1391-T050DT

The Allen Bradley 1391-T050DT is a robust AC PWM servo controller that meets the demands of precise motion control applications. With an apparent power rating of 5.0 kVA, it is engineered to handle primary AC input voltages of either 240V or 480V AC within a three-phase system at 60 Hz. This device also outputs 230V AC in a three-phase configuration and has a single-phase CT output of 35.5V AC, providing versatility for various operational needs.

Current output capabilities are rated at 15, 22.5, or 45 A RMS, supporting various configurations for different motor types. The unit is designed specifically to operate in conjunction with Bulletin 1326 AC motors, allowing for seamless integration. The controller employs a PWM mechanism for single-axis servo control, which enhances its response precision.

For power management, it includes an integral DC bus power supply rated at 300V DC nominal. Moreover, the built-in regenerative braking feature utilizes an integral shunt regulator, which enhances energy efficiency and reduces wear on mechanical components. The velocity command input operates with a ±10V DC signal with a 20 kOhm input impedance.

Enable/Run control is achieved through a contact closure requiring a voltage range between 15 to 30V DC. Additionally, the current limit can be adjusted smoothly from 0 to +5V DC, allowing users to set limits between 20% and 200% of the rated current. For monitoring purposes, the tachometer output provides a signal of 2.5V DC per 1000 RPM. To ensure user safety and equipment protection, the 1391-T050DT is equipped with a 3-pole magnetic circuit breaker, enhancing the reliability of operations.