Yaskawa CIMR-VU4A0004FAA V1000 VFD 480V 3-Phase 2HP 4.1A NEMA 1

Product Specification

Product Overview

The Yaskawa CIMR-VU4A0004FAA is a V1000 compact variable frequency drive for 380-480 VAC three-phase industrial installations. Its Normal Duty capacity is 2 HP at 4.1 A, while its Heavy Duty capacity is 1 to 2 HP at 3.4 A according to the applicable motor rating and load conditions. The output-current value is the primary selection limit and must be compared with the actual motor full-load current.

This drive is intended for compact machines requiring controlled starting, adjustable motor speed, stable low-speed performance and coordinated stopping. Common applications include small conveyors, packaging feeders, ventilation fans, pumps, dosing equipment, light mixers and auxiliary machine axes. The compact NEMA 1 construction supports space-efficient control-panel installation while maintaining access to the keypad and control terminals.

Main Features

• 380-480 VAC three-phase input configuration
• 2 HP and 4.1 A Normal Duty output
• 1 to 2 HP and 3.4 A Heavy Duty output
• Open Loop Current Vector, V/f and PM Open Loop Vector control
• Normal Duty overload capacity of 120% for 60 seconds
• Heavy Duty overload capacity of 150% for 60 seconds
• Built-in braking transistor for external braking resistor applications
• Programmable digital inputs, analog references and relay output
• Serial communication capability for machine-control integration
• Standard output-frequency range up to 400 Hz

Technical Specifications

Compatible System and Applications

The CIMR-VU4A0004FAA is compatible with appropriately rated three-phase induction motors and supported PM motors. Open Loop Current Vector control can be selected where improved torque response is required without conventional encoder feedback. V/f control is suitable for straightforward variable-speed applications, while PM Open Loop Vector operation requires motor-specific electrical information and careful commissioning.

For pump and fan systems, confirm the process minimum speed and motor cooling capability. For conveyors and feeders, review starting torque, acceleration time and the possibility of material jamming. A drive should not be oversized or undersized solely by nominal horsepower because current demand, overload duration and environmental derating determine the usable capacity.

Maintenance and Replacement Notes

When replacing an existing unit, confirm the complete CIMR-VU4A0004FAA code and compare it with the installed nameplate. Check the voltage class, input phase, motor current, enclosure, terminal wiring and communication configuration. Record the existing parameters before disconnection and review all rating-dependent parameters after transfer.

Do not install a replacement drive until the motor cable and motor insulation have been checked if the original unit failed from an overcurrent or ground-fault event. Verify cabinet ventilation, heatsink clearance and ambient temperature. The IP20/NEMA 1 design is not intended for direct exposure to water, oil mist, conductive dust or corrosive contamination.

GA500 can be considered for modernization of a V1000-controlled machine. Select the GA500 model by voltage, output current and duty rating, then review terminal assignments, communication options, safety wiring and parameter conversion before commissioning.

Related Models

Related models include CIMR-VU4A0002FAA, CIMR-VU4A0005FAA and CIMR-VU4A0007FAA. The higher-capacity models should be evaluated when the motor current, acceleration demand or ambient derating exceeds the capability of CIMR-VU4A0004FAA.

Inquiry and Supply Notes

Please provide the full drive nameplate, motor rated current, required quantity and application information for quotation. Confirm whether the machine uses an external braking resistor, serial communication or special control-terminal configuration.