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Omron CPM1A-20CDT1-D-V1 CPM1A Series Micro PLC CPU Module

Omron CPM1A-20CDT1-D-V1 CPM1A Series Micro PLC CPU Module

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  • Manufacturer: Omron

  • Product No.: CPM1A-20CDT1-D-V1

  • Country of origin:Japan

  • Product Type: PLC CPU Modules

  • Payment: T/T, Western Union

  • Weight: 500g

  • Dimensions: 90 mm x 86 mm x 50 mm

  • Shipping port: Xiamen

  • Warranty: 12 months

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Description

Designed for compact industrial automation architectures, the Omron CPM1A-20CDT1-D-V1 acts as a self-contained micro PLC controller, integrating both digital processing and specialized I/O processing within a space-saving footprint. This micro controller is engineered for applications requiring reliable localized control with low-latency signal response. Featuring a dedicated transistor source output topology, the device seamlessly integrates with modern safety relays, valves, and industrial actuators utilizing PNP logic interfaces.

Key Features

  • Fixed I/O Configuration: Equipped with 12 integrated digital inputs (24 VDC) and 8 PNP transistor (source) outputs.
  • Dedicated Processing Unit: Built-in 2 kWords program memory and 1 kWord data memory to handle moderate control logic sequences.
  • High-Speed Signal Handling: Features 1 high-speed encoder input (5 kHz) for feedback tracking and 1 pulse output (2 kHz) for basic step-and-direction motor positioning.
  • Optimized Cycle Performance: Delivers rapid logic execution speeds ranging from 0.72 microseconds to 1.72 microseconds.
  • Industrial Power Design: Operates on a standard 24 VDC control power loop with a wide acceptable range of 20.4 to 26.4 VDC.

Applications

  • Custom packaging machinery and automated wrapping stations.
  • Material handling conveyor systems and line diversion gates.
  • Dedicated pump control panels and localized liquid distribution systems.
  • Small-scale tool indexing mechanisms and pneumatic actuator arrays.

Technical Specifications

Parameter Specification Value
Manufacturer Omron
Model Identifier CPM1A-20CDT1-D-V1
Product Series CPM1A
Supply Voltage 24 VDC (Acceptable range: 20.4 to 26.4 VDC)
Input Points 12 digital inputs
Output Points 8 digital outputs
Output Type Transistor (Source / PNP type)
Program Capacity 2 kWords
Data Memory Capacity 1 kWords
Instruction Execution Speed 0.72 microsecond to 1.72 microsecond
Expansion Capabilities Not supported (Fixed local I/O block only)
High-Speed Functions 1 Encoder input (5 kHz max), 1 Pulse output (2 kHz max)
Dimensions (H x W x D) 90 mm x 86 mm x 50 mm
Shipping Weight (Calculated) 0.45 kg (Including unit and standard protective packaging)

Connections and Interfaces

Terminal Group Terminal Designation Function Assignment
Power Supply Terminals 24VDC (+) Positive 24 VDC Power Input
0V (-) Negative Power Common / Ground
Input Terminals 00000 Digital Input 0 / High-Speed Counter Input (Phase A / Pulse)
00001 to 00011 Digital Inputs 1 through 11
COM Input Common Terminal (Sinking/Sourcing connection)
Output Terminals 01000 Digital Output 0 / Pulse Output (Positioning Control)
01001 to 01007 Digital Outputs 1 through 7
V(+) / OUT COM Output Sourcing Positive Power Common (PNP)

Empirical Engineering Insights

Alternative Models & Compatibility

Note the vital hardware distinction between "T" (sink output) and "T1" (source output) models. The CPM1A-20CDT1-D-V1 is the source-type variant. Replacing this controller with a sink-type CPM1A-20CDT-D-V1 will invert your signal logic, preventing connected external PNP valves and indicator banks from responding and potentially introducing a short-circuit pathway if wired incorrectly.

Application Pitfalls & Engineering Notes

The 20-point CPM1A CPU does not feature expansion connectors. Unlike the 30-point and 40-point options within the CPM1A line, this model represents a fixed hardware ceiling. Ensure that the total field instrument requirements do not exceed 12 inputs and 8 outputs. If system expansion is planned for future phases, specify a larger controller size initially.

Commissioning & Wiring Tips

When utilizing the integrated high-speed counter (Input 00000) for encoder monitoring, verify that the signal run uses high-grade shielded twisted-pair cabling. Route this cable run away from high-current motor leads or VFD cabling. High-frequency inductive coupling on the 5 kHz counter line can lead to positioning drift and incorrect cycle count execution.

Installation Guidelines

CRITICAL WARNING: SAFETY AND PROTECTION Ensure all main AC/DC supply circuits feeding the enclosure are completely de-energized and locked out prior to terminal wiring or mounting operations. Running logic wiring or handling CPU terminal blocks with applied control power can permanently damage the internal logic gate-arrays and transistor output channels.
1

Mount the micro PLC onto a standard 35mm DIN rail inside a protective industrial enclosure with at least NEMA 12 / IP54 protection to prevent particulate contamination.

2

Connect a reliable 24 VDC power source to the power supply terminals. Verify that the voltage is stable and within the safe 20.4 to 26.4 VDC operating window.

3

Wire field inputs to the upper terminal strip, applying a shared common line to the COM point based on sinking or sourcing configuration.

4

Connect the transistor source (PNP) outputs to target devices on the lower terminal strip, ensuring external freewheeling diodes are installed across any inductive relay coils to prevent voltage transients.

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Can I expand the I/O capacity of the CPM1A-20CDT1-D-V1?

No, the 20-point CPM1A CPU module does not feature an expansion bus connector. If additional I/O is required, upgrade to a CPM1A-30CDT1-D-V1 or CPM1A-40CDT1-D-V1 model.

What is the difference between CPM1A-20CDT-D-V1 and CPM1A-20CDT1-D-V1?

The CPM1A-20CDT-D-V1 uses NPN transistor (sink) outputs, whereas the CPM1A-20CDT1-D-V1 features PNP transistor (source) outputs. Ensure matches with field wiring logic.

Does this controller support analog scaling features?

This unit is a digital-only micro PLC. Because it does not support expansion modules, analog inputs or outputs cannot be added. A modular platform like the CP1H or CP1L is required for analog control.

What programming software is compatible with this model?

The CPM1A-20CDT1-D-V1 is programmed using Omron's CX-Programmer software, which is part of the CX-One automation software suite, connected via a dedicated peripheral port.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Japan

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