Technical information

562600-000, Issue1.0, March 2014
37 of 57
8.2.4.2 Machine Envelope Controller (MEC) - Virtual Wall
If the equipment reaches the limit, the appropriate motion will be controlled.
*The approach limit is configurable at point of calibration, check system operation before
commencing work.
See sections 7.6 for hydraulic override details.
Once slew limits are set, the internal alarm will sound and the RED
LED will light if the equipment exceeds the either limit. Always
check that the slew limit activates at the set point. The limits cannot be de-
activated if in the alarm state. Observe the operational limitations given in
section 4. Do not travel once a slew limit has been set.
MEC systems will cut mo-
tion 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 safe directional indicators will be red.
Unsafe motion will be locked and is
indicated by RED arrows/triangles, safe
motion is indicated by GREEN arrows/
triangles
 The red LED will flash
 The internal alarm will sound
If any of the equipment enters the
approach limit*
 The amber LED will be lit
 The internal alarm will sound
 The message shown here will be
displayed.