Product Description

Model Number Interpretation

• 1 – Series: 1AC (GP‑1000/GP‑1200 AC drive)

• AC – Product type: AC variable‑speed drive

• 2075 – Voltage/power: 200/230VAC, 7.5HP (5.5kW)

• PM – Variant: Panel‑mounted, protected chassis (IP20/NEMA 1)

Technical Specifications

• Input Power: Single‑phase AC, 200/230VAC ±10%, 50/60Hz, max 32A

• Output Power: Three‑phase AC, 200/230VAC, max 22A, 8.6kVA

• Rating: 7.5HP (5.5kW) continuous duty

• Control Mode: V/Hz (Volts‑per‑Hertz) open‑loop control

• Speed Range: 20:1 (V/Hz), 0–400Hz output frequency

• Enclosure: NEMA 1 / IP20, indoor use only

• Protection: Overcurrent, overvoltage, undervoltage, overtemperature, short circuit, ground fault, motor stall prevention

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

• Dimensions: Approximately 355 × 406 × 203mm (H × W × D)

• Weight: Approximately 18.1kg (40lbs)

Interface and Communication Configuration

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

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

• Communication: No standard communication port (analog‑only design); no RS‑232/485 or fieldbus interfaces supported

Core Functions

1. V/Hz Speed Regulation – Reliable open‑loop control for standard induction motors, ensuring stable speed under varying loads.

2. Medium‑Duty 7.5HP Design – Higher power rating for heavier loads while maintaining a compact panel‑mount form factor.

3. Analog Speed Control – Accepts 0–10VDC signal for easy integration with potentiometers, PLCs, or basic control systems.

4. Integrated Protection – Comprehensive electrical and thermal protection safeguards the drive and motor.

5. Legacy System Replacement – Direct retrofit for older 7.5HP 230VAC 1AC series drives in industrial machinery and commercial equipment.

Application Scenarios

• Medium General‑Purpose Machinery: Conveyors, fans, pumps, mixers, and compressors with 7.5HP induction motors.

• Light Industrial Equipment: Material handling systems, small machine tools, and process equipment.

• Commercial HVAC: Large fans and air handling units in commercial buildings.

• Legacy System Retrofits: Drop‑in replacement for Reliance 1AC series drives in older industrial/commercial facilities.

Usage and Maintenance Instructions

• Installation: Mount vertically in a clean, dry, well‑ventilated indoor area; maintain minimum clearance (150mm top/bottom, 50mm sides) for airflow and cooling.

• Wiring: Use properly rated copper conductors (minimum 10AWG for power circuits); separate power and control wiring by at least 300mm to reduce electrical noise; torque terminals to manufacturer specifications.

• Startup: Visually inspect for damage or loose connections; confirm input voltage matches the drive rating; start with no load and gradually apply load while monitoring current and temperature.

• Maintenance: Keep the enclosure clean and free of dust; inspect cooling fans and heat sinks quarterly; check terminals and wiring for signs of overheating or corrosion annually; replace worn components as needed.

• Troubleshooting: Use onboard LEDs and fault codes to diagnose common issues such as overcurrent, overtemperature, or motor stall; resolve faults before restarting the drive.