171 serves as a signal relay interface between on-site instruments, sensors, and DCS I/O cards, responsible for on-site signal isolation, filtering, signal conditioning, and line protection. It safely forwards on-site signals to the I/O modules in the rack, while collecting information on line short circuits and disconnections and uploading system alarms. A413171 is mainly used for spare parts replacement and on-site signal circuit maintenance of old DNA control systems in the paper and pulp industries.
Parameter Specifications
| Item | Specifications |
|---|---|
| Product Type | Terminal Interface Unit Board |
| Part Number | A413171 |
| Applicable System | Valmet DNA DCS System |
| Signal Type | Analog & discrete signal interface |
| Field Signal Range | 4~20mA, 24VDC digital signal |
| Channel Quantity | 16 channels |
| Isolation Mode | Optoelectronic isolation between field and system side |
| Isolation Voltage | 1500VAC |
| Power Supply | 24VDC |
| Max Power Consumption | 7W |
| Working Current | Max 300mA |
| Backplane Interface | DNA system I/O backplane bus |
| Diagnostic Function | Line break, short circuit, power fault detection |
| Operating Temperature | -20℃ ~ +60℃ |
| Storage Temperature | -30℃ ~ +85℃ |
| Relative Humidity | 5%~95% RH, non-condensing |
| Mounting Method | Rack slot mounting |
| Protection Class | IP20 |
| EMC Compliance | CE Class B |
| PCB Coating | Conformal coating for harsh environment |
| Dimension | Standard DNA module size |
| Origin | Finland |
Valmet A413171 DNA DCS System Terminal Interface Unit Board
Brand Introduction：
Valmet is headquartered in Finland and its automation business was formerly under Metso. In 2013, Metso’s automation business was merged into Valmet and it is a leading supplier of process industrial equipment and automation solutions for the global pulp and paper, energy, biomass, mining, and building materials industries. Its main products include complete production lines, DCS automation systems, field instruments, valves, analytical instruments, and full lifecycle spare parts and maintenance services.
Core automation products:
Valmet DNA Distributed Control System (DCS) is the main process control system of Valmet, including the old IOP series I/O and the new generation ACN series I/O hardware (D201435L CXW controller D201134L AI8C、D201136L DI16C、D201126L DI8P、D201129L DO8P、D201436L DO16C Etc.)
- Hardware: ACN rack, redundant controller module, analog input/output, digital input/output I/O card, bus communication module; Support module hot plugging, channel level fault diagnosis, wide temperature industrial working conditions, support 1:1 controller redundancy, ensuring uninterrupted continuous production.
- Software: Process control software, human-machine interface HMI, historical trends, alarm management, advanced process control APC, equipment status monitoring, asset operation and maintenance management software.
- New generation platform: DNAe , web architecture DCS, strengthened network security, suitable for key process devices such as power plants and ships.
Product features
- 16 channel integrated signal conversion, compatible with analog 4-20mA and 24V digital signals, suitable for on-site transmitters, valve limit devices, and switch instruments.
- Optoelectronic isolation design, achieving electrical isolation between on-site circuits and DCS system backboards, effectively suppressing on-site surges and electromagnetic interference, and protecting core I/O cards.
- Built in line fault diagnosis, real-time detection of wire breakage and short circuit faults, uploading fault information to the DCS system for easy operation and maintenance to quickly locate on-site circuit problems.
- The board is equipped with multiple sets of LED status indicator lights, which intuitively display the module’s power supply, communication, channel signals, and fault status, making on-site troubleshooting convenient.
- Three proof coating circuit board, resistant to moisture, dust, and vibration, suitable for harsh working conditions such as high temperature and high humidity in paper workshops.
- Standard DNA rack slot installation, supports online insertion and maintenance, and reduces system downtime when replacing spare parts.
- Native adaptation to Valmet DNA system backplate, can be directly used with IOP series I/O modules, with strong compatibility.
- Integrated signal filtering circuit to filter out high-frequency noise on site and improve the stability of process signal acquisition.
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