The Allen-Bradley PowerFlex 40 is a compact AC drive engineered for motor speed control across industrial and commercial equipment. It delivers dual control modes—Volts per Hertz (V/Hz) and Sensorless Vector Control (SVC)—enabling flexible operation across diverse load types. Available in power ratings from 0.2 to 11 kW (0.25 to 15 HP) with input voltage classes spanning 120V AC, 240V AC, 480V AC, and 600V AC, the drive accommodates single-phase and three-phase configurations. An integral keypad with speed potentiometer and CopyCat function simplifies commissioning and parameter transfer between units.
Technical Specifications
Power & Voltage: 0.2–11 kW across 120V AC, 240V AC, 480V AC, and 600V AC input classes. Single-phase and three-phase input options available by model. Output frequency range 50–60 Hz nominal. Adjustable PWM frequency up to 16 kHz. Input voltage tolerance ±10%. Overload capacity rated at 150% for 60 seconds or 200% for 3 seconds.
Control & Tuning: Auto-boost IR compensation and slip compensation optimize motor efficiency. Autotune function adapts to individual motor characteristics. Process PID control loop enables closed-loop applications. Internal logic includes timer, counter, basic logic, and StepLogic® functions. Preset speed selection available. Dynamic braking transistor integrated on most models; DC bus inductor connection supported on C-Frame drives.
I/O & Communications: Three fixed and four fully programmable digital inputs. Two isolated analog inputs (one unipolar, one bipolar). One scalable 10-bit analog output selectable as 0–10V or 0–20 mA. Two opto outputs and one Form C relay output. Integral RS-485 communication with built-in Modbus RTU support (standard 03 and 06 commands). Optional communication modules available for DeviceNet™, ControlNet™, EtherNet/IP™, Profibus DP, BACnet™, and LonWorks®.
– Typical Applications
Machine tools, fans, pumps, conveyors, and material handling systems benefit from the drive’s control flexibility and straightforward setup.
– Compatibility & Integration
Modbus RTU compatibility via RS-485 serial converter supports integration with RTU Master devices. Optional protocol modules enable connectivity to industrial network architectures.
