The METSO VALMET IOP351 is a relay output module commonly used in industrial automation systems. Here is the detailed information about it:
- Manufacturer: METSO VALMET, a well - known company in the field of industrial automation and process control.
 - Model Number: IOP351.
 - Product Type: Relay Output Module.
 - Series: Part of the METSO Automation Proxima series.
 
- Dimensions: Approximately 120 mm (length) × 80 mm (width) × 40 mm (height).
 - Weight: About 0.3 kg.
 - Enclosure Type: IP20, NEMA 1, which means it is protected against solid objects larger than 12.5 mm and is suitable for indoor use in non - hazardous environments.
 - Mounting: Designed for DIN - rail or panel mounting in industrial control cabinets.
 
- Power Supply: 24 VDC (some sources also mention a range of 18 - 30 VDC).
 - Relay Outputs: It has 8 programmable relay outputs.
 - Contact Type: SPDT (Single - Pole, Double - Throw).
 - Rated Current: 10 A/channel (some models may have a rated current of 5 A at 250 VAC/30 VDC).
 - Relay Type: Silver - plated copper alloy relays, which offer good electrical conductivity and durability.
 - Communication Interface: RS - 485, which is used for communication with other industrial control systems and devices.
 - Input Structure: The module's inputs are divided into two separate isolated groups, each containing eight channels and a voltage monitoring input.
 - Environmental Conditions:
- Working Temperature: - 40°C to 85°C.
 - Storage Temperature: - 55°C to 90°C.
 - Relative Humidity: 5% - 95% (non - condensing).
 
 - Standards Compliance: Complies with IEC 60947 - 5 - 1 and NEMA MG - 1 Part 21 standards.
 
- Function: The IOP351 serves as an interface between the control system and external devices. It receives control signals from the PLC or other control units and converts them into relay output signals to control the on/off state of external equipment such as motors, valves, and lights. Each relay output can be programmed independently, and the module also has LED indicators for relay status, which is convenient for monitoring and troubleshooting.
 - Applications: Widely used in various industrial fields, including oil and gas, power generation, chemical processing, and manufacturing. It is used for process control, equipment interlocking, and signal transmission in automation systems.
 
- High Reliability: The use of high - quality components and a robust design ensures stable operation in harsh industrial environments. The isolated input groups help to prevent electrical interference and improve the reliability of the system.
 - Flexible Configuration: With 8 programmable relay outputs, it can meet the needs of different control scenarios. The SPDT contact type provides more connection options for external devices.
 - Easy Integration: The RS - 485 communication interface makes it easy to integrate with other industrial control devices and systems, and it can be seamlessly connected to METSO VALMET's control systems through the backplane.