Crane drive synchronisation
12 February 2015
When an Australian provider of overhead cranes, Modular Cranes, needed to to synchronise a new bridge crane with two existing units, NORD Drivesystems configured the drives keeping in mind the end-users budgetary requirements.
NORD proposed an integrated solution consisting of an efficient helical gear unit, a standard four-pole electric motor with a 10 Nm electromagnetic brake, and a motor-mounted frequency inverter with an external brake resistor. The two bridge drives were configured to synchronise and match the existing cranes using a simple parameter set-up procedure and were flange-mounted on the crane girder.
Operation is comfortably carried out with the same remote control pendant, no additional configuration is required.
The precision of the NORD helical gear set and the flexibility of the decentralised frequency inverter software meant the new crane could be synchronised with existing cranes without rotary encoders.