The horizontal position control-new-card (COC) is an electronic device which verifies the planarity of gravity baskets installed on hydraulic cranes. Whenever dangerous events occur to the people inside the basket, the card blocks the machine.
The leveling of the basket is obtained in a passive way, leaving it swinging until it reaches the balance position.
When it is stabilized, it is blocked, to allows the operator to work. If the horizontal position is lost, the card, through dedicated outputs, can alert the operator or lock the machine.
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