HMK single source supply results in optimised drive system for Sparrows’ largest tensioner to date
When Sparrows Baricon, part of global lifting equipment specialist Sparrows Group, needed to construct its largest ever, 50-tonne tensioner, it called on its longstanding partners Siemens and HMK to help solve the challenge.
Incorporating Siemens integrated drive technology for maximum efficiency, performance and reliability, which resulted in achieving several other benefits. This Electric caterpillar-based tensioner is already being deployed for pipeline laying and lifting operations in the North Sea, as it operates from either ship or shore.
Siemens partner HMK played a key role in the project. HMK’s scope included:
- The sizing and specification of Sinamics S120 hardware
- Siemens motors
- Braking resistors
- Planetary gearboxes.
HMK’s design and build of the electrical panels incorporated Siemens’ S7-1500 PLC, and Siemens‘ LV and DNV-approved 400 kVA isolation transformer.
A software ‘motion core’ for the tensioner drive control included speed, haul and render modes. The Sinamics bookcase motor module was used as a braking chopper and the panel was designed to DNV standards.
The modular Siemens PLC software now provides a common platform for Sparrows tensioners.
Pushing the boundaries
Sparrows Baricon tensioners have been expanded with this latest development with load monitoring and remote-control units, using Siemens Simatic S7 PLCs, Sinamics S120 drives and a range of Siemens AC motors.