Nearly 4 years after our first project replacing the Hoist drive at QC04, we returned with a bigger challenge: replacing the entire drive system for 4 modules – Hoist, Gantry, Trolley, and Boom of QC05. Notably, Hoist and Gantry share one drive, while Trolley and Boom also share another, controlling 4 separate motor groups.

📍 Functions of the Main Modules

• Gantry: the movement of the quay crane on the ground via rail wheels.
• Boom: the structure that lifts/lowers the crane arm, kept in the highest position when not in use.
• Trolley: moves cargo horizontally.
• Hoist: lifts/lowers cargo vertically.
• During operation, the Boom is lowered while Trolley and Hoist usually work simultaneously.

⚠️ Problems Encountered

1. The old drives were obsolete, prone to overload faults, and no longer supported.
2. The Hoist required high-power motors to lift heavy loads.
3. The system design required 1 drive to control Hoist + Gantry, and 1 drive for Boom + Trolley.
4. High safety, smooth operation, and minimized vibration during lifting were essential.

🔧 Implemented Solution

The chosen solution: replacing the system with Parker DC590P 1600A for the Hoist – Gantry and Parker DC590P 500A for the Trolley – Boom modules.

Hoist Motor

Hoist Motor Assembly
Trolley Motor

Trolley Motor Assembly

Boom Motor

Boom Motor Assembly

One of the 8 Gantry Motors

⚙️ Installation & Fine-Tuning

System replacement installation time: 2 days.

• Hoist – Gantry: Parker DC590P 1600A, 4 modules (3 power + 1 control).
• Trolley – Boom: Parker DC590P 500A, easily installed even in compact control cabinets.
• Separate field excitation for Gantry & Boom using Parker 512 32A; Hoist & Trolley use built-in excitation.
• Gantry: 2 Parker 512 32A units; Boom: 1 Parker 512 32A unit.
• Integrated Parker TS8000 6-inch HIM display for monitoring and fault diagnostics.
• Additional hardware & peripherals integrated for compatibility with the existing system.

🏆 Results Achieved

• DC590P drives operate stably with no overload errors.
• Hoist runs smoothly, no overload faults when lifting cargo.
• Trolley operates smoothly with no shaking during movement.
• Gantry & Boom perform reliably and accurately.
• Operators experience smoother handling and improved efficiency.

🧪 45-Foot Water-Filled Container Load Test

👉 Watch the load test video