Product Overview
The VALMET 421907-1B is a high-performance industrial process control module engineered exclusively for VALMET’s automation systems, delivering precise monitoring and control of critical process variables in pulp, paper, energy, and chemical industries. As a core component of VALMET’s process control ecosystem, the VALMET 421907-1B excels at integrating analog and digital I/O signals, enabling real-time data exchange between field devices (e.g., flow meters, temperature sensors) and VALMET DCS/PLC platforms—such as VALMET DNA or VALMET IQ. The VALMET 421907-1B stands out for its redundant design, which ensures uninterrupted operation even if a single component fails, a critical requirement for safety-critical processes like pulp cooking or power generation. Its compact, rack-mountable form factor optimizes space in control cabinets, while robust environmental tolerance (including resistance to temperature swings and electrical noise) guarantees long-term reliability in harsh industrial settings. With built-in diagnostic tools and compliance to global industrial standards, the VALMET 421907-1B minimizes maintenance costs and maximizes process uptime, making it a trusted choice for engineers focused on operational efficiency.
Hainan Jinlin Mechanical & Electrical is a distributor of industrial control products, specializing in a wide range of brands. We possess extensive industry knowledge and market insights. Adhering to the “Customer First, Forge Ahead” business philosophy, we provide high-quality customer service. We’re here for you, dedicated to meeting your needs!
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | VALMET 421907-1B |
| Manufacturer | VALMET |
| Product Type | Analog/Digital I/O Process Control Module |
| I/O Configuration | 8 x Analog Inputs (4–20 mA), 4 x Analog Outputs (4–20 mA), 8 x Digital Inputs (24V DC), 4 x Digital Outputs (24V DC) |
| Redundancy Support | 1+1 Hot-Swappable Redundancy (Automatic Failover) |
| Communication Protocol | VALMET Proprietary Bus (Compatible with VALMET DNA DCS), Modbus RTU (for third-party integration) |
| Operating Temperature | -10°C to +60°C (Non-condensing; Derate above 50°C) |
| Power Supply | 24V DC (±10% Tolerance; Reverse Polarity Protection) |
| Mounting Type | 19” Rack Mount (1U Height) |
| Certifications | IEC 61010-1 (Safety), IEC 61326-1 (EMC for Industrial Environments) |
Key Features and Benefits
Redundant Design for Uninterrupted Operation
The VALMET 421907-1B incorporates 1+1 hot-swappable redundancy, meaning a backup module runs in parallel with the primary unit and automatically takes over if the primary fails—with a failover time of <100 ms. This eliminates process downtime in safety-critical applications, such as pulp mill digesters (where temperature/pressure control lapses can ruin batches) or power plant boiler feedwater systems (where valve control failures risk equipment damage). Hot-swappable functionality also allows technicians to replace faulty modules without shutting down the entire system, further reducing maintenance-related downtime.
Versatile I/O Integration
With a flexible I/O configuration (8 analog inputs, 4 analog outputs, 8 digital inputs, 4 digital outputs), the VALMET 421907-1B acts as a central hub for connecting diverse field devices. Analog inputs accurately measure variables like flow rate (via 4–20 mA signals from flow meters) or temperature (via RTD/thermocouple transducers), while analog outputs control actuators (e.g., valve positioners) to adjust process parameters. Digital I/O handles discrete signals—such as limit switch status (inputs) or pump on/off commands (outputs)—making the module adaptable to mixed-signal environments (e.g., a paper machine’s wet end, where both analog pressure sensors and digital proximity switches are used).
Seamless VALMET Ecosystem Compatibility
As a native VALMET component, the VALMET 421907-1B integrates seamlessly with VALMET’s flagship automation platforms, including the VALMET DNA DCS and VALMET IQ process optimization software. This plug-and-play compatibility eliminates the need for custom drivers or complex programming, reducing setup time by up to 50% compared to third-party modules. The module also supports Modbus RTU for integration with non-VALMET devices (e.g., legacy PLCs or 第三方 sensors), ensuring flexibility for plants with mixed-vendor systems. Real-time data synchronization with VALMET IQ enables advanced analytics—such as predictive maintenance alerts or process efficiency reports—empowering operators to make data-driven decisions.
Robustness & Easy Diagnostics
Built to withstand industrial stressors, the VALMET 421907-1B features a rugged metal chassis that resists mechanical vibration (up to 5 g rms, 10–500 Hz) and electrical interference (compliant with IEC 61326-1 EMC standards), ensuring stable performance near high-voltage equipment or rotating machinery. The module’s built-in diagnostic tools monitor key parameters (e.g., input signal integrity, power supply voltage, module temperature) and transmit alerts to the DCS if anomalies are detected—allowing technicians to address issues (e.g., a faulty sensor wire) before they escalate into process failures. LED status indicators on the front panel provide at-a-glance visibility of module health, simplifying on-site troubleshooting.
Related Models
- VALMET 421907-1A – Previous generation of the VALMET 421907-1B with basic redundancy (no hot-swappable support), suitable for non-safety-critical applications.
- VALMET 421907-2B – Upgraded model of the VALMET 421907-1B with expanded I/O (16 analog inputs, 8 analog outputs) for large-scale processes (e.g., multi-line paper mills).
- VALMET 421908-1B – Digital-only variant of the VALMET 421907-1B (32 digital inputs, 16 digital outputs) for discrete control applications (e.g., conveyor system sequencing).
- VALMET 421907-1B-H – High-temperature version of the VALMET 421907-1B (operating range: -20°C to +70°C), optimized for cement kilns or incineration plants.
- VALMET 420001-1B – Power supply module specifically designed to pair with the VALMET 421907-1B for redundant power input.
- VALMET 421907-1B-PRO – Enhanced variant of the VALMET 421907-1B with Ethernet/IP communication (in addition to VALMET Bus) for IIoT integration.
- VALMET 421909-1B – Analog-only module complementary to the VALMET 421907-1B, with 24 analog inputs for high-precision measurement applications (e.g., laboratory-scale process testing).
Company & Service Highlights
Hainan Jinlin Mechanical and Electrical Equipment Co., Ltd., a distributor of industrial control products from various brands, specializes in selling industrial control products. Leveraging extensive industry knowledge and market insights, we adhere to the business philosophy of “Customer First, Striving for Progress” and prioritize customer service to provide customers with high-quality services. We are committed to serving your needs and are dedicated to meeting them!
As a trusted distributor of VALMET and other industry leaders (e.g., Bentley Nevada, Honeywell), we provide key components for the following areas:
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