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1326AD AC Servo Motor

1326AD / Allen-Bradley (Official website)

Brushless AC servo motor using SmCo permanent magnets. High torque-to-inertia ratio, delivering high torque across the full speed range. Used in combination with 1389/1391 servo drives.

Last verified: (date the content was verified against the source document)

Specifications

Flange size 76.2 mm
Rated output 0.52~0.67 kW
Maximum Rotational Speed 3000~5000 rpm
Stall Torque 11.0 lb.-in.
Instantaneous maximum torque 33.0 lb.-in.
Mass 5.5 lbs.

How to choose AC Servo Motors

Points to check when selecting, with the values for this product (1326AD AC Servo Motor).

  1. 1. Select rated torque suited to continuous load

    Confirm that the RMS torque over the entire operating cycle is within the rated torque. Convert the load torque including the efficiency and reduction ratio of transmission elements such as ball screws and belts, then select with margin. Listed models range from 1.27 to 2.4 N·m.

  2. 2. Check maximum torque required for acceleration and deceleration

    This product: Instantaneous maximum torque 33.0 lb.-in.

    Confirm that the peak torque required during acceleration and deceleration does not exceed the instantaneous maximum torque. Peak torque can only be sustained for a limited time, and the maximum current of the drive also sets an upper limit, so check the specifications of the matching amplifier as well.

  3. 3. Review load inertia ratio against rotor inertia

    If the load inertia moment converted to the motor shaft is too large relative to the rotor inertia moment J, response will drop and vibration may occur. Choose a low-inertia model for high-speed response, or a higher-inertia model for stable control of large inertia loads. Check the manufacturer's recommended permissible ratio.

  4. 4. Match required speed with maximum rotational speed

    This product: Maximum Rotational Speed 3000~5000 rpm

    Convert the maximum feed speed of the machine into motor rotational speed and confirm it is within the maximum rotational speed. Torque decreases at high speed, so use the speed-torque characteristics to confirm that the required torque is available in the range above rated speed.

  5. 5. Match output capacity and mounting dimensions

    This product: Rated output 0.52~0.67 kW

    Since the drive capacity class is determined by rated output, confirm that the motor and amplifier are compatible. Also confirm that the flange size and shaft height allow mounting to the machine, and when replacing existing equipment, check the mounting holes and shaft diameter.

  6. 6. Confirm holding brake and operating environment

    For vertical axes, select a model with a holding brake to prevent falling during power failure. A model with a brake has greater mass and overall length. In environments exposed to dust or water, check the protection rating (such as IP64 or IP65), and where vibration or high/low temperatures are severe, also check the type of detector.

This guide was written by AI based on the listed products' documents and specification items.

About AC Servo Motors and all products

Description

TENV IP65 construction with a 76.2 mm frame diameter; sinusoidal commutation provides smooth low-speed operation. Thermal switches built into the windings prevent overheating. NEMA inch flange or metric face selectable; encoder or resolver feedback options available. No motor-mounted brake.

Features

  • Brushless design, no brush maintenance required
  • High torque-to-inertia ratio with samarium cobalt permanent magnets
  • TENV IP65 construction for harsh environments
  • Smooth low-speed operation with sinusoidal commutation
  • Winding thermal switch overheat protection
  • 1.8 m integrated cable (optional)

Applications

  • Machine tools
  • Industrial positioning equipment

FAQ

Q. Which servo drives can the 1326AD AC Servo Motor be used with?
A. It is used in combination with 1389/1391 servo drives.
Q. What are the protection structure and overheating countermeasures of the 1326AD AC Servo Motor?
A. It features TENV IP65 construction for harsh environments. Thermal switches are built into the windings to prevent overheating.
Q. What are the mounting flange and feedback options for the 1326AD AC Servo Motor?
A. NEMA inch flange or metric face can be selected. Feedback is available as an encoder or resolver option.
Q. What are the main specifications and applications of the 1326AD AC Servo Motor?
A. Flange size is 76.2 mm, rated output is 0.52 to 0.67 kW, maximum rotational speed is 3000 to 5000 rpm, stall torque is 11.0 lb.-in., peak instantaneous torque is 33.0 lb.-in., and mass is 5.5 lbs. Applications include machine tools and industrial positioning equipment.

Written by AI based on the content of the source documents.

Source documents

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