562400-000, Issue 1.3 January 2022
Page 20 of 61
7.1.4. Machine Envelope Controller (MEC) - Height
If any of the equipment enters the approach limit* a ‘Close to max height’ message will
appear, the internal alarm will beep and the amber LED will be lit. If any of the equipment
reaches the height limit, the appropriate motions will be controlled.
PME 405 only — if the equipment is nearing the limit, but has not yet reached it, the appropriate
motions will be slowed progressively until the limit is reached.
MEC systems will cut motion to any
section of equipment that has
reached a limit but allow other
sections to operate unhindered
unless they too reach the set limit.
*The approach limit is configurable at point of calibration, check system operation before commencing
work.
See sections 4.1 and 7.1 for hydraulic override details.
Once a limit is set, the internal alarm will sound and the RED LED will
light if the equipment exceeds the current limit. Always check that the
current limit activates at the set point. The restriction cannot be
deactivated if in the alarm state. Observe the operational limitations
given in section 4.
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