Alatas has been requested to analyse an underperforming control system configuration and set up to improve the integrity, reliability and accessibility.

Therefore a new risk analysis according to EN13849 and NORSOK requirements reviewed and approved by DNV was carried out to implement a new PLC configuration including safety PLC components.

Due to the relatively low age of the crane, all sensors and actuators except the operator controllers could remain and be reused resulting in a significant cost saving.

The new system was set up at the workshop where a FAT with the presence of the customer, the operating personnel and DNV was carried out prior to the delivery offshore. The offshore installation was done within a few days after detailed planning to reduce the crane downtime to a minimum.

The SAT was again carried out successfully with the presence of the customers and DNV’s presence and the crane handed over to operation after that.

Below is an illustration of the system and its arrangement. For any additional information on this project, you may contact your nearest Alatas service station.

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