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.
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.
Alternative model names
13918-ESAA45-AQ8
13918-ESAA45-AQB
13918ESAA45AQ8
13918ESAA45AQB
1391B-ESAA45-AQ8
1391B-ESAAA5-AQB
1391BESAA45AQ8
1391BESAA45AQB
1391BESAAA5AQB
139LB-ESAA45-AQB
139LBESAA45AQB
L391B-ESAA45-AQB
L391BESAA45AQB
L39L8-ESAAA5-AQ8
L39L8ESAAA5AQ8
L39LB-ESAA45-AQB
L39LBESAA45AQB