OMEGA Engineering, Inc. Integrated Stepper Drives/Motors STM

The STM is a drive + motor + control unit, fusing step motor, drive, and controller technologies into a single device, offering savings on space, wiring and cost over conventional motor and drive solutions. The "S" models offer control options such as step and direction, analog input, joystick control, and host commands using the Si Command Language (SCL). The "Q" models add the capability of standalone programmable operation using the "Q" text-based programming language. This language offers high-level features such as multi-tasking, conditional programming, math functions, register access, and much more. Both of the STM models offer RS232 and RS485 versions, as well as the option of a 1000-line encoder that is integrated into the motor housing. The encoder option provides stall detection and prevention; the controller senses rotor lag and reduces speed to avoid stalling. In addition, all models offer two different motor sizes: a 2-stack version that provides 125 oz-in of holding torque, and a 3-stack version with 210 oz-in of torque.