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)

Fixed requirement: Tighten with 10.9 grade hex screws to avoid vibration loosening

2. Disassembly and installation process of cover plate

Disassembly steps: 1 Press the hook at the top of the keyboard to remove the keyboard, disconnect the connector, and place it in the hook; 2. Loosen the screws on the front cover, unlock the side buckle, and remove the front cover; 3. Loosen the terminal cover screws, pull down and remove the terminal cover forward

Installation steps: 1 After wiring is completed, reset the terminal cover and tighten the screws to the specified torque; 2. Reset the front cover and fix the screws; 3. Remove the keyboard connector, insert the driver interface, and press the top buckle of the keyboard to secure it

（2） Electrical installation

1. Circuit wiring requirements

Circuit Type Wiring Specification Core Terminals and Functions

Main circuit 1. Cable: The power line uses HIV series heat-resistant polyvinyl chloride insulated wire with a cross-section of ≥ 0.75mm ² (control circuit); 2. Wiring sequence: power supply → input terminals (R/L1/S/L2/T/L3) → frequency converter → output terminals (U/T1/V/T2/W/T3) → motor; 3. Braking unit: For models with built-in braking transistors, connect to B1/- terminal; for models without built-in transistors, connect to+3/- terminal -: DC bus negative terminal; +1/+2: DC reactor terminal; B1/B2: Braking resistor terminal

Control circuit 1. Cable: shielded twisted pair, up to 3m in length, with a distance of ≥ 30cm from the power line; 2. Grounding: single end grounding of the shielding layer, control circuit grounding not shared with the driver housing; 3. Power supply: External 24Vdc power supply connected to PS (+)/AC (-), cannot be reversed S1-S8: multifunctional input terminal; A1-A3: Analog input terminals; FM/AM: Analog output terminal; MA-MC: Fault relay output

2. Cable specifications and crimping terminals

Terminal type Bare wire specification (mm ²/AWG) Crimping terminal specification (mm ²/AWG) Recommended crimping tool

S1-S8, A1-A3 and other control terminals 0.2-1.5 (24-16) 0.25-0.5 (24-20) PHOENIX CONTACT CRIMPFOX 6

3. Key taboos for wiring

Do not connect AC power to DC bus terminals (-,+1,+2, B1, B2)

Do not short-circuit the SP (source) and SN (drain) terminals to avoid damaging the driver

The analog input terminals (+V, - V, AC) cannot be short circuited, and the maximum output current is 20mA

When the length of the motor cable exceeds 100m or the input voltage is ≥ 440V, a dedicated frequency converter motor should be used and the insulation voltage should be monitored

Startup and parameter configuration system

（1） Keyboard operation and mode switching

1. Core components and functions of keyboard

Component Name Function Description Operation Points

RUN/STOP button local mode start stop motor; The STOP key can still be forcibly stopped in remote mode with priority (disabled through o2-02)

The LO/RE key needs to switch between local/remote modes when the motor is stopped, and o2-01 can disable this function

RESET button fault reset; Move the cursor to the right; Press this key to reset when entering the next level menu fault state. The fault source needs to be removed first

Function keys (F1-F3) are used to customize functions, and the function names marked at the bottom of the display window can be configured through parameter settings for corresponding functions (such as parameter backup and monitoring switching)

The LED indicator lights RUN, ALM (fault/alarm), LO/RE (mode) are always on to indicate a fault, and flashing to indicate an alarm; RUN flashing indicates deceleration/zero speed

2. Core Mode Description

LOCAL mode: keyboard controls speed and start stop, frequency reference is set by keyboard (d1-01)

REMOTE mode: External terminal or communication control, frequency reference (b1-01) and start stop command (b1-02) are input from external sources

Mode switching condition: The motor must stop and cannot be switched when there is a RUN command in remote mode

（2） Initialize boot process

Preparation work: Confirm that the installation and wiring are correct, enter the motor nameplate parameters (rated power, voltage, current, frequency, number of poles)

Power on startup: Connect the power supply, and the drive enters the initial settings interface (first power on). If it is not displayed, call it up through Menu → F2 → Initial Setup

Basic settings:

Language selection (A1-00): Supports 13 languages including Chinese and English

Date and time setting: CR2016 battery (3V, lifespan of 2 years) needs to be installed

Setup Wizard Run: Follow the prompts to complete basic configurations such as control mode, duty mode, acceleration/deceleration time, etc

Auto Tuning tuning:

Rotational tuning (T1-01=0): It needs to be disconnected from the motor load, with the highest tuning accuracy, and the motor speed should be above 50% of the rated frequency

Static tuning (T1-01=1): does not require detachment from the load, automatically calculates motor parameters, suitable for scenarios where the load cannot be removed

EZ tuning (T4-01): only applicable to EZOLV control (A1-02=8), simplifies parameter settings

Trial operation verification:

No load operation: Confirm that the motor direction is correct, there is no abnormal vibration or noise, and the monitoring current/voltage is normal

Loading and running: gradually increase the load, verify overload capacity, acceleration/deceleration smoothness, fine tune PID and other application parameters

（3） Core parameter configuration

1. Control mode parameters (A1-02)

Control mode parameter setting applicable scenarios core advantages

V/f control 0 fan, pump, and multi motor linkage; Strong universality, high stability, and simple setup without motor parameters

Open loop vector (OLV) 2 high-precision speed control, low-speed high torque scenarios (such as conveyors) without speed feedback, speed range 1:100

EZ Vector (EZOLV) 8 ordinary variable speed scenarios, without the need for fine tuning to simplify operations, balancing performance and usability

2. High frequency core parameters

Parameter code, parameter name, function description, typical settings

C1-01/C1-02 Acceleration Time 1/Deceleration Time 1 Time from 0 to maximum frequency (E1-04) 10.0s (default, the heavier the load, the longer the time)

C6-01 duty mode selection switches between constant torque/variable torque mode 0 (HD, constant torque); 1 (ND, variable torque)

E1-04 maximum output frequency V/f curve maximum frequency 50Hz/60Hz (matching grid frequency)

E2-01 motor rated current matching motor nameplate current entered according to actual motor parameters (such as 10A)

L1-01 motor overload protection electronic thermal protection mode 2 (constant torque 10:1 speed range); 1 (Variable torque)

Select Ramp stop/Free stop/DC brake 0 (Ramp stop, default) as the stopping mode for b1-03; 1 (Free Stop)

3. Comparison of Duty Modes

Duty mode is suitable for load overload capacity and typical applications of carrier frequency

Heavy Duty (HD) Constant Torque Load 150% Rated Current/60s 2kHz (Default) Extruder, Conveyor, Machine Tool

Normal Duty (ND) variable torque load 110% rated current/60s 2kHz Swing PWM fan, pump blower