Technical information

562600-000, Issue1.0, March 2014
17 of 57
7.6 Overload / Hydraulic Limitation Control Override
7.6.1 Soft Override
Three seconds after overload has occurred, a soft override but-
ton will become available in the top menu with the supervisor
keyswitch is in the SET position, see sections 5.5 and 7.6.1.
If the soft override function is utilised, the machine hydraulics will
be re-enabled. However, the external alarm will stay active, the
internal red LED will flash, the blue lamp / Amber lamp will be switched off and an In
Override message will appear on the display. Once the alarm condition has been cor-
rected the system will automatically revert to normal operation.
7.6.2 Master Override key Switch
The system is fitted with a key operated Master override switch.
Turning the switch to the override position will allow normal opera-
tion of the hydraulic services controlled by PMERail regardless of
safety status. When the system is in override, the external alarms
will stay active, the internal red LED will flash, the blue lamp and
Amber lamp will be switched off and an In Override message will appear on
the display. The system will automatically return to normal operation after 30
minutes (default value), See section 4.1 for further details.
Soft override