Automatic hook

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This special form known in crane technique does not need any external triggering to catch and release a dynamic. It will automatically latch and unlatch. If it sinks on a dynamic it will latch. When the dynamic is deposited after the transport it will unlatch. The function works like a ball pen: the first pressing makes the cartridge come out, the second makes it disappear.

A bit with the function ‘rope is loose’ will report to the PLC if the next upward going causes the shifting of the state of catching.

Please note that the bit does not mean whether a dynamic hangs on a hook. It just means that the rope is loose, that means that not even the hook is hanging at the rope.

And anyway there is another bit with the function ‘Load hangs on the hook’.

See also:

Common properties

Static elements of simulation

Hook

Tabsheet: Misc.