The Allen-Bradley AC Servo 1391 series is a family of AC servo controllers. To maintain the UL listing, the power to an AC Servo 1391 controller must be provided from an Allen-Bradley 1391 Isolation Transformer. Only users trained on 1391 servo controllers and associated equipment should be involved in the planning and implementation of this controller system. Furthermore, static control procedures should be followed to minimize the probability of component damage. The AC Servo 1391 controllers are PWM (Pulse Width Modulated) servo controllers which are dedicated, single-AC-axis AC servo controllers. They are typically used along with computer-aided closed-loop positioning systems to control the position and rotary or linear motion of machine parts on an automated machine. AC Servo 1391 controllers are designed for panel mounting inside an enclosure. These controllers included an internal fan for air circulation.
The AC Servo 1391 controllers convert a 3-phase input voltage at 50 to 60 Hertz to variable voltage with controlled amplitude, phase, and frequency values. The output is used to regulate the speed and/or torque of a 1326 AC servo motor. The AC Servo 1391 controllers are available in ratings of 15 Amps, 22.5 Amps, and 45 Amps RMS with all these current ratings available in the same package size. The corresponding output power ratings are 5 kilowatts, 7.5 kilowatts, and 15 kilowatts, respectively. The rated ambient temperature for the AC Servo 1391 controllers is from 0 to 60 degrees Celsius and the storage temperature is from 0 to 65 degrees Celsius. The output of the integrated cooling fan is 50 CFM. The AC Servo 1391 controllers must be mounted inside suitable enclosures where they are protected from contaminants such as oil, dust, and coolants.
Browse available units in our catalog of AC Servo 1391.
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
This isolation transformer is designed to handle a power rating of 3.5 kVA with an open core and coil design. It provides three-phase primary voltage at 240/480 volts AC and outputs 230 volts AC as se
The Allen Bradley 1391B-EST45 AC Servo Controller has a 45 kW Peak Power Output and a 38A RMS Input Circuit Breaker Rating.
This transformer features two primary taps and four additional taps, facilitating versatile voltage adjustment. The secondary output is rated at 36 Volts with a capacity of 200 VA. It operates effecti
This isolation transformer is designed for one-phase secondary voltage output. It functions efficiently in environments with operating temperatures from 0 °C to 40 °C and is rated for installation at
This drive board is designed to operate within an input frequency of 47–63 Hz. It includes a continuous output current of 15 A and can momentarily handle a peak output current of 30 A for up to three
This interconnect cable features a quadrature encoder feedback system and requires 5V DC logic power. It includes screw terminal connectors and supports differential signals A, B, and Z. The cable is
This drive board outputs a power rating of 7.5 kW (10 HP) and can deliver a maximum current of 32 A. It utilizes a V/Hz control method for efficient operation and has an adjustable motor control range
This circuit board is designed for internal chassis or slot mounting and employs convection and forced air for effective cooling. It functions within a temperature range of 0°C to 60°C and can be hous