Automation Direct GS2 series AC frequency converter

1. Product Fundamentals and Core Features

1.1 Basic Information

Product positioning: Upgraded from the GS1 series, adding dynamic braking, PID control, and detachable keyboard functions;

Warranty and Certification: Two year warranty, most models are UL/cUL/CE certified, GS2-5xxx series 575V drives do not have CE certification;

Core technology: Adopting IGBT technology, sine wave pulse width modulation (PWM), and adjustable carrier frequency of 1-12kHz.

1.2 Core Performance Parameters

Performance category key indicators specific specifications

Power range HP/kW 0.25HP (0.2kW)~10HP (7.5kW)

Overload capacity: Short term overload of 150% rated current, lasting for 1 minute

Torque characteristics: Starting torque 125% @ 0.5Hz, 150% @ 5Hz

Braking torque, braking capacity, no braking resistance: 20%; Equipped with optional braking resistor: 125%

Frequency control output frequency resolution 0.1Hz

Adjustable range of acceleration and deceleration time: 0.1~600 seconds (supports linear/nonlinear, including the second stage of acceleration and deceleration)

2 Model specifications and voltage levels

The products are divided into four series according to voltage levels, and the core specifications of each series are as follows:

2.1 Core parameter table for each voltage level

Voltage level, input type, model prefix, rated input voltage, power range, representative model, price range (USD)

115V single-phase GS2-1xx 115V AC ± 10%, 50/60Hz ± 5% 0.25HP~1HP GS2-10P2 (0.25HP), GS2-10P5 (0.5HP) 166~186

230V single/three-phase GS2-2xx 200/208/220/230/240V AC ± 10%, 50/60Hz ± 5% 0.5HP~7.5HP GS2-20P5 (0.5HP), GS2-27P5 (7.5HP) 158~465

460V class three-phase GS2-4xx 380/400/415/440/460/480V AC ± 10%, 50/60Hz ± 5% 1HP~10HP GS2-41P0 (1HP), GS2-4010 (10HP) 261~725

575V class three-phase GS2-5xx 500~600V AC -15/+10%, 50/60Hz ± 5% 1HP~10HP GS2-51P0 (1HP), GS2-5010 (10HP) 279~812

2.2 Physical Specifications (Taking Typical Models as Examples)

Voltage level, model size (H × W × D, mm), weight (lb), full load power consumption (W)

230V class GS2-20P5 151.0 × 100.0 × 140.5 3.5 34

230V class GS2-27P5 220.0 × 125.0 × 189.5 8.5 255

460V class GS2-41P0 151.0 × 100.0 × 140.5 3.5 73

460V class GS2-4010 220.0 × 125.0 × 189.5 8.5 255

575V class GS2-51P0 151.0 × 100.0 × 140.5 3.3 30

575V class GS2-5010 220.0 × 125.0 × 189.5 7.3 211

Note: The height does not include external grounding terminals, and the grounding terminals are increased by 10-15mm.

3 Input/Output and Communication Configuration

3.1 Input/output terminals

Terminal type, quantity, specification/function

Six programmable digital inputs, supporting functions such as forward and reverse rotation, start stop, multi-stage speed, external faults, and reset

Analog input 1 programmable, 0-10VDC (input impedance 10k Ω) or 0-20mA/4-20mA (input impedance 250 Ω), 10 bit resolution

Two programmable relay outputs, supporting output of states such as frequency converter operation/fault/speed reaching standard/over torque, etc

Analog output 1 programmable, 0-10VDC (maximum load 2mA), 8-bit resolution, output frequency/current/process variables, etc

Main circuit terminals – L1/L2/L3 (input), T1/T2/T3 (output), B1/B2 (braking resistor input), grounding terminal

3.2 Communication Function

Standard communication: RS-232/RS-485 dual interface, supporting Modbus RTU protocol, with a maximum communication speed of 38.4Kbps;

Optional accessories: GS-EDRV100 Ethernet communication module (DIN rail installation);

Communication cable: Supports 1/3/5-meter keyboard cable and provides plug and play communication cables with Automation Direct PLC (such as GS-RJ12-CBL-2, GS-485HD15-CBL-2);

Auxiliary tools: USB-485M adapter (USB to RS-485), ZL-CDM-RJ12X4/X10 communication distribution module (building a multi device network).

4 Function Configuration and Operating Characteristics

4.1 Core Control Functions

Control mode: V/f control, supporting constant torque (high and low starting torque), variable torque (high and low starting torque), and user-defined V/f curves;

Compensation function: automatic torque compensation, automatic slip compensation;

Protection functions: electronic overload protection, stall prevention (adjustable from 20-200% rated current), overvoltage protection, undervoltage protection, and over torque detection;

Special features: three-stage frequency hopping, fault history recording, automatic fault restart, programmable jog speed, PID integral control (suitable for pump/fan closed-loop control).

4.2 Operation and Display

Operation panel: 8-key, 4-digit, 7-segment LED screen, including 14 status LEDs, equipped with speed adjustment potentiometer, supporting start stop, forward and reverse rotation, and parameter configuration;

Display content: operating frequency, speed, percentage frequency, current, load percentage, output voltage, DC bus voltage, process variables, etc;

Keyboard features: Detachable design, supports remote operation via cable (1/3/5 meters optional).

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5.Installation Environment and Requirements

Protection level: IP20 (protective casing);

Ambient temperature

Conventional model: -10 ℃~50 ℃ (14 ° F~122 ° F);

7.5HP (5.5kW) and above models: -10 ℃~40 ℃ (14 ° F~104 ° F);

Note: When the ambient temperature reaches 50 ℃, the carrier frequency should be set to 2.1kHz or below, and the output current should be reduced to 80%;

Storage temperature: -20 ℃~60 ℃ (-4 ° F~140 ° F, short-term transportation);

Humidity: 20%~90% RH, no condensation;

Installation restrictions: Altitude ≤ 1000m, indoor installation, away from corrosive gases, liquids, and dust;

Vibration tolerance: maximum 5.9m/s ² (0.6G) at 10-55Hz.

6. Accessory system

Core Accessories List

Accessory type represents model adaptation scenario

Incoming reactors LR-20P5 (230V) and LR-41P0 (460V) suppress harmonics and stabilize input power supply

Braking resistors GS-20P5-BR (230V) and GS-41P0-BR (460V) increase braking torque to 125%

Filter EMI filter (20DRT1W3S), RF filter (RF220X00A) suppress electromagnetic interference

Fuse kit GS-20P5-FKIT-1P (230V single-phase), GS-41P0-FKIT (460V three-phase) circuit overcurrent protection

Installation accessory GS2-DR02 (DIN rail adapter) compatible with DIN rail installation

Communication accessories GS-EDRV100 (Ethernet module), USB-485M (USB to RS-485) extended communication function

Software tools GSoft (configuration software), KEPDirect (OPC server) parameter configuration and data collection

7 Typical Applications and Replacement Solutions

7.1 Typical Application Scenarios

General machinery: conveyors, material handling equipment, mixers, workshop tools;

Fluid machinery: fans, pumps, compressors;

HVAC: HVAC system.

7.2 Hitachi Drive Replacement Plan

The document provides a comparison table for replacing Hitachi SJ300, L100, and SJ100 series drives with GS2 series. The core replacement principles are:

Replacement premise: Ensure that the existing application is a three-phase input power supply (some models of GS2 series require three-phase power supply);

Power adaptation: If the power of the replacement driver is higher than that of the original device, the output power can be limited by parameters;

Function matching: GS2 supports V/f control and PID functions, which can cover the core functions of the original driver. Some advanced vector functions require confirmation of compatibility;

Example: The Hitachi SJ300-004LFU (0.5HP/230V) can be replaced with the GS2-20P5 (0.5HP/230V, priced at 158 USD).