160-BA04NSF1P1 | Allen-Bradley 160 SSC variable speed drive, 380–460VAC, 4A output, 2 HP, IP20

The 160-BA04NSF1P1 is a Variable Speed Drive (VSD) from the Allen-Bradley Bulletin 160 SSC (Smart Speed Controllers) series. It’s used to regulate the speed of AC motors in various industrial automation applications. This drive follows analog input signals like 4–20 mA or ±10 VDC to modulate output frequency from 0 to 240 Hz. It supports precise motor control with feedback-free operation, making it suitable for pumps, fans, and conveyors. The built-in keypad allows users to program and monitor system parameters locally.

This drive utilizes the V/Hz (Volts per Hertz) control method, offering reliable and simple speed regulation for standard AC motors. It's effective for applications where tight torque control is not critical. The V/Hz curve can be customized to match the characteristics of the connected load. Since this is a signal follower model, analog input is used to determine speed, enabling integration with sensors and controllers. The control method is ideal for cost-sensitive automation.

This drive supports multiple analog inputs including 4–20 mA, –10 to +10 VDC, and potentiometer (1k–10k Ohm). Each input type has a dedicated impedance to ensure accurate signal interpretation. These inputs allow external controllers or sensors to modulate motor speed in real time. The flexibility supports integration into process control systems without the need for digital protocols. Input signal scaling can be configured via the keypad.

The drive comes pre-installed with a Program Keypad Module, which allows full local control and monitoring. It includes a 6-digit, 7-segment LED display and navigation buttons for setting parameters. The keypad operates in two modes: Display Mode (read-only) and Program Mode (parameter edit). An ESC key provides access to program mode for configuration. This makes the drive accessible without needing external software tools.

No, this drive model has been discontinued by Rockwell Automation, though it may still be available from third-party suppliers. For new installations, PowerFlex 4 or 525 series are the recommended modern replacements. These newer drives support enhanced diagnostics, USB configuration, and broader communication options. Users with existing systems may still find spare parts and support through Rockwell’s migration programs. It is advisable to plan upgrades where long-term availability is critical.