Product Introduction

Model Interpretation

• 50 = 50 horsepower

• V = GV3000/SE series (Vtac7)

• 42 = 480 VAC input, heavy‑duty rating

• 60 = Standard firmware, NEMA 1 enclosure, enhanced I/O

Technical Parameters

• Power rating: 50 HP / 37 kW (heavy‑duty)

• Input voltage: 380–480 VAC, 3‑phase, 50/60 Hz

• Output current: 72 A continuous (heavy‑duty)

• Input current: ~78 A

• Max output frequency: 200 Hz

• Control modes: V/Hz, sensorless vector, closed‑loop vector (encoder feedback)

• Enclosure: NEMA 1 (IP20)

• Protection: 200% overcurrent, 150% overload (1 min), short‑circuit, ground fault, phase loss

• Operating temperature: 0 °C to +45 °C

• Software version: Ver. 6.06 / 6.07

• Status: Discontinued; available as surplus/refurbished

Interface & Communication

• Power terminals: 3‑phase AC in (L1/L2/L3), 3‑phase AC out (U/V/W), DC bus terminals

• Control terminals: Start/stop, speed reference (0–10 VDC), fault reset, encoder (A/B/Z), digital I/O

• Front panel: Keypad & LED display for setup, monitoring, and diagnostics

• Options: RS‑232/485, Profibus‑DP, DeviceNet communication modules

Core Functions

• Heavy‑duty vector control: High starting torque (200% at 0.5 Hz) for demanding loads

• Auto‑tuning: Motor parameter identification for optimal performance

• Speed range: 1:1000 (closed‑loop vector with 1024 PPR encoder)

• Dynamic response: 20 Hz bandwidth for rapid load changes

• Built‑in PLC: Basic logic functions for standalone operation

• Fault logging: 50‑event history with time stamps for troubleshooting

Application Scenarios

• Heavy‑duty conveyors: Mining, aggregate, and bulk material handling

• Extruders: Plastic, rubber, and food processing machinery

• Cranes/hoists: Material handling with precise speed/torque control

• Machine tools: High‑power lathes, mills, and grinders

• Retrofits: Replacement for legacy GV3000/SE 50 HP drives

Operation & Maintenance

• Mount in NEMA 1 enclosure with adequate ventilation; avoid high vibration

• Wire per schematic: AC line, motor, control signals, encoder, and DC bus (if used)

• Configure motor nameplate data, speed limits, current limits, and control mode via keypad

• Regularly inspect cooling fans, heat sinks, and wiring connections; keep drive clean

• Discontinued by Reliance Electric; use refurbished units or upgrade to modern AC drives