VF1-75 DC/AC VFD System

Part Number

• A800374-2 (Tram Drive)
• A800376-2 (Pre-charge / Pump Start Controller)

Description

This is a 550V DC/AC VFD System for shuttle cars using AC motors and is powered via cable from a power center.

Features

Tram & Conveyor Drive

• Regenerative drive
• PWM Flux Vector inverter
• Flux Vector torque control provides differential traction control for superb cornering.
• Rugged, short circuit proof power circuit provides excellent long term reliability.
• Multiple control options: standard analog foot switch, radio remote control, operator station
• Proximity ready

Pre-charge / Pump Start Controller

• Dual Function:
  • Soft charge of 550V DC power Bus DC Bus by-pass contactor
  • Pump motor soft start inverter 25kW @ 460V AC programmable pump motor current limit setting

Shuttle Car Controller Advantages

• Less heat in XP box
• No front end losses
• System programming via port in display – no need to open XP enclosure

Performance Advantages

• Load sharing tram motors
• Smooth and reliable electrical braking
• Variable speed / reversible conveyor control
• Approximately two times more power can be delivered to the shuttle car via the 550V DC cable.

Safety Advantages

• Detects trailing cable faults
• No live open wires on ground with cut cable
• Motor and drive ground faults detected immediately
• Power center instantly shuts down in case of cable break

Trailing Cable Advantages

• DC cable is more reliable
• Can get more cable on the reel
• DC cable quicker and easier to troubleshoot and repair
• Longer lengths allowed by MSHA – 850 feet of #2/0 is common
• Less trailing cable heat – up to 75% less heat than 250V DC trailing cables