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Monitoring
data storage
The Monitoring data storage function consists of three parts.
 Alarm data storage function block series
 Statistic data storage function block
 Maintenance data storage function block.
The Alarm data storage function block series are pre-configured for the following events:
Overload, Overspeed, Encoder Alarm, Overtorque and Load current. All event signals are
archived with their respective date, time and duration.
The Statistic data storage function block records all events that are part of the movement.
The function block records four separate movements. Hoisting, Trolley, Bridge travel and
Slewing. Depending on the crane, the inputs can also be used for other movements. For
each type of movement the function block counts the events and calculates an overall
runtime for each axis.
The maintenance block uses actual loading information to calculate the amount of used
‘theoretical lifetime’ for each movement and generates an alarm if maintenance is needed.
Hoisting Optimized CANopen M238
Schneider Electric
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