Servomotor with integrated controller CM3+-23S50A

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Overview
CM3+ is an integrated servo system combining motor, driver and controller functions with built-in periodic calculation processing. It executes conditional branch and arithmetic processing according to operating conditions and external inputs, allowing the motor to operate autonomously and reducing overall system cost and PLC load.

Simplification by autonomous distributed control
Instead of a central PLC controlling every device, CM3+ enables distributed autonomous control at the motor level. This reduces the host controller burden, simplifies system architecture and decreases wiring and integration costs.

Intelligent multitasking motor — branch processing during positioning
CM3+ supports two concurrent program types: Motion Bank (motion sequences such as positioning) and Logic Bank (overall sequence logic). Running these in parallel enables conditional branching and on-device arithmetic for more advanced, compact control solutions.

High precision, speed and torque with simple interface
High performance is achieved using simple commands over a serial interface (RS232C). No special tools or software are required. Multi-axis networks are supported via Daisy Chain cabling; up to 15 axes can be linked easily.

Supports multiple control interfaces
Operation data can be configured and executed from a host controller. Available interfaces include I/O, RS232C and Modbus (RTU) / RS485. EtherNet/IP communication was planned for release in 2022.

Higher usable torque compared to conventional servos
Where conventional servo control typically operates near rated torque (~30% of maximum for torque control), CM3+ can be controlled up to approximately 80% of maximum torque. This allows smaller motor sizing and lower-cost torque control systems. Example push torque values shown: 0.32 Nm and 1.05 Nm.

Technical specifications

• Product family / model: CM3+
• Type: Integrated servo system with built-in control IC (autonomous distributed servo)
• Autonomy: Motor can operate autonomously, reducing system cost and PLC load
• Control/programming: Two program types — Motion Bank (motion sequences) and Logic Bank (sequence logic) — can run concurrently to enable conditional branch processing and arithmetic operations
• Communication: Serial communication (RS232C); supports I/O, RS232C, Modbus (RTU) / RS485; EtherNet/IP planned (2022)
• Network topology: Daisy Chain multi-axis network, up to 15 axes
• Torque capability: Control up to ~80% of maximum torque (higher usable torque vs typical servo usage)
• Performance: Designed for high precision, speed and torque with simple commands
• Use cases: Simplification of host control, wiring reduction, cost reduction for compact/simple systems
• Illustrative push torque values: 0.32 Nm, 1.05 Nm