562400-000, Issue 1.3 January 2022
Page 6 of 61
3. System Identification
The PME system provides an envelope safety function
All safety functions are achieved through real time monitoring of 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 appropriate limits have been set.
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, for example, height
restrictions when working under overhead wires. This is achieved by
hydraulically controlling unsafe movements of the machine.
MEC equipped systems may include Height Limiting and or Slew
Limiting.
During operation, indicators are displayed on the screen to clearly identify the
function supported by your PME400/405. Functions may not be available i.e.
when envelope monitoring is switched off, if this is the case a cross will be
painted over the function icon.
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