{"id":"automationdirect-gs31-20p5","model_id":"GS31-20P5","name":"AutomationDirect GS31-20P5","summary":"The GS31-20P5 is a DURApulse GS30 series enclosed AC variable frequency drive with a 230 VAC single-phase input and three-phase output rated for 1/2 hp. It controls three-phase induction and permanent magnet AC motors using SVC, V/Hz, FOC, encoder or torque mode, and includes RS-485 Modbus communication and integrated dynamic braking. Optional communication, encoder and I/O modules are available.","study_notes":["Control modes: SVC, V/Hz, FOC, encoder or torque mode.","Input is single-phase 230 VAC; output is three-phase 230 VAC.","Amperage rating is 2.8 A; variable torque amperage rating is 3.2 A.","Communication ports are RS-485 (RJ45) and USB B.","Port protocols are Modbus RTU Slave and Modbus ASCII Slave, up to 115.2k baud.","Integrated dynamic braking is included.","Carrier frequency range is 2–15 kHz; output frequency range is 0.1–599 Hz.","Analog I/O: 2 input channels with 12-bit resolution and 1 output channel with 10-bit resolution.","Discrete I/O: 7 input points and 3 output points.","Mounting is 35 mm DIN rail, panel or wall.","Programming language is Ladder.","For use with 3-phase induction and permanent magnet AC motors; optional communication, encoder and I/O modules are available."],"safety_notes":["Safe Torque Off (STO) is built-in.","Enclosure rating is IP20.","Temperature rating is -20 to +50 °C.","UL Listed File # E198015; CE declaration available; RoHS compliant.","External fuse is user-supplied."],"sources":[{"url":"https://www.automationdirect.com/adc/shopping/catalog/drives_-a-_soft_starters/ac_variable_frequency_drives_(vfd)/high-performance_vfds/gs31-20p5","title":"DURApulse AC High-performance Drive: 230 VAC, 1/2hp with 1-phase input, (VFD) (PN# GS31-20P5) | AutomationDirect","accessed":"2026-10-26"},{"url":"https://cdn.automationdirect.com/static/specs/cutsheet/GS31-20P5_cutsheet.pdf","title":"GS31 20P5 cutsheet","accessed":"2026-10-26"}],"verification":{"status":"source_checked","checked_at":"2026-10-26","values":12,"method":"llm_source_check"},"updated_at":"2026-10-26","type":"hardware","spec":{"category":"vfd","manufacturer":"automationdirect","controllers":[],"weight_kg":1.2020197805,"supply_voltage":"230 VAC","rated_power_kw":0.372849936,"rated_current_a":2.8,"frame_size":"A2","output_type":"PWM output","ip_rating":"IP20","operating_temp_min_c":-20,"operating_temp_max_c":50,"joints":[],"protocols":["modbus-rtu","modbus-ascii"],"standards":[],"error_codes":[]},"url":"https://machineschema.com/hardware/automationdirect-gs31-20p5","license":"https://creativecommons.org/licenses/by/4.0/"}