Allen-Bradley AC Servo Controller 1391-AA22
Allen-Bradley AC Servo Controller 1391-AA22
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Condition: Surplus inventory. Photos reflect the item’s current condition and details. If the item arrives in a condition that differs from what is shown or described, it may be eligible for return or refund.
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
Surplus inventory sold as described. Please review photos, specifications, and compatibility details carefully before purchase. Reach out with any questions prior to ordering.