Series Features
- StepSERVO™ technology featuring space vector current control
- Peak torque for higher acceleration, faster machine cycles and greater productivity
- Energy efficient, cool running
- NEMA 11 frame size for space-limited applications
- RS-485 port for programming and communications
- Stand-alone operation with stored Q programming
- Modbus RTU option for easy PLC/HMI connection
- Built-in 4,096 count/rev encoder for closed-loop control
Products in the Series
* Closeout priced products are highlighted in green.
Series Details
What is StepSERVO™ closed loop stepper technology?
StepSERVO™ closed loop stepper technology starts with a traditional open loop step motor. A high resolution encoder is added and the system is controlled as a servo system with space vector PID current control. The result is a motor that has more torque and better acceleration than the traditional step motors system, while running cooler and quieter. Closed loop performance improves overall system accuracy because the motor does not stall. If the torque demand is greater than the torque the motor can produce, the controller produces a position error to alert the machine controller or operator. This is a benefit over open loop systems where the motor would stall and the controller may be unaware. For more information on the benefits of StepSERVO™ closed loop technology download our white paper.
What does NEMA frame size 11 mean?
NEMA frame size 11 refers to the dimensions of the motor’s front mounting face including the shaft diameter, pilot diameter, bolt hole circle and bolt hole diameter. The “11” comes from the square shape of the motor body, which when viewed from the front mounting face is 1.1 × 1.1 inches (28 × 28 mm) square.
How can it be so small?
One of the keys to making such a small integrated motor is to use the latest advances in magnetic encoders. The kind of magnetic encoder used in the TSM11 is much smaller than an optical encoder of the same resolution. This means that the housing for the encoder and drive electronics on the back of the motor can also be much smaller. The magnetic encoder used in the TSM11 is an incremental encoder with 1,024 lines (4,096 counts quadrature).
Single connector vs. Three connectors
The standard TSM11 integrated motors have a single connector at the back of the motor for power, I/O, and RS-485/Modbus communications. The TSM11-H01 motors have three separate connectors – one connector for power and I/O, one for RS-485 IN, and one for RS-485 OUT. The three connector arrangement facilitates easier connections for daisy-chained RS-485 and Modbus RTU networks, while the overall size of the motor gets slightly larger.
For what kinds of applications are the TSM11 motors best suited?
The TSM11 integrated motors are ideal for applications where space is limited. These include medical devices, healthcare equipment, laboratory automation equipment, surveillance equipment, camera controls, pumps, consumer electronics, as well as many other devices and small machines.
Are larger frame sizes available?
Yes. For larger frame sizes and applications requiring more torque view the full offering of StepSERVO™ integrated motors.
