Technical information

562620-000, Issue1.0, March 2014

7 of 25

4 System Identification

The PMERail 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.

 MEC equipped systems may include Height Limiting and or Slew

Limiting.

5 Service and Repair

PMERAIL has very few user serviceable parts. The safety controller / I/O module have

internal fuses that can be replaced if required. Section 6 describes daily, monthly and

yearly checks that must be carried out to ensure safe operation of the system.

If an issue is discovered which cannot be rectified using this guide, halt any operation,

seek authorised service immediately and do not continue operation until the fault has

been remedied.

5.1 Maintenance Review

Due to nature of the PMERail systems operating environment, changes in usage can oc-

cur. Prolec Ltd or the service agreement holder must be notified of any changes in the

pattern of use of the system for consideration.

Any alterations or modifications to machine components which affect the system must be

reported to Prolec Ltd or via the service agreement holder. To aid in the use of PMERail,

all appropriate technical bulletins relating to PMERail must be assessed and implemented

as appropriate. This information is available from Prolec Ltd. Prolec Ltd must be in-

formed of any Prolec system component failure. Be it directly or via the service agree-

ment holder.