Technical information

562600-000, Issue1.0, March 2014

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3 System Identification

The PMERail Ultra system provides two primary safety functions

1. Lifting Stability

2. Machine Envelope Monitoring

Both safety functions are achieved through real time monitoring some

or all of the machine’s moving parts ( booms, other articulations, turret

etc ) and its environment ( ground pitch and inclination, load etc) and

actively determining the safety of the current operation where appropri-

ate limits have been set.

The Lifting Stability function falls into a single class

 Rated Capacity Controllers (RCC) prevent instability when the ma-

chine is involved in lifting operations. This is achieved by hydrauli-

cally stopping unsafe movements of the machine which could

cause the machine to tip.

The Machine Envelope Monitoring function has a single class

 Machine envelope controllers (MEC) prevent movements that

would bring parts of the machine into hazardous areas, most nota-

bly height restrictions when working under Overhead Line Equip-

ment and in an Adjacent Line Open situation.