GE / IP FANUC Series 90/30 In Stock

Email

[email protected]

Call Now

(919) 867-5794

Mon-Fri 8AM-5PM EST

Automation Stop is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with Automation Stop's 1-year warranty.

Allen Bradley - Drives

AC Servo 1391

AC Servo 1391 Selection Guide

Introduction

AC servo systems are advanced motion control systems of the contemporary era. These systems utilize AC servo drives to achieve precise and accurate positioning. It also employs speed control and torque regulations, making it advisable for industrial applications. These systems consist of three main components: 1) a servo motor, 2) a servo drive, and 3) a feedback device. AC servo systems provide superior performance and flexibility.

Selecting the right AC servo drive is crucial for achieving optimal performance and efficiency in a servo system. The servo drive functions like a control unit for the servo motor. It handles interpreting control signals. It is achieved by the provision of the necessary power and current to the motor. A well-matched servo drive ensures smooth motion control, high-speed operation, and precise positioning. It helps to improve productivity, reduce downtime, and enhance system performance.

The Allen-Bradley AC Servo 1391 series is a renowned line of AC servo drives. Rockwell Automation is the manufacturer of this high-performance system. Designed with advanced features and robust construction, the AC Servo 1391 series delivers exceptional performance, reliability, and flexibility in demanding industrial environments. These drives are specifically engineered to meet the needs of diverse applications. It can meet all industrial needs, from packaging and material handling to machine tools and robotics.

This selection guide's goal is to help technicians, system integrators, and automation experts. This will advise them to understand and choose the best AC Servo 1391 drive for their needs. For users, this guide seeks to make knowledgeable choices and optimize their servo system design. It will be achieved by offering thorough information about the characteristics, capabilities, and considerations related to the AC Servo 1391 series. This guide will be an invaluable tool for selecting and implementing the AC Servo 1391 drive effectively, whether it is for selecting the appropriate torque rating, assessing motion control choices, or comprehending compatibility with feedback devices.

What is a Servo System?

The servo motor functions as an electrical device that moves machine parts accurately and effectively. It includes a BLDC motor with a positional feedback sensor. With a typical motor, it would be difficult to accurately rotate an output shaft at a certain position, angle, and speed. It is a part of the system for closed-loop motion control. A full motion system also consists of a servo motor, driving mechanisms, a potentiometer, an amplifier, a shaft, and a resolver or encoder.

A servo motor is a machine that accurately positions or moves things via feedback control. It comprises a sensor and a control circuit in addition to the motor. After receiving inputs from the sensor, the control circuit modifies the motor's spin to bring it into the required position. This technique enables precise and in-control motions in a variety of contexts, including robotics and automation.

Servo motors provide plenty of advantages over other kinds, including the following: 

  • Servo motors can work at a wide range of speeds, from very slow to very quickly, without sacrificing precision or accuracy.
  • Servo motors are the best option for situations where precision and repeatability are crucial because they control speed, torque, and position precisely. 
  • Servo motors have been designed to deliver strong torque across all speeds, making them ideal for operations that need to shift loads quickly and at high beginning torque.
  • Because of their very fast response times, servo motors are a great option for applications demanding rapid acceleration.

Product Overview

The 1391 series of AC servo controllers, manufactured by Allen-Bradley, represents a comprehensive range of products. To comply with the UL listing requirements, it is necessary to supply power to the AC Servo 1391 controller from an Isolation Transformer specifically designed for use with Allen-Bradley 1391 controllers. The planning and implementation of this controller system should exclusively involve individuals who have received proper training on 1391 servo controllers and related equipment. Moreover, static control techniques should also be implemented to reduce the risk of part damage. The AC Servo 1391 controllers are specifically dedicated single-axis AC servo controllers utilizing Pulse Width Modulation (PWM). They are commonly employed in conjunction with computer-assisted closed-loop positioning systems to regulate the movement and positioning of machine parts in automated machinery. AC Servo 1391 controllers are designed for installation within an enclosure, preferably for panel mounting, and feature an internal fan to facilitate air circulation.

The AC Servo 1391 controllers transform a 3-phase input voltage operating at a frequency range of 50 to 60 Hertz into a variable voltage, offering precise control over amplitude, phase, and frequency parameters. A 1326 AC servo motor's output is utilized to control its torque and/or speed. The AC Servo 1391 controllers are offered in three different ratings: 15 Amps, 22.5 Amps, and 45 Amps RMS. Notably, all these current ratings are available in a uniform package size. The associated power ratings for these variants are 5 kilowatts, 7.5 kilowatts, and 15 kilowatts, respectively. Normally, the suggested storing temperature extent is 0 to 65 degrees Celsius. But mostly, the controllers operate not beyond the temperature ranges of from 0 to 60 degrees Celsius. An integrated cooling fan ensures an output of 50 CFM. Mounting the AC Servo 1391 controllers within appropriate enclosures is essential to safeguard them from potential contaminants such as oil, dust, and coolants.

Controller Power Dissipation

The exhibition of power dissipation of the Bulletin 1391 controller is outlined based on different power output percentages. The approximate power dissipation values (in watts) for three models, namely 1391-AA15, 1391-AA22, and 1391-AA45, are provided.

  • At a power output of 20%, the dissipation is approximately 38W, 55W, and 104W for the respective models.
  • For a power output of 40%, the values increase to around 76W, 110W, and 208W.
  • At 60%, the power dissipation is estimated to be 114W, 165W, and 312W.
  • At 80%, it rises to approximately 152W, 220W, and 416W.
  • At 100% power output, the dissipation reaches around 190W, 275W, and 520W for the three models.

 It is crucial to note that these power dissipation figures are intended for calculating the collective system heat dissipation and ensuring that the operating temperature inside the package doesn’t cross 60°C.

Transformer Power Dissipation

Power dissipation and isolation Transformer characteristics are provided based on various power output percentages. The power dissipation values (in watts) for different rated power outputs are listed. For a specified power output of 1.5kVA, 3.5kVA, 5.0kVA, 10.0 kVA, 12.5kVA, and 15.0kVA, the power dissipation is given below:

  • At 20% output, the power dissipation is approximately 13W, 35W, 50W, 100W, 125W, and 150W.
  • At 40% output, the values increase to around 25W, 70W, 100W, 200W, 250W, and 300W.
  • At 60% output, the power dissipation is estimated to be 38W, 105W, 150W, 300W, 375W, and 450W.
  • At 80% output, it rises to approximately 50W, 140W, 200W, 400W, 500W, and 600W.
  • At 100% power output, the dissipation reaches approximately 60W, 175W, 250W, 500W, 625W, and 750W for the respective rated power outputs.

These power dissipation values are important for understanding the heat generated by the Bulletin 1391 Isolation Transformer during operation.

Catalog Numbering of the AC Servo 1391 Series

Isolation Transformer

The information about an Isolation Transformer with Bulletin Number 1391-T015DT is given below. Let's break down the information:

  • At the First position, there is a bulletin number.
  • The second position is its type: The transformer is of the "T" type, which indicates an open core and coil design.
  • The third position is kVA Rating: The transformer has a kVA rating which includes 3.5kVA, 5.0kVA, 10.0kVA, 12.5kVA, and 15.0kVA.
  • The fourth position is Primary Voltage and Frequency. The transformer has input codes for primary voltages. The options are code D for 240/480VAC, three-phase, and 60Hz. Code E for 480V/415V/380V/240V AC, three-phase, 50/60Hz and Code N for 575V/460V/230V/208V AC, three-phase, 60Hz
  • In the fifth position, the code description for the secondary voltage is as follows: This shows that the secondary voltage of the isolation transformer is 230V AC, 3-phase, and it also includes four 35.5V AC 1-phase windings with CT (Current Transformer) functionality.

Transformer Enclosure Kit

The NEMA Type 1 Transformer Enclosure Kit with the code 1391 TA2 provides an additional accessory module for Bulletin Number 1391. Let's break down the information:

  • First Position: The bulletin number is 1391, which identifies the specific transformer series or model.
  • Second Position: The code TA2 represents the accessory module for the enclosure kit. The letter description for TA2 states that this accessory module is compatible with all kilovolt-ampere ratings found in Bulletin 1391, 1389, and 1388 Isolation Transformers.

Bulletin 1391 Controller

The Bulletin 1391 Controller with the code 1391B-AA45xxx provides various specifications and options. Let's break down the information:

  • First Position: The bulletin number indicates the series of the controller. In this case, it is either Series A (1391) or Series B (1391B).
  • Second Position: The type and construction of the controller are represented by the code AA. It specifies an open frame with an internal heat sink.
  • Third Position: The nominal output voltage of the controller is described by code A, indicating 230V AC, three-phase.
  • Fourth Position: The current rating of the controller is represented by code 45. It indicates a continuous current rating of 45A RMS and a peak current rating of 90A.
  • Fifth Position: The fifth position is reserved for options that are not specified in the given data. It can be a three-character alphanumeric field selected for special modifications. It is suggested to contact a local “Allen-Bradley” Sales Representative for more information. Additionally, the data provides two code descriptions for options in the fifth position:
    • Code A07 represents a 24V DC contactor coil.
    • Code A08 represents a 240V AC contactor coil.

Available Parts of the AC Servo 1391 Series

A comprehensive collection of AC Servo 1391 parts is available. They are specifically tailored to meet your industrial motion control needs.

  • 1391-DES15-DI-AQB: The 1391-DES15-DI-AQB is an Allen Bradley AC Servo 1391 designed as an AC servo controller. It functions with an AC input voltage of 230V AC, with a 3-phase configuration and a current rating of 15A. The controller supports a frequency range of 50/60 Hertz.
  • 1391-DES22-DI-AQB: The 1391-DES22-DI-AQB is a digital AC servo drive. The servo drive maintains a consistent current rating of 22.5 amperes without interruption. It operates at a nominal bus voltage of 300 volts DC. The peak current of this drive reaches 45 amperes RMS. The continuous current output of the device is 7.5 kilowatts. In terms of weight, this servo drive weighs approximately 12.69 kilograms, which is equivalent to 28 pounds.
  • 1391-DES45-DI-AQB: The 1391-DES45-DI-AQB is a Servo Controller drive belonging to the 1391 product family manufactured by Allen-Bradley. Its design enables operation with a rated input voltage of 230 Volts AC in a 3-phase configuration. The drive offers a steady output current of 45[.70] Amperes RMS continuously. And it has the ability to deliver a peak current of 90.0 Amperes. It also offers an output power of 15.0 Kilowatts, with a peak output power of 30.0 Kilowatts.
  • 1391-T015DT: The 1391-T015DT is an Allen Bradley AC Servo 1391 transformer designed specifically for use with alternating current (AC). This transformer features an open core and coil design and has a power rating of 1.5kVA.
  • 1391-DES45-DI: The 1391-DES45-DI functions as a servo drive. It has a power rating of 19 horsepower or 14 kilowatts, with a current rating of 45 amperes in a 3-phase configuration. The operating voltage for this servo drive is 210V AC, with a frequency range of 0-200 Hertz.
  • 1391-AA15: The 1391-AA15 servo controller part is designed with an open frame and incorporates an internal heatsink for efficient heat dissipation during operation. It operates with a 3-phase nominal output voltage rating of 230V AC. The controller has a continuous current rating of 15 Amps RMS and a peak current rating of 30 Amps. Optional accessories are not included with this specific drive. Additionally, the input of the 1391-AA15 controller is protected against transient voltage.
  • 1391-AA45: 1391-AA45 is a servo controller designed with an open frame configuration. It incorporates an internal heatsink to effectively dissipate heat during operation. This servo controller supports a continuous current rating of 45 Amperes and a peak current rating of 90 Amperes. It operates with an output voltage rating of 230V AC in a 3-phase configuration. The 1391-AA45 servo controller is classified as a Series A model within the Bulletin 1391 controller series.
  • 1391B-AA15: The 1391B-AA15 is an AC servo drive used with alternating current (AC) systems. It operates at 230 volts AC with a frequency range of 0-200Hz and has a current rating of 15 amperes in a 3-phase configuration.
  • 1391B-AA22: The 1391B-AA22 is a servo controller drive from Allen Bradley, belonging to the 1391 product series. Designed for high-power applications, it operates on a rated input voltage of 240 VAC in a 3-phase configuration. The controller has a continuous output current of 22.5 RMS (A), with a peak current of 45A. With an open frame design and internal heat sink, it delivers an output power of 7.5 kW and a peak output of 15 kW, making it ideal for precise motion control in diverse industrial environments.
  • 1391B-AA45: The 1391B-AA45 is an AC servo controller from Allen-Bradley, belonging to the 1391B product range. It is a pulse-width modulated servo controller manufactured by Allen-Bradley/Rockwell Automation. This particular model offers high current ratings of 45 amperes continuous and 90 amperes peak. Despite its high current capabilities, it maintains a compact size similar to other controllers in the “AC Servo 1391 series”, ensuring easy installation and maintenance.
  • 1391B-AA45N: The 1391B-AA45N is an advanced servo controller from Allen-Bradley, designed for industrial applications to precisely control system operations. Weighing 34 pounds, this controller operates on a 230-volt alternating current input voltage.
  • 1391B-ESAA15-AQB: It is an AC servo controller designed for alternating current (AC) systems, with an input voltage of 230V AC in a 3-phase configuration. The controller has a current rating of 15A and a power output of 5.5 Kilowatts.
  • 1391B-ESAA22-AQB: The 1391B-ESAA22-AQB is an AC servo controller manufactured by Allen Bradley. It is designed for alternating current (AC) systems with an input voltage of 230V AC in a 3-phase configuration. The controller has a current rating of 22A and a power output of 8 Kilowatts.
  • 1391B-ESAA45: It is manufactured for usage with alternating current (AC) systems. It operates at an input voltage of 230 Volts AC in a 3-phase configuration. The controller has a current rating of 45A and a power output of 14 Kilowatts.
  • 1391B-ESAA45-AQB: This controller is part of the AC Servo 1391 series and features a unique feedback device system. It is a high-current module with a continuous current rating of 45 amperes, capable of reaching a maximum current range of 90 amperes. The controller provides a consistent power output of 15 kW, capable of reaching a maximum output range of 30 kW.

Conclusion

The AC Servo 1391 series is a family of AC servo drives that are very dependable and adaptable. It is suitable for various industrial applications where accurate positioning, speed control, and torque regulation are needed. Users can achieve optimal performance and efficiency in their servo systems by selecting the right AC servo drive.

This selection guide serves as a valuable resource for technicians and automation experts. It helps them to choose the best AC Servo 1391 drive for their specific requirements. It provides comprehensive information about the characteristics of the AC Servo 1391 series. Moreover, the guide also highlights the key features, such as their power dissipation characteristics and the necessary isolation transformer for compliance with UL listing requirements. It also provided insights into the catalog numbering system. The available parts and their respective specifications make them well-informed about it. With the information provided in this selection guide, users can make the right decisions. They can optimize their servo system designs and achieve superior performance and efficiency in their motion control systems.

Browse our selection of AC Servo 1391 units

AutomationStop.com's online catalog offers one of the largest selections of preowned AC Servo 1391 units in the world.

1391-DES15-DI-AQB

The 1391-DES15-DI-AQB AC Servo Controller is a member of Allen-Bradley's 1391 series, designed and manufactured by the company. This controller is rated for an AC input voltage of 230V AC, 3-phase, 15A, 50/60Hz, and an AC output voltage of 210V AC, 3-phase, 0-200Hz, 15A, and 5.5kW output power. It features an A Quad B feedback encoder and a built-in interface, providing advanced control options for users. The controller's main contactor coil voltage rating is 115 Volts AC, and its nominal bus output voltage rating is 300 Volts DC.

1391-DES22-DI-AQB

The 1391-DES22-DI-AQB is a single-axis AC servo controller/amplifier in the Allen Bradley 1391 series. It can handle an input voltage of 230V AC, 3-phase, 50/60Hz, and an input current of 26A. The controller can deliver a 3-phase output voltage of 210V AC, a continuous output current of 22A, and a maximum output power of 8KW. Additionally, it comes equipped with a built-in 2 Line, 16 Character LCD Display and 5 Button Keypad for programming and control.

1391-DES45-DI-AQB

The Allen-Bradley 1391-DES45-DI-AQB is a Digital AC Servo Drive with a continuous current of 45A and a peak current of 90A. The drive features an integral display as the user interface and a quad encoder output. The drive has a nominal bus output voltage of 300V DC and can deliver a continuous power output of 15 kW and a peak power output of 30 kW. And its input circuit breaker rating is 38A RMS, with a circuit breaker interrupt rating of 1300A.

1391-T015DT

The 1391-T015DT by Allen Bradley is an isolation transformer designed to work with their 1391B-ES AC servo controllers. The 1391-T015DT transformer has a 1.5kVA rating at 60 degrees Celsius and a primary voltage range of 240-480V (3-phase, 60Hz). Its secondary voltage rating is 230V (3-phase), with four single-phase windings, each with each winding rated 35.5V. The 1391-T015DT can power up to four 1391B-ES controllers and has a power dissipation range of 13 to 60 Watts at different loads.

1391-DES45-DI

The 1391-DES45-DI is a single-axis AC servo controller/amplifier designed by Allen Bradley. It operates with 230V AC input power and can handle high-power applications with its 45A continuous current and 300V DC nominal bus output. The motor contactor can be switched reliably with its 115V AC M Contactor Coil. It features an integrated display user interface for simple system operation and monitoring. With an output power of 14KW and an output current (RMS) of 45A, this servo controller is suitable for high-demand industrial applications.

1391-AA15

The 1391-AA15 controller is an Allen-Bradley Bulletin 1391 servo controller that has an open frame and an internal heatsink for dissipating heat during operation. Its 3-phase nominal output voltage rating is 230V AC. The 1391-AA15 controller also operates at 15 Amps of RMS continuous current and at 30 Amps of peak current. There are no optional accessories included with this drive. The 1391-AA15 controller's input is protected from transient voltage.

1391-AA45

The Allen-Bradley Bulletin 1391 series 1391-AA45 controller is a servo controller which comes in an open type of frame. It also has an internal heatsink for dissipating heat during operation. The 1391-AA45 servo controller supports 45 Amperes of continuous current and 90 Amperes of peak current during operation. It has an output voltage rating of 230V AC (3-phase). The 1391-AA45 servo controller is a Series A type of Bulletin 1391 controller.

1391B-AA15

The Allen-Bradley 1391B-AA15 controller is an industrial servo controller. It is part of Series B in the Allen-Bradley 1391 controller product line. The 1391B-AA15 servo controller operates on 230V AC of rated 3-phase output voltage at 50 to 60 Hertz. It has a heatsink to protect it from overheating and its frame is open. The continuous current rating of the 1391B-AA15 servo controller is 15 Amperes. This controller does not come with optional features.

1391B-AA22

The 1391B-AA22 from Allen Bradley is a part of the 1391 product series. It serves as a servo controller drive and is equipped to handle high-power applications, with a rated input voltage of 240 VAC, 3-phase, and a continuous output current of 22.5 RMS (A), with a peak current of 45A. Its open frame design and internal heat sink, combined with a maximum output power of 7.5 kW and peak output of 15 kW, making it well-suited for precise motion control across various industrial environments.

1391B-AA45

The Allen-Bradley AC Servo 1391B-AA45 is a compact, pulse-width modulated servo controller. It supports high current ratings of 45A continuous and 90A peak. It has transient voltage protection, and an internal circuit breaker that can open all three of the controller's AC line leads in the event of a short circuit. It can also function in environments with up to 95% relative humidity and temperatures as high as 140 degrees Fahrenheit, and it includes a power bus supply module rated at 300 Volts DC.

1391B-AA45N

The Allen Bradley 1391B-AA45N Servo Controller Drive is designed for use with a 240 VAC 3 Phase input. It provides a continuous RMS current of 45A and a peak current of 90 Amperes. With an open frame and internal heat sink, the drive can deliver 15.0 kW of continuous power and up to 30.0 kW at peak performance. It is a reliable choice for industrial applications requiring high power and precision motion control.

1391B-ESAA15-AQB

Catalog number 1391B-ESAA15-AQB is a servo controller manufactured by Allen Bradley. This device has a nominal output voltage rating of 230 volts AC, three-phase. Additionally, this servo controller has a continuous current rating of 15 amperes RMS, as well as a peak current rating of 30 amperes. Furthermore, the 1391B-ESAA15-AQB has a continuous power output rating of 5.0 kilowatts and a peak power output rating of 10.0 kilowatts.

1391B-ESAA22-AQB

The 1391B-ESAA22-AQB servo controller is an Allen-Bradley 1391 series single-axis type of AC servo controller. Its 3-phase input power rating is 230V AC at 50 to 60 Hertz and its 3-phase output power rating is 210V AC at 0 to 200 Hertz. The 1391B-ESAA22-AQB controller also supports 300V DC of nominal bus output voltage. Its continuous output current rating is 22 Amps and its peak output current rating is 45 Amps (RMS).

1391B-ESAA45

The Allen-Bradley 1391B-ESAA45 controller is an AC-powered servo controller in the Bulletin 1391 series of Allen-Bradley servo controllers. It supports 210 Volts AC of output voltage at 0 to 200 Hertz of frequency and it supports 230 Volts AC of input voltage at 50 to 60 Hertz of frequency. The 1391B-ESAA45 servo controller weighs approximately 40.5 pounds. Its output power ratings are 15 kilowatts (continuous) and 30 kilowatts (peak).

1391B-ESAA45-AQB

The 1391B-ESAA45-AQB is an Allen-Bradley 1391 series high-powered single-axis AC Servo controller/amplifier. It has a nominal bus output voltage of 300V DC, an input power of 230V AC 3-Phase 50/60Hz 38A, and an output power of 210V AC 3-Phase 0-200Hz, 15KW. The A Quad B encoder feedback device is its distinguishing feature. The 1391B-ESAA45-AQB can handle high power ratings of 45A continuous RMS current, 90A peak RMS current, and 30KW peak output power while being protected from short circuits by a 38A RMS current integral circuit breaker.

Automation Stop sells used surplus products. Automation Stop is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by Automation Stop come with Automation Stop’s 1-year warranty and do not come with the original manufacturer’s warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. This website is not sanctioned or approved by any manufacturer or tradename listed.

Rockwell Disclaimer: The product is used surplus. Automation Stop is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Automation Stop is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Automation Stop also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Automation Stop also makes no representations as to your right to install any such firmware on the product. Automation Stop will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

TOP