Allen-Bradley 1391B-AA45 AC Servo Controller

The 1391B-AA45 pulse width modulated servo controller, manufactured by Allen - Bradley, is an AC single - axis servo controller. It enables motors to reach their maximum operational speed while maintaining torque, which helps achieve higher precision and boost productivity.

This servo controller has a nominal BUS output voltage of 300 Volts AC. Its continuous (RMS) current is 45 Amps, which can peak at 90 Amps. The power output rating of the 1391B - AA45 is 15kW, and it can peak at 30kW. It's equipped with a circuit breaker rated at 38 Amps (RMS), capable of safeguarding its circuit up to a current of 30 Amps before interrupting the flow.

Technical specifications for 1391B-AA45

Manufacturer Rockwell Automation

Brand Allen-Bradley

Part Number/Catalog No. 1391B-AA45

Product Type AC Servo Controller

Series B

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

Static Gain 1.5x Rated Motor I/RPM

Weight 34 lbs.

The 1391B-AA45 has a maximum drift of 0.07 RPM per degree Celsius and a dead - band of zero. There's an integral fan with an output of 50 CFM. Regarding the transformer input tolerance, which ranges from +10% to - 15%, the maximum short circuit current around it is 1300 Amps.

In terms of power dissipation, at different power output percentages, it dissipates 104W at 20% output, 208W at 40% output, 312W at 60% output, 416W at 80% output, and 520W at 100% output.

The operational temperature range of the 1391B-AA45 is from 32 to 140 degrees Fahrenheit, with a relative humidity ranging from 5 to 95% (non - condensing). It can maintain optimum performance at an altitude of 3300 feet. It weighs 34 pounds and has dimensions of 19.0 x 6.2 x 10.64 inches.