Allen-Bradley 1391B-ESAA45-AQB AC Servo Controller

The Allen-Bradley 1391B-ESAA45-AQB is a single - axis AC servo controller/amplifier with a quad encoder output. It's a 3 - phase controller with 230V, 38A input power and a 50 - 60Hz line frequency. The output power is 210V AC, 15kW at 0 - 200Hz. The RMS output current is 45A continuously and 90A at peak, and the nominal bus output voltage is 300V DC.

Newer models of the 1391B-ESAA45-AQB can prevent backlash with the 1388 Anto - Backlash module. They can also accelerate or decelerate linearly using the manual CR - APG - 001 control module with 1 - 4 preset speeds.

Technical specifications for 1391B-ESAA45-AQB

Manufacturer Rockwell Automation

Brand Allen-Bradley

Part Number/Catalog No. 1391B-ESAA45-AQB

Product Type AC Servo Controller

Series B

2nd Position Speed Capability Extended Speed Range

Nominal Bus Output Voltage 300V DC

Continuous Current (RMS) 45A

Peak Current (RMS)90A

Continuous Power Output 15 kW

Peak Power Output30 kW

Input Circuit Breaker Rating 38A RMS

Circuit Breaker Interrupt Rating1300A

Weight 34 lbs.

Fourth Position Quad Encoder Output

The 1391B-ESAA45-AQB has a minimum rated load efficiency as high as 85% and a modulation frequency of 2500Hz with a +/- 10% tolerance.

This AC servo controller/amplifier can be stored or operated in environments with a relative humidity between 5% and 95% (non - condensing). It functions optimally at temperatures from 32 to 140 oF (0 to 60 oC), and can be stored within a temperature range of 32 oF (0 oC) to 149 oF (65 oC). It works best at an altitude of 3300 feet or less. When unloaded, the controller/amplifier has an integral fan output of 50 CFM and a deadband rating of 0.