Servomotor with integrated controller CM3+-23L50A

hybrid stepperDC24 V

Overview
COOL MUSCLE 3+ (CM3+) is an integrated servo system combining driver and controller functions for compact, autonomous motor control. It performs periodic onboard calculations and supports conditional branching and arithmetic processing based on operating conditions and external inputs, enabling the motor to operate autonomously and reducing overall system cost.

Simplification by autonomous distributed control
CM3+ enables autonomous distributed control so the PLC does not need to centrally manage every device. This lowers host-controller load, simplifies system architecture, reduces wiring, and can eliminate external controllers in certain multi-axis setups.

Branch processing during positioning operation — intelligent multitasking motor
CM3+ runs two concurrent program types: a Motion Bank for motion/position sequences and a Logic Bank for sequencing, conditional branching, and arithmetic. This allows condition-based branching and onboard calculations for advanced motion logic without a central PLC intervention.

High precision, speed and torque via simple commands
Control is executed via simple serial commands (RS232C), removing the need for special software. Multiple axes can be networked by daisy-chain wiring; up to 15 axes are supported by linking motors in series.

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

Higher torque compared to conventional servo motors
Unlike typical servo torque control that often uses rated torque near 30% of maximum, CM3+ enables control up to approximately 80% of maximum torque, allowing downsizing of motors and lower-cost torque control designs.

Technical specifications

• Model: CM3+
• Product type: Integrated servo system with embedded driver and controller
• Autonomous operation: Onboard periodic calculation and conditional branching enable autonomous motor operation
• Program types: Motion Bank (motion/position sequences) and Logic Bank (sequence/logic/arithmetic), runnable concurrently
• Communication interfaces: I/O, RS232C (serial), Modbus (RTU) / RS485; EtherNet/IP planned (2022)
• Network topology: Daisy-chain multi-axis network, up to 15 axes
• Control approach: Autonomous distributed control to reduce PLC burden and wiring
• Torque capability: Control up to ~80% of maximum torque (vs typical servo use ~30% of max)
• Example push torque outputs: 0.32 Nm and 1.05 Nm