The Yaskawa CIMR-ZU4A0414AAA (Z1000 Series) is a high-power 350 HP, 480 VAC 3-phase variable frequency drive (VFD) specifically engineered for commercial building automation, HVAC fan and pump control, and cooling tower applications. Rated for 414 Amps of continuous output current, this energy-efficient AC drive combines advanced motor vector control with integrated building automation system (BAS) communication protocols, a full-text LCD operator keypad with Hand-Off-Auto (HOA) functionality, and an integrated DC reactor for harmonic mitigation in high-capacity facility installations.
Technical Details
- Model / Part Number: CIMR-ZU4A0414AAA (Z1000 HVAC Series)
- Manufacturer: Yaskawa Electric
- Device Type: Variable Frequency Drive (VFD) / AC Inverter
- Horsepower Rating: 350 HP (Variable Torque / Normal Duty @ 110% Overload for 60 sec)
- Input Voltage & Phase: 380 to 480 VAC (+10%/-15%) | 3-Phase | 50/60 Hz
- Output Voltage & Current: 0 to 480 VAC 3-Phase | 414 Amps Rated Continuous Output
- Output Frequency Range: 0.01 to 240 Hz (0.01 to 400 Hz adjustable)
- Enclosure Rating: IP00 / Protected Chassis (UL Open Type)
- Embedded BAS Communications: BACnet MS/TP, Modbus RTU, Metasys N2
- Operator Keypad: 5-line 16-character Alpha-Numeric LCD with Real-Time Clock & Hand-Off-Auto (HOA) switches
- Harmonic Mitigation: Integrated DC Link Reactor / Choke (Standard)
- Dimensions & Weight: 44.9 in H x 26.4 in W x 14.6 in D | ~124.7 lbs (56.6 kg)
- Standards & Approvals: UL Listed, CSA, CE, Plenum Rated (UL 1995), IBC 2006 Seismic Certified, RoHS Compliant
Key Features
- Dedicated Z1000 HVAC drive architecture designed to optimize energy efficiency across large-scale facility air and fluid handling systems.
- Integrated Hand-Off-Auto (HOA) multi-language LCD keypad features an intuitive interface and real-time clock for scheduled operation and troubleshooting.
- Embedded building automation protocols (BACnet, Modbus, Metasys) enable seamless direct integration into building management networks without option cards.
- Independent dual PI controllers allow closed-loop feedback management for temperature, flow, and pressure regulation without external controllers.
- Internal DC link reactor mitigates line harmonics and protects internal drive electronics from utility line transients.
Applications
- Large-scale commercial facility HVAC air handling units (AHUs), supply and return fans, and industrial exhaust blowers.
- Chilled water circulation pumps, condenser water pumps, booster pumps, and municipal water management systems.
- Cooling tower variable-speed fan control, central boiler loops, and hydronic heating systems.
- Plenum and mechanical room energy-management retrofits requiring high-horsepower 480V VFD control.
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