Mining Crusher Protection Sequence

Briefing

Commission a primary-crusher train with real startup dependencies. Sound the pre-start warning, prove the discharge conveyor is at speed, start the crusher, then release the feed conveyor only after crusher speed is proven. The process model ramps rotating equipment, builds ore load and generates high vibration when a blocked chute is fed. Any safety, lubrication, guard, blockage or vibration trip must remove every drive and remain latched until a deliberate healthy reset.

Objectives

• Require E-stop, lubrication, guard and chute permissives before accepting a start
• Run a one-second pre-start alarm before energising the discharge conveyor
• Prove discharge speed before the crusher and crusher speed before the feed conveyor
• Trip the complete train on chute blockage or high vibration
• Require RESET_PB with every permissive restored before clearing the trip

I/O Table

Your program will be tested against:

All test cases run automatically when you submit. Assertions are hidden until you pass.

1. #1Unsafe start is denied

   Missing lubrication pressure latches a trip and prevents all drives

2. #2Train starts in the safe order

   Warning, discharge conveyor, crusher and feed are sequenced from physical speed feedback

3. #3Blocked chute trips every drive

   A blockage during production immediately removes feed, crusher and discharge outputs

4. #4Trip reset requires a healthy plant

   Reset is rejected while the chute remains blocked and accepted after it clears