YASKAWA CIMR-P7U45P5 Variable Frequency Drive – Reliable 480V Control for Pumps, Fans, and General-Purpose Motors

The YASKAWA CIMR-P7U45P5 is part of the proven P7 series, designed for energy‑efficient speed control on three‑phase induction motors. From my experience, this model is a solid pick for HVAC air handlers, chilled-water pumps, and general plant utilities where steady torque, quiet operation, and long service life matter more than fancy bells and whistles. One thing I appreciate is how straightforward it is to commission: clear parameter structure, dependable autotuning, and a built-in PID that actually gets used in real sites.

You might notice that the code “U4” points to the 380–480 VAC class, while “5P5” typically aligns with a 5.5 kW (about 7.5 HP) motor size. That makes this unit a very practical fit for mid‑size fans and pumps without overspending on a larger frame.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days standard coverage.
• Lead time: 1 week if in stock; no more than 1 month at the latest.
• Payment: 50% advance; full payment prior to delivery.
• Express options: FedEx, UPS, DHL available.

Key Features

• Energy‑focused control for fans and pumps: V/f and sensorless vector modes with automatic energy‑saving functions that typically reduce consumption at partial load.
• Built‑in PID regulator: Directly control pressure, flow, or temperature from the drive—often removing the need for a separate loop controller.
• Smooth motor performance: Flying start, slip compensation, and adjustable accel/decel ramps for stable restarts and gentle process changes.
• Robust protection: Overcurrent, over/undervoltage, ground fault detection, and electronic motor thermal protection to protect the motor and drive.
• Service‑friendly design: Clear keypad navigation and parameter copy functions that speed up commissioning and replacements.
• Flexible I/O and comms: Multiple digital and analog I/O, RS‑485 Modbus RTU, and optional fieldbus cards when you need deeper integration.
• HVAC‑oriented tools: Sleep, wake, and carrier‑frequency settings to balance noise, efficiency, and motor temperature in real facilities.

Technical Specifications

Application Fields

This model is commonly used in:

• HVAC air handling units, supply/return fans, cooling tower fans
• Booster sets, chilled- and condenser‑water pumps, process pumps
• General utilities: blowers, small conveyors, mixers and agitators
• Water & wastewater stations seeking stable PID flow/pressure control

A facility manager told us, “Swapping to the P7 on our pump skid took less than an hour. The built‑in PID kept pressure steady without any extra boxes cluttering the panel.”

Advantages & Value

• Operational reliability: The P7 series is known for steady performance in dusty mechanical rooms and plant floors, with sensible protection features.
• Compatibility: Works with standard 3‑phase induction motors and ties into BMS/PLC systems via RS‑485 or optional fieldbus cards.
• Energy savings: In many cases, reducing speed by just 10–20% on fans or pumps yields noticeable kWh cuts, especially in part‑load HVAC.
• Lifecycle support: Widely used in the field, so spares, option cards, and technical know‑how are typically easy to source.
• Time‑to‑commission: Parameter copy and intuitive menus help technicians get it running fast—useful when you’re under a tight shutdown window.

Installation & Maintenance

• Cabinet & environment: Mount vertically in a clean, ventilated enclosure. Provide top/bottom clearance for airflow and avoid direct heat sources.
• Wiring practices: Use properly sized conductors and motor cable. Ground the drive and motor well; shielded cable is recommended to reduce EMI.
• Protection devices: Upstream fusing or a molded‑case circuit breaker matched to drive input current; add line/load reactors where harmonics/noise are a concern.
• Parameter setup: Run motor autotune, set base frequency, PID setpoints/limits, and accel/decel times according to your process.
• Routine checks: Inspect cooling fans and heatsink paths; clean dust buildup periodically. Back up parameters after commissioning or any change.
• Accessories (typical): Remote keypad/operator, input line reactor, DC/braking resistor, EMC/RFI filter, and fieldbus option cards (DeviceNet, PROFIBUS‑DP, LonWorks, BACnet) as the site requires.

Quality & Certifications

• Manufacturer quality systems: ISO 9001 (factory quality management)
• Typical approvals on P7 series units include CE and UL/cUL for relevant configurations
• RoHS compliance applies to many configurations; verify per build or region
• Warranty provided by us: 365 days