The Omron CPM2A-60CDR-A, also cataloged as the CPM2A-60CDR-A Programmable Controller, operates as a dedicated hardware component for discrete industrial sequence processing and electromechanical relay load switching within CPM2A Series field platforms. Operating across an integrated AC utility supply, the central unit monitors 36 discrete 24 VDC input channels and actuates 24 relay output contacts, running real-time ladder execution and decoding high-frequency encoder pulse feedback.

Technical Identifier Matrix

Hardware Specifications

I/O Density Scaling and Backplane Bus Velocity

The Omron CPM2A-60CDR-A features an internal processor engine optimized for high-speed instruction decoding, achieving deterministic basic instruction execution times between 0.26 us and 0.64 us. High backplane bus velocity ensures synchronous transfer between physical terminal states and internal system memory tables without scan cycle latency. To extend system capacity, I/O density scaling allows up to 3 CPM1A expansion modules to connect via the right-side expansion bus header, expanding total field I/O count without degrading the acquisition sampling rate of the 20 kHz high-speed encoder input channel.

Package Contents & Ordering Information

• 1x Omron CPM2A-60CDR-A CPU Unit
• 1x Removable Screw Terminal Cover Assembly
• 1x Hardware Installation Datasheet

Field Installation Guidelines

• Mechanical Installation: Secure horizontally to a standard 35 mm DIN rail or surface-mount to an enclosure backpanel using M4 screws. Maintain a minimum vertical clearance of 50 mm above and below the housing for proper heat dissipation.
• AC Utility Connections: Wire line power (85 to 264 VAC) directly to terminals L1 and L2/N. Ensure high-voltage AC conductors are physically separated from low-voltage DC input and signal cabling.
• Relay Output Wiring: Connect load circuits to individual relay output terminals. Install reverse-biased flywheel diodes across DC inductive loads and RC arc suppressors across AC inductive loads to mitigate voltage spikes and extend contact life.
• Grounding Requirements: Wire the functional earth ground terminal to the panel main grounding bus using copper conductor with a minimum cross-sectional area of 2.0 mm sq.
• Signal Shielding: Ground high-speed encoder input cabling using Shielded Twisted Pair (STP) wire, terminating the 360-deg braid shield clamp directly to panel earth.

Frequently Asked Questions

• Q: What line voltage range does the CPM2A-60CDR-A power supply support?

  A: The integrated AC power unit operates across an operational input range of 85 to 264 VAC at 50/60 Hz.

• Q: What are the maximum load ratings for the relay output channels?

  A: Each electromechanical relay output point is rated for a maximum current of 2 A at 250 VAC or 24 VDC.

• Q: How many built-in input and output channels are available on this base unit?

  A: The CPU chassis includes 60 integrated discrete I/O points formatted as 36 inputs (24 VDC) and 24 relay outputs.

• Q: What instruction execution speed does the internal CPU execute?

  A: Basic ladder logic execution speed ranges between 0.26 us and 0.64 us per instruction block.

• Q: What encoder feedback interface is integrated into the controller?

  A: The module features 1 built-in high-speed counter input channel supporting up to 20 kHz single-phase counting.

• Q: How many local expansion units can be added to the controller chassis?

  A: Up to 3 CPM1A series expansion I/O or specialized function modules can be attached via the side expansion port.

• Q: What are the exact physical dimensions of the CPU module housing?

  A: The physical dimensions format strictly to 19.5 cm width by 9.0 cm height by 9.0 cm depth.

• Q: What memory allocation is available for application logic and register data?

  A: Integrated memory holds up to 4 kWords of user application code and 2 kWords of dedicated data memory.