1388B-AV40

The 1388B-AV40 is a transistorized servo controller by Allen-Bradley. It utilizes advancements in power semiconductor technologies to provide peak performance in a modular package. The 1388B-AV40 controller will handle most DC permanent magnet servomotors with on-site adjustments and setup. The 1388B-AV40 has a nominal output voltage rating of 150 Volts DC and a continuous current of 40 Amperes. Peak current for this controller is 100 Amperes and it has a continuous power output of 3.0 Kilowatts. The 1388B-AV40 has a peak power output of 15 Kilowatts and a minimum circuit inductance of 0.4 millihenries (mH). Additional specifications for the 1388B-AV40 include an internal dynamic braking resistor rated at 1.0 Ohm, an internal dynamic braking resistor power rating of 100 Watts, and an internal shunt regulator power capacity of 51 Watts.

The 1388B-AV40 has an external shunt resistor rated at 6 Ohms, an external shunt resistor power capacity rated at 675 Watts, and an input circuit breaker rating of 25 Amperes/RMS. Circuit breaker interrupt rating is 5000 Amperes and static gain is 10 Amperes/Millivolt. The unit has an approximate weight of 23 pounds, or 10.42 kilograms. General specifications for the Bulletin 1388 Series include a form factor (at minimum inductance) of 1.03 or less, a peak current limit adjust of 10 to 250% of rated current, and a drive efficiency (minimum at rated load) of 85%. Modulation frequency is 5000 Hertz (+/- 10%) and input drift is 10 µV per degree Celsius. The 1388B-AV40 has a power input voltage of 120 Volts AC, three-phase, and a control input voltage of 35.5 Volts C.T., single-phase. Environmental specifications include an ambient temperature ranging between 0 and 60 degrees Celsius (32 to 140 degrees Fahrenheit) and a storage temperature ranging between 0 and 65 degrees Celsius (32 to 149 degrees Fahrenheit); relative humidity ranges between 5% and 95% (non-condensing). Maximum operating altitude for the 1388B-AV40 is 1000 meters (3300 feet).