{"product_id":"delta-electronics-vfd550cp43s-21-cp2000-fan-pump-vector-control-drive","title":"Delta Electronics VFD550CP43S-21 CP2000 Fan\/Pump Vector Control Drive","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eIntegrating advanced sensorless vector control with dedicated flow-control algorithms, the \u003cstrong\u003eDelta Electronics VFD550CP43S-21\u003c\/strong\u003e operates as a highly efficient variable frequency drive engineered for heavy-duty fan and pump operations. As part of the prestigious \u003cstrong\u003eCP2000 Series\u003c\/strong\u003e, this unit is designed to optimize energy consumption in variable torque applications, delivering precise speed control under fluctuating load conditions. The drive features an integrated \u003cstrong\u003e10k-step PLC\u003c\/strong\u003e, allowing for localized control logic without the need for an external controller, making it a robust solution for modern HVAC, wastewater treatment, and industrial ventilation architectures.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntelligent Multi-Pump Control:\u003c\/strong\u003e Built-in modes for cyclic pump control, fixed-amount pump control, and PID feedback optimization.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Communication Protocols:\u003c\/strong\u003e Integrated BACnet and Modbus RS-485 interfaces for seamless building automation and industrial SCADA integration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced Fire Mode:\u003c\/strong\u003e Bypasses non-critical protective trips during emergencies to keep exhaust fans operating continuously.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConformal Coating:\u003c\/strong\u003e PCB protection complies with IEC 60721-3-3 Class 3C3 for high humidity, dust, and corrosive gas environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnergy-Saving V\/f Curve:\u003c\/strong\u003e Dynamically adjusts output voltage relative to load variations to minimize electrical consumption.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eMunicipal water distribution networks and wastewater aeration systems.\u003c\/li\u003e\n  \u003cli\u003eCommercial HVAC cooling towers, chillers, and secondary hot water circulators.\u003c\/li\u003e\n  \u003cli\u003eIndustrial cleanroom air handling units (AHUs) and smoke extraction systems.\u003c\/li\u003e\n  \u003cli\u003eConstant pressure booster pump systems for high-rise commercial structures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\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 #1a365d;\"\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eValue\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;\"\u003eDelta Electronics\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 Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eVFD550CP43S-21\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;\"\u003eCP2000 Series\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eApplicable Motor Power\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e75 HP (56.25 kW)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eRated Output Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e105 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;\"\u003eInput Voltage \/ Phase\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e460V AC, 3-Phase (Range: 380V to 480V)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eControl Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eV\/f control, Sensorless Vector Control (SVC)\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 Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eIP20 \/ NEMA 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;\"\u003eInstallation Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eWall Mount (Frame E1 size)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e-10 degC to 50 degC (De-rate above 40 degC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePhysical Dimensions (W x H x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e11.02 in x 24.19 in x 10.04 in\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 Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e40.0 kg (88.18 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e42.0 kg (92.59 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\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 #1a365d;\"\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eTerminal Block \/ Port\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eFunctional Assignment\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;\"\u003eR\/L1, S\/L2, T\/L3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e3-Phase AC Main Power Input 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;\"\u003eU\/T1, V\/T2, W\/T3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eOutput Terminals to 3-Phase 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;\"\u003eMI1 to MI8\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMulti-Function Digital Inputs (Sink\/Source selectable via switch)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eAVI \/ ACI\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eAnalog Voltage Input (0-10V) \/ Analog Current Input (4-20mA) for PID reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eRA, RB, RC\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMulti-Function Relay Output (SPDT contact, 250VAC\/30VDC, 5A)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eRJ-45 Port\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eDual-port communication interface for RS-485 Modbus and BACnet MS\/TP\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe VFD550CP43S-21 serves as a direct drop-in replacement for older Delta VFD-F series models of equivalent ratings. Note that when migrating from the VFD-F series, control wire terminal positions are physically relocated, and parameter maps must be reconfigured as the CP2000 series uses a highly modernized, descriptive parameter structure. Hardware frame dimensions are identical to Frame E1 layouts, ensuring no panel restructuring is required.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen utilizing the integrated Multi-Pump control mode to sequence up to 8 secondary booster pumps, a critical engineering mistake is neglecting the interlock delay times. Ensure that parameter 12-04 (Pump Interlock Time) is configured to a minimum of 1.5 seconds to prevent contactor racing and transient back-EMF feedback into the output IGBT bridge of the drive. Additionally, in ambient operating spaces exceeding 40 degC, reduce the carrier frequency setting (Parameter 00-17) to 4 kHz to avoid thermal derating shutdowns.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo mitigate electromagnetic interference (EMI) on the analog inputs (AVI\/ACI), ensure the shield drain wire of the 4-20mA pressure transducer feedback loop is grounded ONLY at the drive-end common terminal (ACM). Never ground the shield at both ends, as this generates a ground loop, introducing artificial offset values to the internal PID controller. For RS-485 networks, a 120-ohm termination resistor switch (located next to the RJ-45 port) must be engaged on the physically last drive on the network segment.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Hazardous high voltage remains present on the internal DC-bus capacitors for up to 10 minutes after main AC power is disconnected. Measure the DC-bus voltage at the (+1) and (-) terminals with an isolated digital multimeter to confirm it has decayed below 36V DC before commencing terminal rewiring or mounting adjustments.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; border-radius: 50%; min-width: 28px; height: 28px; margin-right: 12px; font-weight: bold;\"\u003e1\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eMount the drive vertically to an unpainted, flat metal sub-panel using M8 bolts. Ensure a minimum clearances of 150mm (5.9 inches) above and below the drive chassis for optimal convection cooling.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; border-radius: 50%; min-width: 28px; height: 28px; margin-right: 12px; font-weight: bold;\"\u003e2\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eExecute all AC input power wiring (R\/L1, S\/L2, T\/L3) and motor output wiring (U\/T1, V\/T2, W\/T3) using shielded symmetrical motor cable with cross-sections rated for at least 75 degC copper conductor.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; border-radius: 50%; min-width: 28px; height: 28px; margin-right: 12px; font-weight: bold;\"\u003e3\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eEnsure the ground terminal (PE) is connected directly to the facility system earth ground plate. Resistance to ground must not exceed 0.1 ohms to satisfy EN 61800-3 EMC standards.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Delta Electronics","offers":[{"title":"Default Title","offer_id":53102151303531,"sku":"VFD550CP43S-21","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/vfd550cp43s-21-ak2cotrbpe3.png?v=1776138108","url":"https:\/\/www.plcprotech.com\/ru\/products\/delta-electronics-vfd550cp43s-21-cp2000-fan-pump-vector-control-drive","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}