Panasonic AFPX-A21 Analog I/O Cassette

Technical Overview

2-point 12-bit analog input (0-5V/0-10V/0-20mA) and 1-point 12-bit analog output (0-10V/0-20mA) cassette with insulated channels and rapid conversion.

Key Features

2-point analog input with selectable ranges: 0 to 5 V, 0 to 10 V, or 0 to 20 mA.
1-point analog output with selectable ranges: 0 to 10 V or 0 to 20 mA.
12-bit resolution for both analog input and output channels.
Insulated channels to enhance noise immunity and signal integrity.
Fast 2 ms/2 channels analog input conversion speed.
Rapid 1 ms/1 channel analog output conversion speed.
Designed as an add-on cassette for Panasonic FP-X series programmable controllers.

Technical Specification Matrix

Parameter	Value
Analog Input Points	2-point
Analog Input Ranges	0 to 5 V / 0 to 10 V / 0 to 20 mA
Analog Input Resolution	12-bit
Analog Input Conversion Speed	2 ms / 2 channels
Analog Input Isolation	Insulated
Analog Output Points	1 point
Analog Output Ranges	0 to 10 V / 0 to 20 mA
Analog Output Resolution	12-bit
Analog Output Conversion Speed	1 ms / 1 channel
Analog Output Isolation	Insulated
Physical Weight (kg)	0
Dimensions L x W x H (cm)	0 x 0 x 0

Industrial Applications

1. Precision Temperature Control in Industrial Furnaces

In industrial furnace applications, maintaining exact temperature profiles is crucial for material quality and energy efficiency. The AFPX-A21's 2-point 12-bit analog input can precisely read temperature sensor data (e.g., 0-10V from a transducer), while the 1-point 12-bit analog output can drive proportional control valves or heating elements (e.g., 4-20mA to a PID controller), allowing for accurate and stable temperature regulation.

Problem Solved

Inaccurate temperature readings and unstable control loops leading to inconsistent product quality and wasted energy in heat treatment processes.

PID controltemperature sensoranalog signal processingfurnace automationclosed-loop control

2. Real-time Fluid Flow Monitoring and Regulation

For processes involving precise fluid dispensing or mixing, such as in chemical plants or pharmaceutical manufacturing, the AFPX-A21 provides essential analog I/O capabilities. Its 2-point analog input can acquire real-time data from multiple flow meters, and the 1-point analog output can command a proportional control valve, enabling a PLC to accurately monitor and adjust flow rates according to process requirements. The insulation ensures signal integrity in noisy industrial environments.

Problem Solved

Inaccurate fluid flow rates resulting in incorrect mixture ratios, material waste, or product quality deviations.

Flow meterproportional valve controlchemical processingfluid dynamicsinsulated I/O

3. Machine Tool Positional Feedback and Speed Control

In machine tool applications requiring fine positional control or variable speed drive integration, the AFPX-A21 is ideal. Its 2-point analog inputs can receive feedback from linear displacement sensors or potentiometers (e.g., 0-10V signals) to monitor axis positions, while the 1-point analog output can provide a setpoint signal (e.g., 0-20mA) to a variable frequency drive (VFD) for precise motor speed control. This enables the PLC to execute complex motion profiles with high accuracy.

Problem Solved

Lack of precision feedback mechanisms and control for motor speeds and positions in automated machinery, leading to reduced machining accuracy and efficiency.

Machine automationVFD controlpositional feedbacklinear displacement sensormotion control