562400-000, Issue 1.3 January 2022
Page 16 of 61
7. Envelope Monitoring
PME400/405 is configured for Machine Envelope Control (MEC) only.
MEC will warn and prevent equipment motion. MEC is achieved by
interacting with the machine’s hydraulics; this allows motion to be cut to
any section of equipment that has reached a restriction but allow other
sections to operate unhindered unless they too reach the set restriction.
PME 405 only — the MEC device may reduce the speed of motion to a section of equipment if it is
approaching (but has not yet reached) a restriction.
The motion being slowed will be indicated by an amber arrow.
When setting a limit, either by entering a known value or by positioning the machine at the desired limit,
ensure any tool attached is in its least favourable position — as the system is unaware of any tool unless
listed in Tool Selection. See section 6.1.
PME400/405 can monitor the highest, furthest, nearest, lowest part of the machine and slew angle, taking
into consideration the counterweight when used with a virtual wall type restriction.
MEC
OFF: when operating without limit the indicator will show a cross.
ON: when operating with an active limit the indicator will not show a cross.
Care should be taken to test that the limit or limits are set correctly.
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
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Height Limiting
Max Radius Limiting
Low Limiting
Slew Limiting
Min Radius Limiting
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