20BD156A3AYNARD0

The Allen Bradley 20BD156A3AYNARD0 is a robust adjustable-frequency AC drive belonging to the PowerFlex 700 series. It is designed to deliver high performance with an input voltage of 480 V AC using a 3-phase system at 60 Hz. The drive offers excellent versatility in motor control with selectable modes such as V/Hz and sensorless/full vector operation. With a maximum output current of 156 A and a substantial power rating of 125 HP, this drive is capable of managing demanding applications efficiently.

The control method employs sine-PWM, which enhances the quality of output signals for optimal motor performance. This unit offers an output voltage range from 0 to 460 V and can function at frequencies up to 420 Hz, accommodating various motor requirements. For additional safety and functionality, the drive has an adjustable current limit ranging from 220% to 300%.

The input and output also include options for 115 V AC to allow remote connectivity, making this drive adaptable to different setups. The protective ratings are classified at IP20/NEMA Type 1, hence suited for use in non-harsh environments.

In terms of electrical characteristics, the unit has a DC bus voltage level of approximately 648 V DC, and addresses conditions of undervoltage at 280 V AC / 305 V DC and overvoltage thresholds of 810 V DC. For efficient system operation, filtering is provided by integrated CE filters and common mode chokes, ensuring operational stability while minimizing electrical noise. The user interface, consisting of an LCD and keypad, provides intuitive control and monitoring, facilitating ease of use during application setup and operation.