integrated and controled - a CLosed-Loop-Drive by outstanding properties.

Controlled, integrated servo- stepping motors are an effective and inexpensive solution for applications where is required the precision of a servo motor for the low price of a stepper motor

With a superior closed loop control and a cost-effective design, the stepIM provides an efficient and economical solution for applications that require the performance of a servo at the price level of a stepper. The stepIM significantly enhances the performance of the stepper motors, when compared to conventional open loop control. The integrated electronics control the stepper motor as a two phase BLDC motor, implementing position servo loop, velocity loop, DQ current control, as well as additional algorithms. Closed loop commutation, by means of an absolute singe-turn encoder, ensures optimal torque utilization at any speed.

Commutation control for high dynamic performance
The series stepIM includes a much higher efficiency than stepper motors with conventional control. The power amplifier controls the stepping motor as a two-phase, brushless DC motor with position servo control, speed control, and 4Q-current control and with commutation control and additional algorithms. The maximum torque can be used at any speed, whereby the motor has an optimum efficiency.The position information is provided by a single-turn absolute encoder.

Higher efficiency
With a refresh rate of 16 kHz of the encoded signal the stepper motor MO-stepIM controls the generated magnetic flux quite accurately based on the actual load, which is always ensured a highly accurate position control and the maximum efficiency of the machine. Furthermore, thanks to the commutation control resonance vibrations at low speeds and step losses are prevented with high torque.

Application examples
• Tool positionig in woodworking, textile and packaging machinery
• Thread positioning in textile machines
• Mixing machines for the food industry and laboratory technology
• Coordinated control of gantry robots
• Actuators on the robot gripper arms
• Milling machines
• Belt drives with loads with low stiffness