{"product_id":"abb-acs550-01-031a-4-acs550-variable-frequency-drive","title":"ABB ACS550-01-031A-4 ACS550 Variable Frequency Drive","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eManaging three-phase motor performance in demanding automation systems is optimized using the \u003cstrong\u003eABB ACS550-01-031A-4\u003c\/strong\u003e variable frequency drive, which supplies a nominal output current of \u003cstrong\u003e31 Amps\u003c\/strong\u003e and \u003cstrong\u003e15 kW (20 HP)\u003c\/strong\u003e of normal-duty shaft power. Engineered as an industrial-grade AC drive, this model operates on an input voltage range of 380 to 480 V AC, ensuring steady performance under fluctuating line conditions. The physical frame incorporates an integrated patented swinging choke design that significantly reduces supply line harmonics under both partial and full load conditions. Encased in a protective IP21 enclosure class, it is optimized for clean, wall-mounted indoor vertical installations, enabling close-coupled motor speed and torque regulation across various mechanical processes.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-bottom: 0.5rem;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eAdvanced scalar and vector motor control models to accommodate both constant and variable torque loads.\u003c\/li\u003e\n  \u003cli\u003eIntegrated swinging choke design providing up to 25% lower low-frequency harmonics compared to traditional reactors.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in standard Modbus RTU interface with expansion slots for optional fieldbus communication adapters.\u003c\/li\u003e\n  \u003cli\u003eInternal EMC filter as a standard component to limit electromagnetic emission and radio frequency interference.\u003c\/li\u003e\n  \u003cli\u003eDedicated assistant control panel featuring multi-language support, real-time diagnostic helpers, and parameter backup capabilities.\u003c\/li\u003e\n  \u003cli\u003eCoated electronic circuit boards for improved reliability and resistance to industrial dust and ambient humidity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-bottom: 0.5rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eCentrifugal pumps and high-volume water distribution booster systems.\u003c\/li\u003e\n  \u003cli\u003eIndustrial ventilation fans, exhaust systems, and variable air-volume (VAV) air-handling units.\u003c\/li\u003e\n  \u003cli\u003eBulk material handling conveyors and packaging line sorting belts.\u003c\/li\u003e\n  \u003cli\u003eRotary screw air compressors and positive displacement industrial pumps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-bottom: 0.5rem;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eSpecification Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eABB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel Code\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eACS550-01-031A-4\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eProduct Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eACS550 Standard Drive\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInput Voltage Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e380 to 480 V AC (+10% \/ -15%)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNumber of Phases\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e3-Phase\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInput Frequency\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e48 to 63 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNominal Output Current (Normal Use)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e31.0 Amps\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNominal Output Current (Heavy Duty)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24.6 Amps\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOutput Power (Normal Use)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e15 kW (20 HP)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOutput Power (Heavy Duty)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e11 kW (15 HP)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eFrame Size\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eR3\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eEnclosure Class\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eIP21 (UL Type 1)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eAmbient Operating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 8px;\"\u003e-15 to +40 degC (No frost allowed; up to +50 degC with current derating)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eEfficiency (at nominal power)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e97.5%\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e583 mm x 203 mm x 231 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNet Shipping Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e16.00 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eFinland\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-bottom: 0.5rem;\"\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eTerminal Block Designation\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eFunctional Assignment \/ Wiring Parameter\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eU1, V1, W1\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e3-Phase AC mains input power connection terminals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eU2, V2, W2\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e3-Phase AC variable frequency output to induction motor\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eUDC+, UDC-\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eInternal DC intermediate bus connections (for dynamic brake chopper modules)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePE (Grounding Terminals)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eProtective Earth terminals for input feed and output motor cable shield\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eX1-1 to X1-6 (Analog I\/O)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eAI1 (Speed Ref), AI2 (Process Ref), AO1 (Frequency), AO2 (Current), 10V Reference, AGND\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eX1-9 to X1-18 (Digital I\/O)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eDI1 (Start\/Stop), DI2 (Fwd\/Rev), DI3 to DI6 (Preset Speeds \/ Ramp select), +24V Aux Output\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eX1-19 to X1-27 (Relay Outputs)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eThree programmable relay outputs (RO1: Ready, RO2: Running, RO3: Fault \/ Active Disturbance)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-bottom: 0.5rem;\"\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #2b6cb0; margin-bottom: 0.25rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThis R3-frame unit functions as a direct drop-in replacement for older ACS550-01-031A-4 drives. If migrating parameter configurations via the assistant control panel (ACS-CP-A) from older versions of the drive, ensure that the target drive firmware matches the source version to prevent \"Incompatible Parameter\" transfer faults.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-bottom: 0.25rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eFrame R3 thermal design relies on efficient forced-air convection. The cooling fan draws air from the bottom; thus, maintaining a minimum clearance of 200 mm above and below the VFD chassis is mandatory. Running this model inside unventilated, high-heat panels without dynamic thermal calculation will cause overtemperature faults (Fault 9: MOTOR OVERTEMP or Fault 3: DEV OVERTEMP) due to heat accumulation on the internal heatsink.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-bottom: 0.25rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen running on IT networks (ungrounded delta systems), the internal EMC filter must be disconnected by removing the internal EMC grounding screw. Failure to disconnect this filter on an ungrounded system will ground the drive's internal capacitors, causing fatal damage to the input varistors and input bridge rectifier.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-bottom: 0.5rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cp style=\"font-weight: bold; color: #9b2c2c; margin: 0 0 0.5rem 0;\"\u003eCRITICAL WARNING: HIGH VOLTAGE HAZARD\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eIsolate all electrical feeds prior to removing the front enclosure cover. After de-energizing, wait a minimum of 5 minutes for the internal DC intermediate bus capacitors to discharge. Measure voltage across terminals UDC+ and UDC- using a calibrated voltmeter to ensure potential is below 50 V DC before starting physical service or terminal block termination.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; color: #2d3748; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"margin: 0; padding-top: 2px;\"\u003eMount the drive vertically to a flat, non-flammable backplate within an enclosure designed to meet the site ambient requirements.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"margin: 0; padding-top: 2px;\"\u003eRun input power cables and output motor cables in separate steel conduits to mitigate high-frequency cross-coupling and electrical noise injection.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"margin: 0; padding-top: 2px;\"\u003eTerminate 3-phase incoming power to U1, V1, W1 and dynamic brake\/motor lines to U2, V2, W2. Torque terminals according to standard frame R3 specification requirements.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"margin: 0; padding-top: 2px;\"\u003eGround the drive frame using the dedicated PE grounding terminal, and connect the low-voltage control analog\/digital signaling using shielded twisted pair cables terminated to the control terminal block.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":52701957259627,"sku":"ACS550-01-031A-4","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/acs550-01-031a-4-vvat0lsttvn_e6a6ecce-7247-437b-827c-df60683facfc.jpg?v=1766478116","url":"https:\/\/www.plcprotech.com\/pt\/products\/abb-acs550-01-031a-4-acs550-variable-frequency-drive","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}