NEMA 4X rated variable frequency drives (VFD) enable speed control for three-phase AC motors such as those in conveyors, fans, pumps, and material handling, and are suitable for washdown-duty applications. They offer V/Hz, sensorless vector or field oriented vector control up to 10hp. A full line of accessories ensures a reliable installation.
DURApulse GS20X AC drives offer several different speed control modes: standard V/Hz with pulse input feedback, sensorless vector (SVC) for Induction Motors (IM) and Permanent Motors (PM), and ultra precise Field Oriented Vector control (FOC) for maximum open loop speed regulation control.
DURApulse GS20X offers two analog inputs, one analog output, one frequency output, seven digital inputs (including one pulse train input up to 33kHz), two digital outputs, one SPDT relay output, and two STO inputs. All of the analog and digital I/O can be configured for a wide variety of input or output functions. One option card slot is available for either the backup control power option card or Ethernet/IP and Modbus TCP communication option card.
The DURApulse GS20X new generation high performance vector control drives provide many standard and advanced functions—all in a compact unit that has been reduced 40% in size. The NEMA 4X version provides service in the harshest of environments.
The drives include many of the same standard features as our GS family of drives including dynamic braking, PID, and RS-485 Modbus communication.
The GS20X drive expands the DURApulse family by adding single-phase input capability (ALL 230VAC drives can be supplied single-phase), a built-in PLC, and optional EtherNet/IP and ModbusTCP communication card. The drive supports up to four (4) independent IM motor parameter sets or supports control of a single AC PM motor.
DURApulse GS20X Series NEMA 4X AC drives start at