- Dead displays
- Local/remote port failures
- Main control board failures
- I/O Failures
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Allen Bradley AC Servo 1391 Repair
We offer extensive repairs for your AC Servo 1391. We keep many spare parts in stock so that we can repair your AC Servo 1391 as efficiently and effectively as possible. Our standard repair lead time is 2-4 weeks. However, we can often repair your unit much faster if necessary. We can repair most issues with your AC Servo 1391 and if for some reason we cannot repair your unit we will do our best to offer a refurbished unit at the repair cost, so that you can get a working unit back as soon as possible!
- 2 Year DO Supply Warranty
- Fast repairs at low costs
- No surprises or up-charges for difficult repairs
- Standard lead time of 2-4 weeks
- Extensive quality control and testing
Get a repair quote
Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's
warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Hardware issues & error codes we repair
We repair all of the following hardware issues and error codes with your AC Servo 1391 parts.
- Power control board failures
- SCR/IGBT failures
- Faulty fans
- Heatsink sensor faults
- DC bus failures
- Precharge failures
- Undervoltage
- Overvoltage
- Broken Plastic Covers
- Missing Covers
- Missing Terminals
- Broken mounting attachments/corners
Browse AC Servo 1391 Repairs
Browse our catalog of repairable AC Servo 1391 parts to get a quote.
1391B-ESAA15-AQB
The Allen-Bradley 1391B-ESAA15-AQB AC Servo Controller has a 10 kW Peak Power Output and a 17A RMS Input Circuit Breaker Rating.
Available
1391B-ESAA22
The Allen-Bradley 1391B-ESAA22 AC Servo Controller has a 15 kW Peak Power Output and a 26A RMS Input Circuit Breaker Rating.
In Stock Ships Today
1391B-ESAA22-AQB
The Allen-Bradley 1391B-ESAA22-AQB AC Servo Controller has a 15 kW Peak Power Output and a 26A RMS Input Circuit Breaker Rating.
In Stock Ships Today
1391B-ESAA45
The Allen-Bradley 1391B-ESAA45 AC Servo Controller has a 30 kW Peak Power Output and a 38A RMS Input Circuit Breaker Rating.
Available
1391B-ESAA45-AQB
The Allen-Bradley 1391B-ESAA45-AQB AC Servo Controller has a 30 kW Peak Power Output and a 38A RMS Input Circuit Breaker Rating.
Available
1391B-ESAZ45-AQB
This AC servo controller utilizes a three-phase design, operating effectively between 50 Hz and 60 Hz. It boasts a continuous current rating of 45 A RMS and a peak current capacity of 90 A. The open-t
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1391B-EST45
The Allen-Bradley 1391B-EST45 AC Servo Controller has a 45 kW Peak Power Output and a 38A RMS Input Circuit Breaker Rating.
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About AC Servo 1391
The 1391 AC servo drive series is a series of pulse width modulated digital servo drives that consist basically of a programmable servo drive with a single axis. These drives have been designed by Allen-Bradley. These drives are able to operate servo motors from the Allen-Bradley 1326 series. The 1391 AC series servo drives also enable these servo motors to operate with greater precision, and with increased speed, and all this can be done through an encoder output that produces 4 channels of different lines each and 2 marker pulses per motor revolution that feeds position information to the position controllers.
The Allen-Bradley 1391 AC series servo drives can be chosen with contactor auxiliary switches, current or torque amplifier options, or external shunt regulators. These operations help to enhance each function that the drive brings by default. Other important features that can be added to the drives are torque or current monitors that help the users to have a better vision of the conditions in which the drives are operating at the moment. Some of the most important parts of the Allen-Bradley 1391 AC series servo drives are status LEDs, circuit breakers with fuses, LCD displays that contains 2 lines and 16 characters, a keypad with 5 buttons that are generally used for programming, control signals, power connections, duty cycle switches, and ground studs. The status LEDs flash green when there are no faults but when the bus is low, they are steady green when there are no faults and the operating voltage is at a great level, and they flash red when a fault has occurred and the functioning of the drive is affected.