GTS iMAPLA series - Page 27

Page 27 Issue 08/2013
iMAPLA system description
Function description
If the overload constraint is active, this is signalled to the machine driver on
the MMI control unit.
Ö MMI operating- and fault displays, page99
Newer MMI versions do not display the overload notication until the
overload values are unmistakable (>110 % of the generator's rated power).
In the event of afaulty lifting magnet/magnetic load, when the rated load
of the machine (>130-140 % of the generator's rated power) is exceeded
signicantly, aswitchover to the system fault takes place but not until the
operator has interrupted the load on the lifting magnet.
Ö MMI operating- and fault displays, page99
Note
If the lifting magnets are very cold, the overload warning may
light up on the MMI. However, this is only awarning from the
system which always runs in asafe operating state.
Once the lifting magnet heats up during cyclical energisation,
the warning should go away after atime. Depending on the type
of lifting magnet and the way of working, this may take from 5to
25minutes.
In case of doubt, contact the nearest service contact or
manufacturer.