Yaskawa CIMR-G7B45P5

Technical Specifications​

Model class: Varispeed G7, 400 V class

Model code: CIMR-G7B45P5, 45P5 denotes 5.5 kW motor rating

Rated motor capacity: 5.5 kW

Output capacity: approximately 11 kVA

Rated output current: approximately 15 A

Rated input current: approximately 18 A

Input voltage: three-phase 380, 400, 415, 440, 460 or 480 VAC

Input frequency: 50/60 Hz

Allowable input variation: +10 percent, -15 percent voltage; ±5 percent frequency

Output voltage: proportional to input voltage, 0 to rated bus voltage

Output frequency: 0 to 400 Hz maximum depending on parameter setting

Control method: advanced vector control, V/f control and sensorless/closed-loop options depending on encoder configuration

Cooling: forced-air fan according to enclosure size

Protection: overcurrent, overvoltage, undertoltage, overload, ground fault, overheating and motor protection functions

Functional Features​

Advanced vector control provides high starting torque and stable speed regulation. Parameter sets support multiple motor memories, PID, brake control and communication options. The drive includes programmable digital and analog I/O, fault history, auto-tuning and energy-saving operation.

Application Scenarios​

Pumps and fans, compressors, conveyors, mixers, extruders, machine tools, cranes, HVAC retrofit and general factory motor speed control.

Performance Parameters​

Rated output current is 15 A for 5.5 kW at 400-460 V class operation. Speed regulation accuracy depends on vector mode, encoder feedback and load inertia. Overload capability follows Yaskawa G7 standard trip classes; check the specific parameter group for 50/60 Hz and heavy-duty/normal-duty ratings.

Material Composition​

Aluminum or coated steel heatsink, molded plastic control panel bezel, FR4 control PCB, IGBT power modules, electrolytic DC-link capacitors and copper busbars.

Structural Characteristics​

Power section contains rectifier, DC bus, IGBT inverter and cooling fan. Control section contains the main CPU, gate-drive interface, analog/digital I/O and operator keypad. Terminal block provides power input, motor output, control inputs and relay/alarm outputs.

Working Principle​

The rectifier converts three-phase AC input to DC. The DC link smooths voltage with capacitors. The IGBT inverter synthesizes variable-frequency, variable-voltage AC using PWM vector modulation. The control CPU calculates torque and speed commands from frequency reference, feedback and PID settings, then adjusts IGBT switching to drive the motor.

Installation Requirements​

Mount vertically in a ventilated enclosure with sufficient clearance for heatsink and fan airflow. Use correctly sized input breakers, motor cable and EMC filters. Ground the drive chassis separately from signal grounds. Provide ambient conditions within the G7 enclosed/open-frame specification and avoid dust, oil mist and moisture.

Usage Precautions​

Verify motor nameplate current against the 15 A rated output before commissioning. Set motor parameters, thermal protection and overload curves during auto-tuning. Do not touch DC bus terminals immediately after power-off because capacitors retain charge. Separate control cables from power cables. Perform fan and capacitor inspection according to operating-hour maintenance intervals.