Activating backup limiter

Only with wire rope hoist without normal operative travel to the top hoist limiter

 

The top hoist limiter must not be travelled to during normal operation. If it is travelled to, the load hook stops at the switching point of the top hoist limiter. The backup limiter switching point is above the top hoist limiter switching point and can therefore not be activated in a normal case.

If the hoist limit switch is incorrectly set or during a technical fault, it can happen that the backup limiter is nevertheless activated. Then the backup limiter must be bridged so that the crane can be switched on again.

 

Adjacent jumper
	Prong terminal block -X31

Remove the adjacent jumper between terminal 2 and 3 on the prong terminal block -X31.

Insert the removed adjacent jumper between terminal 2 and 1 on the prong terminal block -X31.

Press the emergency stop and unlock again.

●   The fault message is thus activated on ABUControl.

Wait until the frequency converter has started.

Lower the load hook until the backup limiter switching point is no longer activated.

The load hook can only be lowered.

Put the adjacent jumper from terminal 2 and 1 on terminal 2 and 3 back on the prong terminal block -X31.

If necessary: Reset backup limiter and the top hoist limiter.