YASKAWA CIMR-JU4A0009BAA J1000 AC Drive 480V 5HP

Compact AC Drive for Yaskawa J1000 Three-Phase Motors

Specifications

Industrial Applications

• Variable-torque loads on 480 V three-phase supply — centrifugal fans, HVAC blowers, cooling-tower fans and circulation pumps.
• Constant-torque transport — small conveyors, augers, feeders and packaging machinery up to 5 HP variable-torque / 4 HP constant-torque.
• General machinery — mixers, small machine tools and auxiliary drives where simple adjustable speed is required without encoder feedback.
• Building automation and water-treatment auxiliaries — pump speed control for energy saving on a 480 V three-phase source.
• Retrofit of fixed-speed motors to variable-speed operation where V/f control is sufficient for the process.
• Light industrial cells built around Yaskawa Motoman robots where a compact J1000 drive feeds an auxiliary 480 V motor.

Design Purpose

The J1000 AC drive is a compact micro-drive built for one job: give a standard 480 V three-phase induction motor adjustable speed without the cost and complexity of a closed-loop vector system. Where the process only needs stable speed regulation — fan and pump curves, conveyor indexing, simple mixer control — V/f control is enough, and the J1000 keeps the panel footprint and commissioning effort small. That is why it lands in the J1000 family rather than the higher-end A1000 / GA series: it is the entry-level, easy-to-set-up drive for basic variable-speed duty.

The electrical rating defines the fit. With a 380–480 V three-phase input and a 5 HP variable-torque / 4 HP constant-torque output (8.8 A VT / 7.2 A CT), this unit is sized for small to mid-size 480 V motors — typically the auxiliaries around a robot cell rather than the robot itself. The IP20 open enclosure means it belongs inside a control cabinet, not in the open plant environment, and the panel-mount form factor keeps the cabinet layout tight. Because the J1000 is a distinct Yaskawa drive family, it is not a drop-in replacement for an A1000, V1000 or GA-series drive without re-parameterization and a wiring check — the order code CIMR-JU4A0009BAA must match the motor and application before energizing.

Common Failure Modes

• Overcurrent / earth (ground) fault trips — often caused by a shorted motor cable, grounded motor winding or excessive mechanical load; the drive shuts down to protect the inverter. Related troubleshooting: see our article on "Yaskawa J1000 Drive Overcurrent Fault Troubleshooting".
• Overvoltage / undervoltage alarms — bus voltage swings from a weak supply, regenerative load or missing line reactor. Related troubleshooting: see our article on "Yaskawa AC Drive DC Bus Overvoltage and Undervoltage Alarms Explained".
• Cooling fan seizure or abnormal noise — the internal fan ages and stalls, raising the heatsink temperature and forcing a thermal trip. Related troubleshooting: see our article on "Yaskawa VFD Cooling Fan Failure Symptoms and Replacement".
• DC-bus capacitor degradation — electrolytic capacitors dry out with age and heat, reducing bus hold-up and causing nuance faults. Related troubleshooting: see our article on "Yaskawa VFD DC-Bus Capacitor Aging Diagnosis".
• Inverter IGBT module failure — sustained overload, short circuit or poor cooling can destroy the output module. Related troubleshooting: see our article on "Yaskawa AC Drive IGBT Module Failure Diagnosis".
• Control-board or parameter loss — a disturbed setting, EMI or memory issue can drop the drive back to defaults and stop the motor. Related troubleshooting: see our article on "Yaskawa J1000 V/f Control Parameter Setup Guide".

If your drive displays a specific fault code, contact us with the exact code and the motor nameplate data for accurate diagnosis and a matched replacement quote.

Why Choose Us

• Specialized in industrial robot and drive spare parts for ABB, FANUC, KUKA and YASKAWA.
• We supply the exact Yaskawa unit CIMR-JU4A0009BAA (J1000 series AC drive, 480 V three-phase, 5 HP VT / 4 HP CT), matching the number in your records.
• We verify the motor rating and application — voltage, current, HP and duty type — before you order, so you receive the correct J1000 rating rather than a mismatched drive.
• Each drive is inspected and functionally checked, then packed to protect the terminals and enclosure, with full order tracking from Shanghai.
• Technical support available for drive selection, installation guidance and fault diagnosis; repair service offered for defective units.
• Quote-based service — send your inquiry with the motor nameplate data and required condition for a matched offer.

Related Products

• Yaskawa J1000 series AC drives — the same compact family at other voltage / HP ratings; contact us for the exact order code matching your motor.
• Yaskawa A1000 series general-purpose AC drives — for applications needing open-loop or closed-loop vector control beyond basic V/f.
• Yaskawa V1000 series compact vector drives — for space-limited panels requiring flux-vector control.
• Yaskawa GA500 / GA700 series — newer drives for 480 V three-phase motors across fan, pump and industrial duty.
• Yaskawa drive accessories (braking resistors, EMC filters, operator keypads) — contact us for the exact part numbers to match this drive.