Omron CPM1A-40CDR-A-V1

Brand: Omron
Model: CPM1A-40CDR-A-V1

Inventory situation: Goods are available in stock.

Product features

The Omron CPM1A-40CDR-A-V1 is a dependable programmable logic controller (PLC) specifically intended for industrial automation applications. This tiny PLC, from Omron's CPM1A family, provides comprehensive control capabilities for a variety of production processes. With 24 digital inputs and 16 relay outputs, it allows you to link sensors, switches, and actuators in automated systems. Ideal for small to medium-sized machines, it has a wide AC power supply range of 85 to 264V, making it suitable for a variety of industrial applications.

The CPM1A-40CDR-A-V1 has a logic execution speed of 0.72 to 1.72 microseconds, ensuring that control operations are processed quickly and efficiently. The built-in encoder input (5 kHz) enables precise motion tracking in conveyor systems or packaging machines. The PLC also has a 2-kword program memory and a 1-kword data memory, allowing developers to create complicated programs in ladder diagram language. It may be expanded up to 100 I/O points with additional modules, making it scalable to meet rising automation requirements.

The CPM1A-40CDR-A-V1 includes an RS-232C connection interface for convenient integration with HMIs, PCs, and other PLCs. This function enables real-time data interchange and remote monitoring, which improves system efficiency. Its relay outputs are capable of high switching capacity (up to 2A per channel), making them ideal for controlling motors, solenoids, and other high-power devices. The compact size (197mm x 80mm x 75mm) and DIN rail mounting option save space in control cabinets, and the replaceable terminal blocks make installation and maintenance easier.

Specifications

I/O Points	24-point DC input + 16-point relay output
Response Time	ON delay ≤ 15 ms, OFF delay ≤ 15 ms
Power Type	AC 85–264 V (50/60 Hz)
User Program Capacity	2048 words (extendable via EEPROM)
Data Memory	1024 words (read/write) + 512 words (read-only)
Basic Instructions (e.g., LD)	1.72 μs per instruction
Application Instructions (e.g., MOV)	16.3 μs per instruction
Power Consumption	≤ 60 VA

Precautions

First, pay attention to the operational environment. The Omron CPM1A-40CDR-A-V1 must operate in temperatures ranging from 0°C to 55°C. Install it in a dry location away from intense sunlight, high vibrations, and corrosive gasses. Keep dust off the PLC, since it might cause overheating or electrical issues. This is consistent with the usual Omron PLC installation requirements for best performance.

Second, confirm that the power supply is properly connected. The CPM1A-40CDR-A-V1 requires an AC power supply of 85V to 264V. To avoid damaging the power cord, always verify the voltage before attaching it. Remember to completely turn off the power before wiring or performing maintenance; never touch live components, as this can result in electric shock. This step is crucial for ensuring the safety of the PLC power supply.

Third, use proper wiring procedures. The 24 DC input terminals and 16 relay output terminals must be linked correctly. Use the proper wire diameters and make sure all connections are tight. To avoid short circuits or malfunctions, use the terminal labels to separate the input and output wires. To avoid overloading, relay output wiring should not exceed a maximum current of 2A per output.

FAQ

Q: What are the basic I/O specifications of the Omron CPM1A-40CDR-A-V1?

A: The Omron CPM1A-40CDR-A-V1 is a 40-point CPU unit featuring 24 digital inputs and 16 relay outputs. It is designed for AC power supply operation at 100–240 VAC, 50/60 Hz, with an allowable voltage range of 85–264 VAC. The unit is compatible with both sinking and sourcing input configurations and provides a 24 VDC output for powering external sensors or small devices.

Q: What are the memory capacity and program storage specifications for the CPM1A-40CDR-A-V1?

A: The CPM1A-40CDR-A-V1 provides 2048 words of program memory capacity. Data memory includes 1024 words of read/write DM and 512 words of read-only DM. The CPU supports internal auxiliary relay capacity of 512 points, special auxiliary relays of 384 points, and hold relays comprising 320 points. Counter/timer capacity is 128 points.

Q: What is the instruction execution speed of the CPM1A-40CDR-A-V1?

A: The CPM1A-40CDR-A-V1 executes basic logic instructions (LD) in 1.72 μs per instruction, and application instructions (MOV, etc.) in 16.3 μs per instruction. Input interrupt response time is 0.3 ms or less, with 4 external interrupt points available on this 40-point CPU model. For reference, later Omron CP1E series executes LD instructions in 1.19 μs, while CP1H achieves as fast as 0.1 μs per LD instruction.

Q: What are the power supply requirements and power consumption ratings?

A: The CPM1A-40CDR-A-V1 operates on an AC power supply of 100–240 VAC, 50/60 Hz, with a permissible voltage fluctuation range of 85–264 VAC. Maximum power consumption is rated at 60 VA. Inrush current is rated at up to 60 A. Power interruption withstand time is a minimum of 10 ms. The unit provides a 24 VDC external output rated at 0.3 A (300 mA) for powering external devices such as sensors.

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