YOKOGAWA CP451-51

Description

Technical Specifications:

• Product Type: Processor Module / Digital Temperature Controller

• Processor: 32-bit RISC processor at 400 MHz

• Memory: 128KB program memory, 128KB data memory

• I/O Capacity: Maximum 256 input points and 256 output points

• Input Types: Thermocouple (K, J, T, E), RTD (Pt100)

• Display Type: 4-digit LED

• Control Mode: PID, ON/OFF, Manual

• Output Types: Relay, SSR, Analog 4-20 mA

• Setpoint Range: -200°C to +1800°C (depending on sensor)

• Accuracy: ±0.3% FS

• Sampling Time: 0.5 seconds

• Power Supply: 100-240 VAC, 50/60 Hz

• Operating Temperature: 0°C to +55°C

• Mounting Type: Panel mount, 48 × 48 mm cutout

• Alarm Functions: High/low deviation, sensor break detection

• Dimensions: 48 × 48 × 120 mm (H × W × D)

• Weight: 0.35 kg

• Communication Interfaces: 1 × RS-232C, 1 × RS-422A/485, 2 × LAN, 2 communication slots (optional)

Functional Features:

• High Precision: PID control ensures stable and accurate temperature regulation

• Flexible Input Options: Compatible with a wide range of thermocouples and RTDs

• Versatile Output: Supports relay, SSR, and analog signals for diverse control needs

• User-Friendly Interface: Clear LED display and intuitive programming facilitate operation

• Safety Features: Programmable alarms and sensor break detection protect equipment and processes

• Compact Design: Standard 48 × 48 mm panel cutout allows easy integration into control panels

• High Reliability: Industrial-grade internal components and housing design provide high stability and reliability

• Strong Communication Capability: Supports multiple communication interfaces and protocols with high-speed communication capabilities

Performance Parameters:

• Control Algorithm: Advanced PID control ensuring stable and precise temperature control

• Response Speed: Fast response for accurate temperature regulation

• Sampling Frequency: 0.5 second sampling time

• Measurement Accuracy: ±0.3% FS

• I/O Scalability: Supports up to 256 input and 256 output points

Material Composition:
Industrial-grade components and housing design providing high stability and reliability. Strong anti-interference capability and self-protection mechanisms effectively deal with various interference and abnormal situations.

Structural Characteristics:

• Form Factor: Compact panel-mount design with 48 × 48 mm cutout

• Display: 4-digit LED display for real-time monitoring

• Mounting: Snap-on mounting onto horizontal dual-rail for easy installation and replacement within FCU rack

• Communication Ports: Multiple interfaces accessible for flexible connectivity

Working Principle:
The CP451-51 functions as a high-performance processor module executing control algorithms and data processing tasks. The 32-bit RISC processor at 400 MHz runs advanced PID control algorithms for stable and precise temperature regulation. The module samples input from thermocouples or RTDs at 0.5-second intervals, processes the data through PID, ON/OFF, or manual control modes, and generates output signals via relay, SSR, or analog 4-20 mA to drive heaters, coolers, or actuators. Programmable alarms and sensor break detection enhance operational safety.

Advantages and Strengths:

• High-precision PID control for stable temperature regulation

• Compatible with wide range of thermocouples and RTDs

• Multiple output options for diverse control needs

• User-friendly LED display and intuitive programming

• Programmable alarms and sensor break detection

• Standard 48 × 48 mm panel cutout for easy integration

• Flexible configuration with multiple expansion module options

• Strong anti-interference capability and self-protection mechanisms

Applicable Industries:

• Industrial automation control systems

• Process control

• Motion control

• Machine vision

• Chemical processing

• Manufacturing

• Laboratory environments

• Power system monitoring

• Intelligent building control systems

• Energy sector

Model Series:
Part of Yokogawa’s CENTUM VP DCS product family. Compatible with AFV300 and AFV400 systems.

Installation Requirements:

• Mounting: Panel mount with 48 × 48 mm cutout; snap-on mounting onto horizontal dual-rail within FCU rack

• Power Supply: AC 100-240V, 50/60Hz

• Environmental: Industrial-grade operating temperature range 0°C to 55°C

• Wiring: Follow product manual instructions for proper connection and configuration

Usage Precautions:

• Regular Inspection: Regularly inspect and maintain modules to maintain normal operating status

• Sensor Selection: Choose appropriate sensor type (thermocouple or RTD) based on application requirements

• Alarm Configuration: Program high/low deviation and sensor break alarms as needed

• Communication Setup: Configure communication interfaces (RS-232C, RS-422A/485, LAN) for system integration