Omron CPM1A-40CDT1-D-V1 Compact Programmable Controller for Small-Scale Automation

Product Overview

The Omron CPM1A-40CDT1-D-V1 is a compact programmable logic controller from the CPM1A series, designed for small-scale automation and machine control applications. This CPU unit integrates 40 I/O points in a single compact housing, providing 24 digital inputs and 16 transistor outputs, and operates on a 24 V DC power supply. The CPM1A series is known for its cost-effectiveness, ease of programming, and reliability in demanding industrial environments. The controller is suitable for use in packaging machinery, small conveyor systems, assembly stations, and other applications requiring moderate I/O count. The CPM1A-40CDT1-D-V1 is DIN rail mountable, facilitating easy installation in control cabinets.

Key Features of CPM1A-40CDT1-D-V1

The controller features 24 digital inputs rated at 24 V DC, compatible with proximity sensors, limit switches, pushbuttons, and other standard 24 V DC field devices. It includes 16 transistor outputs (sinking, PNP configuration) with an output current capacity of 0.3 A per point, suitable for controlling small solenoids, relays, and indicator lights. The transistor outputs provide high-speed switching capability, enabling pulse output functions for simple positioning tasks. The unit includes an RS-232C port for programming and communication with HMIs or other devices.

The CPM1A-40CDT1-D-V1 supports expansion I/O modules, allowing the system to be scaled up to meet application requirements. The controller offers high-speed counters (up to 100 kHz) and pulse outputs for basic motion control applications. The program memory capacity is 10K steps, sufficient for small to medium control programs. The unit includes a real-time clock for time-based functions and event logging. Diagnostic LEDs provide visual indication of power, run, and error status, simplifying troubleshooting. The CPM1A-40CDT1-D-V1 operates in temperatures from 0 to 55°C and is certified for CE and UL standards. The compact design, with a weight of only 0.14 kg, allows placement in space-constrained enclosures.

Technical Specifications

• Manufacturer: Omron Corporation

• Part Number: CPM1A-40CDT1-D-V1

• Series: CPM1A

• Product Type: Programmable Logic Controller

• Power Supply: 24 V DC (20.4-28.8 V)

• Number of Inputs: 24 (24 V DC)

• Number of Outputs: 16 (transistor, sinking, PNP)

• Output Current: 0.3 A per point

• Program Memory: 10K steps

• High-Speed Counters: 100 kHz, 4 axes

• Pulse Outputs: 100 kHz, 2 axes

• Communication Port: RS-232C (programming)

• Expansion Modules: Up to 2

• Operating Temperature: 0 to +55 °C

• Degree of Protection: IP20

• Mounting: DIN rail

• Weight: 0.14 kg

• Certifications: CE, UL

Functional Description

The CPM1A-40CDT1-D-V1 executes the user program stored in flash memory using a cyclic scan. The controller reads input status from the 24 inputs, executes the program, updates outputs, and handles communication. High-speed counters operate independently of the scan cycle, reading pulses from encoders or high-speed sensors. Pulse outputs can generate up to 100 kHz signals for controlling stepper drives or small DC motors. The RS-232C port allows connection to a programming computer or HMI for monitoring and control. The transistor outputs provide fast response times for high-speed control applications.

Applications

The CPM1A-40CDT1-D-V1 is used in small-scale automation applications such as small packaging machines, conveyor control, batch mixing equipment, testing machines, and industrial oven control. The transistor outputs make it suitable for applications requiring fast switching.