Yaskawa CIMR-V7AA40P4 Varispeed V7 AC Drive 0.4 kW 400 V

Compact AC Drive for Yaskawa Varispeed V7 400 V Motors

Specifications

Industrial Applications

• Small fans, blowers and pumps on a 400 V three-phase supply where variable-speed control replaces throttling or a fixed-speed starter.
• Conveyors, feeders and small material-handling sections that need soft starting and adjustable line speed.
• Packaging machines, mixers and small process equipment built around a sub-1 kW motor.
• OEM control panels where a compact drive with a local keypad and potentiometer keeps commissioning simple.
• HVAC auxiliaries and building services supplied from a 400 V three-phase board.
• Like-for-like replacement of a failed V7 drive in an existing machine, where keeping the same series avoids re-engineering the panel and wiring.

Design Purpose

The V7 (VS-606V7) is Yaskawa's compact general-purpose inverter — the small-frame drive that fits where a full-size industrial VFD is more than the duty needs. It targets the bottom of the power range: this unit is rated for motors up to 0.4 kW at 1.8 A output on a three-phase 400 V supply, with a 1.4 kVA inverter capacity. That is the size class used for single small motors inside a machine or panel, not for a plant-level drive.

Two design choices define how it is used on the plant floor. First, the drive carries a digital operator with a frequency-setting potentiometer (JVOP-140), so speed can be set and monitored directly on the front of the unit without an external reference signal — which is why the V7 was widely specified for stand-alone machines and local operator control. Second, the braking transistor is built in, so adding the optional braking resistor raises regenerative torque to roughly 150% for axes that decelerate frequently; without it the continuous regenerative torque is about 20%.

In this catalog the V7 sits apart from the other Yaskawa drives by size and generation. The J1000 is the newer compact V/f-only micro-drive, the A1000 is the high-end vector platform, and the G5 is the established general-purpose vector family. The V7 is the compact predecessor: sine wave PWM with V/f and voltage-vector control over a 0.1–400 Hz range, 150% overload for one minute, and programmable accel/decel up to 6000 s. Because it is a 400 V class unit with a Japan-domestic-standards design code, the order code must match your supply voltage and the original specification before it is energized; it is not a drop-in for a 200 V V7 or a J1000 of similar rating.

Common Failure Modes

• Overcurrent or ground-fault trip — a shorted motor cable, grounded winding or jammed load drives the unit into protective shutdown. Related troubleshooting: see our article on "Yaskawa V7 Drive Overcurrent Fault Troubleshooting".
• DC-bus overvoltage or undervoltage alarms — regenerative load, a weak supply or a missing reactor swings the bus out of range. Related troubleshooting: see our article on "Yaskawa V7 DC Bus Overvoltage and Undervoltage Alarms Explained".
• Overtemperature trip from a stalled cooling fan or dust-packed heatsink — the usual cause of summer shutdowns on small panel-mounted drives. Related troubleshooting: see our article on "Yaskawa V7 Cooling Fan and Heatsink Overheat Trip Fix".
• DC-bus capacitor ageing — electrolytic capacitors lose capacitance with heat and years of service, causing intermittent trips and weak bus hold-up. Related troubleshooting: see our article on "Yaskawa VFD DC-Bus Capacitor Aging Diagnosis".
• IGBT / power module failure — sustained overload, output short circuit or poor cooling destroys the output stage. Related troubleshooting: see our article on "Yaskawa AC Drive IGBT Module Failure Diagnosis".
• Digital operator or potentiometer failure — the JVOP-140 keypad and its frequency-setting potentiometer are mechanical wear items; a worn potentiometer gives an unstable or drifting speed reference. Related troubleshooting: see our article on "Yaskawa V7 Digital Operator JVOP-140 Setup and Potentiometer Failure Fix".
• Lost or wrong parameters after initialization — applying the wrong 2-wire / 3-wire initialization resets every setting and can reverse motor rotation. Related troubleshooting: see our article on "Yaskawa V7 Parameter Initialization and 2-Wire 3-Wire Control Setup".

If your drive shows a specific fault code, contact us with the exact code, the full order code on the nameplate and the motor data, so we can diagnose it and quote a matched replacement.

Why Choose Us

• Specialized in industrial robot and drive spare parts for ABB, FANUC, KUKA and YASKAWA.
• We supply the exact Yaskawa unit CIMR-V7AA40P4 (Varispeed V7 / VS-606V7, three-phase 400 V class, 0.4 kW / 1.8 A), matching the code in your records.
• We check voltage class, motor rating and design code (Japan domestic versus Asian standards) before you order, so you receive the 400 V V7 your panel needs rather than a 200 V unit of similar size.
• Each drive is inspected and functionally checked, then packed to protect the terminals, covers and digital operator, with full order tracking from Shanghai.
• Technical support available for drive selection, wiring checks and fault diagnosis; repair service offered for defective units.
• Quote-based service — send your inquiry with the nameplate photo, motor data and required condition for a matched offer.

Related Products

• CIMR-V7AA40P2 — Varispeed V7 drive one size down, 0.2 kW / 1.2 A output on three-phase 400 V (0.9 kVA), for lighter motors in the same family.
• CIMR-V7AA40P7 — Varispeed V7 drive one size up, 0.75 kW / 3.4 A output on three-phase 400 V (2.6 kVA), when your motor draws more than 1.8 A.
• CIMR-V7AA41P5 — Varispeed V7 drive at 1.5 kW / 4.8 A output on three-phase 400 V (3.7 kVA), the next step for larger fans or conveyors.
• JVOP-140 — the digital operator with potentiometer fitted to the VS-606V7; a direct replacement when the keypad is damaged or the potentiometer is worn.
• JVOP-144 and JVOP-146 — remote operator options for the V7 (with and without potentiometer) listed in the Yaskawa V7-to-V1000 transition guide, with 1 m and 2 m extension cables 72606-WV001 and 72606-WV003.