YASKAWA GA700 series AC frequency converter

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