AB罗克韦尔（Allen-Bradley）的1326AB-B420E-21伺服电机是一款高性能的三相无刷交流同步电机，专为满足伺服系统应用的严格要求而设计。以下是对该伺服电机的详细解析：

一、基本特性

• 型号：1326AB-B420E-21
• 类型：高性能三相无刷交流同步电机
• 品牌：Allen-Bradley（罗克韦尔）

二、技术特点

1. 永磁转子：采用永磁转子设计，有助于提高伺服响应速度和精度。
2. 三相正弦绕组定子磁场：定子磁场采用三相正弦绕组设计，能够将热量直接传递到环境中，确保电机在低速时也能平稳运行。
3. 无刷旋转变压器：提供位置、换向和速度反馈信息，使电机在恶劣环境下也能经久耐用。
4. 高精度输出：失速（零转/分）时的连续额定输出扭矩为100%，且电机具有精密平衡特性，峰-峰总位移仅为0.0005英寸（0.0127毫米）。
5. 多种安装方式：支持垂直轴向上或向下安装，满足不同应用场景的需求。

三、防护与连接

• 防护等级：IP65（与轴封选件一起使用时），电机防尘且可承受脉冲水流，确保在恶劣环境中也能稳定运行。但需注意，当使用外部安装的编码器/分辨率反馈或鼓风机套件时，电机将失去IP65防护等级。
• 电缆与连接器：提供环境密封的电源和反馈电缆包，电缆可按标准（柔性）、轨道（多柔性）或加长（ES）订购。标配MIL规格连接器，确保连接的可靠性和稳定性。

四、选件与扩展

1326AB-B420E-21伺服电机还提供多种选件和扩展功能，以满足不同用户的需求。这些选件包括：

• 制动器：带90V直流线圈或24V直流线圈的整体式弹簧固定制动器。
• 制动器电源：将115伏交流电转换为90伏直流制动器所需的电压。
• 轴油封配件包：用于现场安装氟橡胶轴封，无需拆卸电机。
• 安装与反馈组件：提供带公制轴的NEMA英制或IEC公制法兰安装选项；旋转变压器反馈组件提供绝对/游标或单无刷旋转变压器反馈；接线盒套件提供轴向安装的连接器；二次反馈安装套件用于现场安装Allen-Bradley编码器或旋转变压器。
• 冷却套件：鼓风机冷却套件为电机提供空气冷却，最多可增加35%的扭矩输出。

五、应用与兼容性

• 应用领域：该伺服电机广泛应用于数控机械、冶金、石油天然气、石油化工、化工、造纸印刷、纺织印染、机械、电子制造、汽车制造等多个行业。
• 兼容性：与Allen-Bradley的1391交流伺服控制器配合使用，能够实现高精度的运动控制。

六、注意事项

• 在使用外部安装的编码器/分辨率反馈或鼓风机套件时，需注意电机将失去IP65防护等级。
• 在选择和安装选件时，需根据实际应用场景和需求进行配置，以确保电机的最佳性能和稳定性。

AB Rockwell's (Allen-Bradley) 1326AB-B420E-21 servo motor is a high-performance, three-phase brushless AC synchronous motor designed to meet the demanding requirements of servo system applications. The following is a detailed analysis of the servo motor:

1. Basic characteristics

Model: 1326AB-B420E-21

Type: High performance three-phase brushless AC synchronous motor

Brand: Allen-Bradley (Rockwell)

Second, technical characteristics

Permanent magnet rotor: The permanent magnet rotor design helps to improve the servo response speed and accuracy.

Three-phase sinusoidal winding stator magnetic field: The stator magnetic field is designed with three-phase sinusoidal winding, which can transfer heat directly to the environment, ensuring that the motor can run smoothly at low speeds.

Brushless rotary transformer: Provides position, commutation and speed feedback to make the motor durable in harsh environments.

High-precision output: 100% continuous rated output torque at stall (zero RPM), and the motor has a precision balance with a peak-to-peak total displacement of only 0.0005 inches (0.0127 mm).

Multiple installation modes: Vertical axis upward or downward installation to meet different application scenarios.

Third, protection and connection

Protection class: IP65 (when used with shaft seal options), the motor is dustproof and can withstand pulsed water flow, ensuring stable operation in harsh environments. However, it should be noted that when using externally mounted encoder/resolution feedback or blower kits, the motor will lose its IP65 protection rating.

Cables and connectors: Environmentally sealed power and feedback cable packages available in standard (flexible), rail (multi-flexible) or extended (ES) orders. The standard MIL connector ensures the reliability and stability of the connection.

4. Options and extensions

The 1326AB-B420E-21 servo motor also offers a variety of options and extended functions to meet the needs of different users. These options include:

Brake: Integral spring fixed brake with 90V DC coil or 24V DC coil.

Brake power supply: The voltage required to convert 115 volts AC to 90 volts DC brake.

Shaft oil seal kit: For field installation of fluororubber shaft seals without motor disassembly.

Mounting and feedback components: NEMA Imperial or IEC metric flange mounting options with metric shafts; Rotary transformer feedback components provide absolute/vernier or single brushless rotary transformer feedback; Junction box kits provide axially mounted connectors; Secondary feedback mounting kit for field installation of Allen-Bradley encoders or rotary transformers.

Cooling Kit: The blower cooling kit provides air cooling to the motor and increases torque output by up to 35%.

5. Application and compatibility

Application: The servo motor is widely used in CNC machinery, metallurgy, oil and gas, petrochemical, chemical, paper printing, textile printing and dyeing, machinery, electronic manufacturing, automobile manufacturing and other industries.

Compatibility: Used in conjunction with Allen-Bradley's 1391 AC servo controller for highly accurate motion control.

Six, precautions

When using externally mounted encoder/resolution feedback or blower kits, be aware that the motor will lose its IP65 protection rating.

When selecting and installing options, configure them according to actual application scenarios and requirements to ensure the best performance and stability of the motor.