Product Short Description
Model Series: B&R 8MSA Open-loop Stepper Motor Series
Product Introduction: A high-performance two-phase stepper motor launched by B&R, belonging to the 8MSA standard series. It is used for open-loop precision position control, featuring simple control, low cost and reliable operation, widely used in low and medium precision motion control scenarios in industrial automation.
Description
- Frame Size: 3L standard frame
- Step Angle: 1.8° full step
- Rated Voltage: 48 VDC / 230 VAC compatible
- Rated Current: 3.0 A per phase
- Protection Class: IP54
- Insulation Class: B
- Winding Type: Two-phase four-wire winding
- Structure Type: Single shaft standard version
- Standard 1.8° step angle, high stepping positioning resolution
- Open-loop control mode, simple system configuration and easy debugging
- Stable low-speed operation, low vibration and low noise
- Good holding torque performance for static position locking
- Compact structure, convenient installation and wiring
- Matched with B&R dedicated stepper drive for stable operation
- Rated Holding Torque: 2.8 Nm
- Maximum No-load Speed: 3000 rpm
- Step Accuracy Error: ±5% (no load)
- Allowable Ambient Temperature: -10 °C ~ +50 °C
- Service Life: ≥ 25,000 hours continuous operation
- Vibration Level: Low vibration design for automation equipment
- Motor housing: Lightweight die-cast aluminum alloy
- Stator and rotor core: High-quality silicon steel sheet laminated
- Winding: Enameled copper wire with high insulation performance
- Motor shaft: Carbon steel with surface anti-rust treatment
- Bearings: Standard sealed miniature bearings
- Outer shell sealing: General-purpose dust-proof rubber ring
- Standard square flange mounting structure, universal installation size
- Compact cylindrical overall structure, small occupied space
- Rear terminal wiring structure, clear wiring layout
- Integrated internal winding, firm fixation and strong anti-vibration ability
- Simple mechanical structure, fewer wearing parts and low failure rate
- Single output shaft design, convenient connection with gears, synchronous wheels and other transmission parts
This product is a two-phase hybrid stepper motor. The stepper driver sends pulse signals and direction signals to the motor winding. The stator windings are energized in a specific phase sequence to generate a rotating stepping magnetic field. The magnetic field drives the rotor to rotate at a fixed step angle corresponding to each pulse signal. Each pulse corresponds to a fixed rotation angle of the motor shaft, so as to realize accurate position control by counting pulses. The motor maintains a certain holding torque after power-off to keep the load in the set position. It adopts open-loop control without position feedback components, and completes motion control purely through pulse command.
- Simple control system, no feedback device required, reducing system cost
- Standard step angle, stable positioning effect for medium and low precision scenarios
- Compact size and light weight, flexible layout of equipment
- Low failure rate, simple maintenance and long service life
- Low operation noise and vibration, adapting to workshop working environment
- Universal installation dimensions, strong compatibility with various transmission structures
Small automated equipment, sorting machinery, monitoring rotation mechanism, small conveying equipment, office automation equipment, experimental testing equipment, light-duty positioning machinery
- Adopt standard square flange for fixed installation, ensure the mounting surface is flat
- Align the motor shaft with the transmission part, and avoid forced assembly
- Wiring shall follow the two-phase four-wire phase sequence marking on the nameplate
- Keep the installation position dry and ventilated, avoid direct sunlight and heat source baking
- The signal line shall be separated from the power line to reduce electromagnetic interference
- Do not exceed the rated current and voltage range for use
- Avoid long-term locked-rotor operation, which will cause winding overheating
- Regularly clean the surface dust to ensure normal heat dissipation
- Do not apply strong impact or axial force to the motor shaft
- When the stepping is out of sync or stuck, cut off the power supply first for inspection
- Store in a dry environment when not in use for a long time, and prevent winding moisture
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