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Allen-Bradley 1391-AA22 AC Servo Controller

$2,799.00 USD

Sale Sold out

ConditionSurplus - Untested MPN1391-AA22 Stock #0226-00645

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 35.0 lbs

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Used in CNC machining centers and automated positioning systems, the Allen-Bradley Bulletin 1391 AC Servo Controller is a pulse width modulated, single-axis drive designed to regulate the speed and torque of compatible AC servo motors in closed-loop control applications. The unit carries catalog number 1391-AA22, Series B, with serial number 01504.

AC input is rated at 230V, 3 Phase, 50/60 Hz, 26 Amps, with a control transformer input of 36V, 1 Phase, 50/60 Hz, 5.5 Amps. Maximum symmetrical RMS short circuit current is rated at 1300 Amps. AC output is 210V, 3 Phase, variable frequency from 0 to 200 Hz, at 22 Amps and 8.0 kW. The unit features an integrated cooling fan and an open frame construction designed for panel mounting inside a suitable enclosure.

The front panel includes status indicator LEDs for overtemperature, power fault, control power, overvoltage, undervoltage, current foldback, run enable, and drive ready conditions, along with a velocity offset adjustment potentiometer. UL listing is visible on the unit. Instruction manual reference is 1391-5.1. The unit was manufactured in the USA by Allen-Bradley and is part of the Rockwell Automation 1391 servo controller product family, compatible with 1326 series AC servo motors.

Stock # 0226-645

Please Note: This unit is surplus inventory, sold as-is from MRO Exchange surplus stock. Allen-Bradley is a trademark of Rockwell Automation, Inc. MRO Exchange is an independent reseller and is not an authorized distributor of Rockwell Automation. Product may differ from units available through authorized distributors in date code, country of origin, packaging, accessories, or firmware revision. The warranty from the manufacturer does not apply.

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Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.