Product Description

Model Number Interpretation

• 1: First‑generation GP‑1200 series platform

• AC: AC variable‑speed drive

• 4: 460VAC voltage class

• 103: 3HP power rating

• U: United States version, 460VAC fixed input (not global 380–460V)

Technical Specifications

• Input: Three‑phase 460VAC ±10%, 50/60Hz; maximum input current 5.5A

• Output: Three‑phase 460VAC; maximum output current 4.8A; rated capacity 3.9kVA

• Power: 3HP (2.2kW) continuous

• Control: Open‑loop V/Hz; speed ratio 20:1; output frequency 0–400Hz

• Enclosure: NEMA 1, IP20 (indoor use only)

• Protection: Overcurrent, overvoltage, undervoltage, overtemperature, short circuit, ground fault, motor stall, line transient protection

• Ambient: 0–45°C, 5%–95% RH (non‑condensing)

• Weight: Approximately 11.5kg

Interface and Communication Configuration

• Power Terminals: L1/L2/L3 (three‑phase input), U/V/W (motor output), PE (protective earth)

• Control Terminals: Digital inputs for start/stop, forward/reverse, fault reset; analog input 0–10VDC for speed reference; relay output for fault indication (250VAC/5A)

• Communication: No onboard communication ports; hardwired control only

• Indicators: Two LEDs; green for power/run, red (IET) for drive fault

Core Functions

• Open‑loop V/Hz control with variable torque curves and torque boost for reliable starting and steady‑state operation

• Fixed 460VAC input optimized for North American power grids

• 0–10VDC analog speed input compatible with potentiometers and PLCs

• Comprehensive protection including short circuit, ground fault, and line transient suppression

• Direct drop‑in replacement for legacy 1AC series drives, ensuring compatibility with existing wiring and control schemes

Application Scenarios

• Small conveyors, fans, pumps, mixers, and processing machinery with 3HP motors in North America

• Light manufacturing, commercial HVAC, and ventilation systems operating on 460VAC three‑phase power

• Retrofit and maintenance of older industrial and commercial AC drive installations

Usage and Maintenance Instructions

• Mount vertically in a clean, dry, well‑ventilated indoor area with adequate clearance for cooling airflow

• Use rated copper conductors; separate power and control cables to minimize electromagnetic interference

• Inspect all connections before power‑up; check terminals and wiring periodically for looseness or corrosion

• Disconnect power before cleaning; use a dry cloth only—do not use liquids or chemical cleaners

• Routinely monitor heat sinks and terminals for signs of overheating

• Diagnose faults via onboard LED indicators; resolve all issues before restarting the drive

• Avoid static electricity discharge; do not disassemble the unit without professional guidance

• Store spare units in a cool, dry, dust‑free environment