Applied Motion Products of Watsonville, CA have just released a new line of High Torque Integrated Stepper Motors with built-in CANopen communications. The STM24 Series is a Nema 24 frame hybrid step motor series with holding torque rated to 340 oz-in .
CANopen is a standardized communication protocol for use in distributed automation control systems. It is a popular fieldbus option for applications that require the transmission of time-critical data to and from the devices on the network.
The STM24 CANopen Integrated Motors adhere to CAN in Automation (CiA) specifications DS301 and DSP402. Profile Position, Profile Velocity, and Homing modes are fully supported at data rates up to 1 Mbps. Applied Motion also provides specific CANopen objects for executing stored Q programs* and accessing internal data registers in the products.
Each STM integrates a NEMA step motor, microstepping drive and controller into a single device, offering savings on space, wiring and cost over conventional motor and drive solutions.
The “S” version models accept step and direction, analog input, joystick control, and streaming host commands using the SCL language. “Q” version models add stand-alone programmable operation using the Q programming language. This versatile language includes high-level features such as complex motion, multi-tasking, conditional programming, math functions, register access, and more. Both S and Q models offer RS-232 or RS-485 communication.
An optional 4000 count encoder, integrated into the motor housing, provides stall detection and stall prevention. Applied Motion’s proprietary stall prevention algorithm monitors rotor lag and automatically reduces speed and acceleration to avoid motor stalls, allowing 100% torque utilization.
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*Stored Q programs in CANopen products can only be accessed via the CANopen network by request from the host controller. CANopen products cannot run Q programs stand-alone.