Product Description

Model Number Interpretation

• 2: Standard industrial drive series

• GU: GP‑2000 series, 230 VAC input platform

• 21003: 3 HP power rating, hardware revision 03

Technical Specifications

• Motor Power: 3 HP (2.2 kW)

• Input Voltage: 200/230 VAC ±10%, three‑phase, 50/60 Hz

• Output Voltage: 0–230 VAC, three‑phase

• Output Frequency: 0–400 Hz

• Rated Current: 10.6 A continuous

• Control Modes: V/F (Volts/Frequency) control

• Protection: Overcurrent, overvoltage, undervoltage, overtemperature, short‑circuit, ground fault

• Operating Temp: 0 °C to +45 °C

• Mounting: Panel‑mount (NEMA 1 enclosure)

• Weight: ~7.7 kg

• Dimensions: 260 × 180 × 150 mm (H×W×D)

Interface and Communication Configuration

• Power Terminals: Main AC input, motor output, DC bus braking terminals

• Control I/O: ±10 V analog input (speed reference), 24 VDC digital I/O (start/stop, fault reset, jog)

• Communication: Reliance proprietary protocol (no standard fieldbus ports)

• Indicators: LED status lights (power, run, fault); 7‑segment display for fault codes and parameters

• Feedback: No encoder port (sensorless V/F control only)

Core Functions

• Precision Speed Control: Stable speed regulation for 3 HP three‑phase AC motors via V/F control

• Energy Efficiency: Optimizes power consumption for variable‑torque loads

• Dynamic Braking: Supports external brake resistor for rapid deceleration

• Fault Diagnostics: Real‑time monitoring with fault code logging for quick troubleshooting

• Parameter Programming: Onboard display for configuration of acceleration/deceleration, limits, and I/O

Application Scenarios

• Light‑to‑Medium Manufacturing: Conveyor lines, packaging machinery, assembly equipment

• HVAC & Process: Medium‑sized fans, pumps, and agitators requiring variable‑speed control

• Material Handling: Conveyors and lift equipment with 3 HP AC motors

• Legacy System Upgrades: Direct replacement for older Reliance GP‑2000 drives

Usage and Maintenance Instructions

• Installation: Mount in a clean, well‑ventilated cabinet; allow 50 mm clearance for airflow

• Wiring: Use shielded cables for motor/control signals; torque terminals to 1.2 N·m; verify input voltage before power‑up

• Operation: Power on control circuit first, then main power; set parameters per motor nameplate

• Maintenance: Inspect connections quarterly; clean heat sink/filters semi‑annually

• Safety: Disconnect all power and wait 5 minutes for DC bus capacitors to discharge before service