YASKAWA GA700 series AC frequency converter

YASKAWA GA700 series AC frequency converter

Core positioning

The YASKAWA GA700 series high-performance AC frequency converter is designed for electrical engineers and technicians with experience in frequency converter installation, commissioning, and maintenance. Its core covers the entire process of safety specifications, mechanical/electrical installation, startup settings, parameter configuration, fault diagnosis, and scrap disposal for 200V (0.55-110kW) and 400V (0.55-355kW) models, emphasizing compliant operation and risk prevention. It provides precise guidance for motor speed and steering control in industrial scenarios and is suitable for general machinery and high-precision control equipment such as fans, pumps, conveyors, extruders, etc.

Product Core Parameter System

（1） Power supply and power specifications

Model level, power range, input voltage, input frequency, adaptation circuit requirements

200V level 0.55-110kW single-phase/three-phase 200-240VAC (+10%/-15%) 50/60Hz maximum symmetrical current 100000 RMS, suitable for circuits below 240VAC

400V level 0.55-355kW three-phase 380-480VAC (+10%/-15%) 50/60Hz maximum symmetrical current 100000 RMS, suitable for circuits below 480VAC

（2） Environmental and Protection Parameters

Remarks on specific requirements for environmental categories

Operating temperature open type (IP20): -10~50 ℃; Closed type (UL Type 1): -10~40 ℃, if the temperature exceeds 50 ℃, the capacity should be reduced to avoid freezing and condensation

Storage temperature -20~70 ℃ (short-term transportation)-

Relative humidity ≤ 95% RH (no condensation, no freezing)-

Neutral grounding should be consulted with the manufacturer for elevations ≤ 1000m (1% capacity reduction per 100m for 1000-3000m) and above 2000m

Pollution level ≤ 2 should be kept away from dust, oil stains, corrosive gases, and metal powders

Vibration/shock vibration: 10-20Hz (1G), 20-55Hz (0.2-0.6G); Impact: 0.2-0.6G needs to be firmly fixed to avoid resonance

（3） Core performance indicators

Control mode: supports three modes: V/f control, open-loop vector (OLV), and EZ vector (EZOLV)

Overload capacity: Heavy Duty (HD) 150% rated current/60s; Normal Duty (ND) 110% rated current/60s

Carrier frequency: 2kHz-15kHz adjustable, supports Swing PWM noise reduction mode

Speed range: V/f mode 1:40, OLV mode 1:100 (constant torque)

Analog input/output: Input 0-10V/4-20mA, output 0-10V/-10~+10V/4-20mA

Safety regulatory system (top priority)

（1） Risk level definition and core requirements

Risk level, risk degree, typical scenarios, and operational requirements

DANGER causes death/serious injury. 1. Live wiring/maintenance: Power must be cut off and wait for the capacitor to discharge (indicator light off, DC bus voltage<50Vdc); 2. Internal capacitance: It may still be charged after power failure, and it is necessary to wait for the warning label to specify the time

Warning: May cause death/serious injury. 1. Wiring error: The power supply cannot be connected to the output terminal (U/T1/V/T2/W/T3), and the input terminal (R/L1/S/L2/T/L3) needs to be connected; 2. Grounding requirements: The grounding terminal on the motor side must be grounded, and the cross-sectional area of the grounding wire for models such as 4389A-4675A must be ≥ 10mm ² (copper)/16mm ² (aluminum); 3. Sudden startup: Auto Unity, clear personnel/obstacles around the device before switching modes

CAUTION may cause minor/moderate injury. 1. High temperature risk: The temperature of the heat sink is high after operation, and maintenance requires power off and waiting for 15 minutes for cooling; 2. Handling specifications: For weights ≥ 15kg, 2 people and lifting equipment are required. It is prohibited to grip the front cover/terminal cover

NOTICE may cause equipment damage. 1. Cable requirements: Shielded twisted pair cables are required for the control circuit to avoid electromagnetic interference; 2. Prohibited testing: Voltage withstand testing or megohmmeter testing cannot be performed on the frequency converter; 3. Output side taboo: Do not connect phase leading capacitors or LC/RC filters

（2） Special safety requirements

Flammable material protection: The frequency converter should be installed on non combustible materials such as metal, and there should be no flammable materials around it

Terminal tightening: Tighten the terminal screws (3.6-41.5N · m) to the specified torque to avoid loosening and causing a fire

Residual current protection: Type B residual current monitor (RCM/RCD) is required, in compliance with IEC/EN 60755 standard

3-wire control safety: b1-17=0 needs to be set (ignore RUN command when powered on) to avoid misconnection causing motor reversal

Installation specification system

（1） Mechanical installation

1. Installation method and spacing

Installation direction: Priority should be given to vertical installation (to ensure natural heat dissipation), and special models should consult the manufacturer for side installation

Spacing requirements (single machine): up and down ≥ 120mm, left and right ≥ 30mm, front ≥ 50mm; parallel installation (2004xB-2082xB/4002xB-4044xB): driver spacing ≥ 2mm, L8-35=1 needs to be set (parallel installation mode)