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Specification & Description
| Specification | Description |
|---|---|
| Part Number | EMMS-ST-57-M-SEB-G2 |
| Alternative Part Number | EMMSST57MSEBG2 |
| Manufacturer | Festo |
| Motor Type | Stepper Motor |
| Nominal Voltage | 48 V DC |
| Nominal Current | 9.5 A |
| Max. Rotational Speed | 550 rpm |
| Holding Torque | 5.9 Nm |
| Stepper Angle | 1.8 ±5% |
| Winding Resistance | 0.23 ±10% Ω |
| Winding Inductance | 2.6 mH |
| Output Mass Moment of Inertia | 1.9/1.97 kgcm² (with brake) |
| Radial Load on Shaft | 200 N |
| Axial Load on Shaft | 65 N |
| Mass Moment of Inertia of Rotor | 1.9 kgcm² |
| Brake Operating Voltage | 24 ±10% V DC |
| Brake Power | 11 W |
| Brake Holding Torque | 2 Nm |
| Brake Mass Moment of Inertia | 0.07 kgcm² |
| Response Delay | 2/6 ms |
| Separation Time | 25 ms |
| Encoder Type | Incremental |
| Encoder Pulses/Revolution | 500 1/rev |
| Encoder Interface | RS422, TTL, AB channel, zero index |
| Encoder Operating Voltage | 5 V DC |
| Weight (with brake and encoder) | 3,600 g |
| Protection Class (Motor Shaft) | IP54 |
| Protection Class (Motor Housing) | IP65 (IP54 for size 87) |
| Ambient Temperature | –10 … +50 °C |
| Storage Temperature | –20 … +70 °C |
| Relative Air Humidity | 0 … 85% (non-condensing) |
| Insulation Protection Class | B |
| Heat Class to EN 60034-1 | B |
| Rated Class to EN 60034-1 | S1 |
| Certification | c UL us - Recognized (OL), RCM trademark |
| Materials Note | RoHS-compliant |
The Festo EMMS-ST-57-M-SEB-G2 is a high-performance stepper motor renowned for its precision and reliability in a variety of industrial applications. This motor is part of Festo's EMMS-ST series, which utilises 2-phase hybrid technology to deliver exceptional torque and speed control. With a nominal voltage of 48 V DC and a nominal current of 9.5 A, this motor is designed to handle demanding tasks with ease.
The EMMS-ST-57-M-SEB-G2 features a holding torque of 5.9 Nm, ensuring stable operation even at high rotational speeds, which can reach up to 550 rpm. The stepper angle is precisely controlled at 1.8 ±5%, allowing for exact positioning and movement. Additionally, the motor is equipped with an integrated encoder and brake, enhancing its functionality for closed-loop control and providing added safety during operation.
Constructed with a robust design, the motor boasts an IP65 rated housing for the motor and an IP54 rated shaft, providing protection against dust ingress and water spray from any direction. This makes it suitable for use in harsh environments commonly found in industrial settings.
The EMMS-ST-57-M-SEB-G2 is also designed with ease of integration in mind, featuring standard flange dimensions for straightforward mounting. Its compatibility with a range of Festo gear units and controllers allows for a flexible and scalable solution that can be tailored to specific application requirements.
This stepper motor is an ideal choice for engineers and system integrators looking for a reliable and precise motion control solution that can be seamlessly integrated into a wide range of automation systems. Whether it's for packaging, material handling, or custom machinery, the Festo EMMS-ST-57-M-SEB-G2 stepper motor delivers performance that you can depend on.
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Frequently Asked Questions
What are the key features of this stepper motor?
The stepper motor is a 2-phase hybrid technology motor with optional integrated encoder for closed-loop control, sinusoidal current impressing, and an optional holding brake. It has a protection class of IP54, making it suitable for a variety of industrial applications.
Can this stepper motor be used with a gear unit?
Yes, this stepper motor can be paired with a planetary gear unit, which is available in different ratios and versions upon request. The gear unit also features life-time lubrication and shares the same protection class of IP54.
What are the environmental operating conditions for this stepper motor?
The stepper motor is designed to operate within an ambient temperature range of –10 to +50°C and can be stored in temperatures ranging from –20 to +70°C. It also has a relative air humidity range of 0 to 85% (non-condensing).
What type of encoder is integrated into the stepper motor?
The motor optionally includes an incremental optical encoder with RS422, TTL, AB channel, and zero index interface, providing 500 pulses per revolution for precise control.
What is the significance of the stepper angle for this motor?
The stepper angle of 1.8 ±5% indicates the angle by which the motor shaft moves with each step. This allows for precise control of the motor's position, which is essential for applications requiring high precision.
How does the brake function in this stepper motor?
The optional holding brake in the stepper motor is electrically activated and designed to hold the motor shaft in position when the motor is not powered. It operates at 24 V DC and provides a holding torque that ensures the motor maintains its position under load.
What type of power supply is required for this stepper motor?
The stepper motor requires a nominal voltage of 48 V DC for operation. It is important to use a power supply that can provide stable and sufficient voltage to ensure optimal performance.
What are the mounting options for this stepper motor?
The motor comes with a standard flange for mounting, which corresponds to IEC 60034 standards. The flange dimensions and mounting holes are designed for easy integration into a wide range of applications.
Is the stepper motor RoHS-compliant?
Yes, the stepper motor is RoHS-compliant, adhering to the restrictions on the use of certain hazardous substances in electrical and electronic equipment.
What applications are suitable for this stepper motor?
This stepper motor is suitable for a wide range of applications including precision positioning systems, CNC machinery, automated production lines, and any application that requires precise control of motor movement.
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