Allen-Bradley 1391-DES22-DI AC Servo Controller

The Allen-Bradley 1391-DES22-DI has a Integral Display User Interface, a N/A Output Configuration, and a 115V AC M Contactor Coil Voltage. It also contains a 300V DC Nominal Bus Output Voltage and a 22.5A Continuous Current (RMS).

The Allen - Bradley 1391-DES22-DI is a PWM digital programmable single - axis AC servo drive in the 1391-DES series. It lets 1326 AC servo motors run 33 - 50% above rated speed. Powered by an 80C196KB microprocessor, it controls the speed and torque of an AC servo motor in a system with a 1391-DES drive, a 1326 motor, and a 1391 isolation transformer.

It has a 300V DC (nominal) integrated power supply with a transformer, rectifier, and filter capacitor. The transformer input is 230V AC (3 - phase, 50 - 60 Hz). The 36V AC single - phase input from the isolation transformer's tertiary winding feeds the power driver board to generate ±12V DC and +5V DC control logic voltages. It has a 22.5A RMS continuous current and 45A RMS peak current. The continuous power output is 7.5 kW and peak power is 15 kW. The nominal bus voltage is 300V DC.

Technical specifications for 1391-DES22-DI

Manufacturer Rockwell Automation

Brand Allen-Bradley

Part Number/Catalog No. 1391-DES22-DI

Product Type Digital AC Servo Drive

Continuous Current 22.5A

User Interface Integral Display

Output Configuration N/A

M Contactor Coil Voltage 115V AC

Nominal Bus Output Voltage 300V DC

Continuous Current (RMS) 22.5A

Peak Current (RMS)45A

Continuous Power Output 7.5 kW

Peak Power Output 15 kW

Input Circuit Breaker Rating 26A RMS

Circuit Breaker Interrupt Rating 1300A

Weight 28 lbs.

The servo drive has a 2-line, 16 - character LCD and a 5-button keypad for programming. Front - panel - displayed faults include overtemperature, power, control voltage, resolver loss, and overvoltage. The keypad enables parameter access and modification. For good performance and to avoid damage, install it in a clean, dry, ventilated enclosure with filtered and cooled air. Enclosures using ambient air for ventilation need proper filtering to prevent contamination from oils, coolants, dust, and condensation.

It has a 50 CFM (unloaded) cooling fan. Follow the recommended spacing for smooth air flow. The operating temperature is 0 - 60º C (32 - 140º F) at 5 - 95% relative humidity (non - condensing). Power dissipation during operation varies with load: 55 W at 20%, 110 W at 40%, 165 W at 60%, 220 W at 80%, and 275 W at 100%. The drive's dimensions are 482.6 x 157.5 x 293.6 mm, and it weighs 12 kg.